Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptom are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Entire combination meter assembly does not operate | Power source circuit | |
| Speedometer malfunction | Speedometer circuit | |
| Tachometer malfunction | Tachometer circuit | |
| Fuel receiver gauge display malfunction (Fuel receiver gauge is currently malfunctioning, or was malfunctioning in the past) | Fuel receiver gauge display circuit | |
| Engine coolant temperature receiver gauge malfunction | Engine coolant temperature receiver gauge circuit | |
| Hybrid system indicator malfunction | Hybrid system indicator circuit |
| Symptom | Suspected Area | Link |
|---|---|---|
| Master warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Master Warning) | ||
| Combination meter assembly | ||
| Door open warning light malfunction (Each door courtesy switch operation is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Doors All Open) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Brake warning light / red (malfunction) malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Brake) | ||
| Brake warning light / red circuit (Brake warning light remains ON) | ||
| Brake warning light / red circuit (Brake warning light does not come ON) | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| Driver or front passenger seat belt warning light malfunction | Combination meter assembly (LED): Perform Active Test (Driver Side Seat Belt) | |
| Driver side seat belt warning light circuit | ||
| Front passenger side seat belt warning light circuit | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| SRS warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Airbag) | ||
| SRS warning light circuit (SRS warning light remains ON) | ||
| SRS warning light circuit (SRS warning light does not come ON) | ||
| Combination meter assembly | ||
| Airbag sensor assembly | ||
| Charge warning light malfunction*2 | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Charge) | ||
| Charging system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| EPS warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. EPS) | ||
| EPS warning light circuit | ||
| Combination meter assembly | ||
| Power steering ECU assembly (for LHD) | ||
| Power steering ECU assembly (for RHD) | ||
| MIL (Check engine warning light) malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Check Engine Indicator) | ||
| MIL circuit (w/ EGR System) | ||
| MIL circuit (w/o EGR System) | ||
| Combination meter assembly | ||
| ECM | ||
| PCS warning light malfunction*3 | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Pre-Collision) | ||
| Pre-collision system | ||
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Slip indicator light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Slip) | ||
| Slip indicator light circuit (Slip indicator light remains ON) | ||
| Slip indicator light circuit (Slip indicator light does not come ON) | ||
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| VSC OFF indicator light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. VSC OFF) | ||
| VSC OFF indicator light circuit (VSC OFF Switch Circuit) | ||
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| ABS warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp ABS) | ||
| ABS warning light circuit (ABS warning light remains ON) | ||
| ABS warning light circuit (ABS warning light does not come ON) | ||
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| Brake warning light / yellow (minor malfunction) malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Lamp ECB) | ||
| Brake warning light / yellow circuit (Brake control warning light remains ON) | ||
| Brake warning light / yellow circuit (Brake control warning light does not come ON) | ||
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| Tire pressure warning light malfunction | Combination meter assembly (LED): LED check | |
| Combination meter assembly (LED): Perform Active Test (Indicat. Tire Pressure Warning System) | ||
| Tire pressure warning system | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Fuel level warning light malfunction (Fuel receiver gauge is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Fuel) | |
| Combination meter assembly | ||
| Rear fog indicator light malfunction (Rear fog light is normal)*6 | Combination meter assembly (LED): Perform Active Test (Indicat. Rr FOG) | |
| Lighting system | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Automatic high beam indicator light malfunction*4 | Combination meter assembly (LED): Perform Active Test (Automatic High Beam Indicator) | |
| Automatic high beam system | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| High beam indicator light malfunction (High beam headlight is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Beam) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Ready indicator light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. Ready (HV)) | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Tail indicator light malfunction (Taillight is normal) | Combination meter assembly (LED): Perform Active Test (Indicat. Lamp Tail) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Turn indicator light malfunction (Turn signal light is normal) | Combination meter assembly (LED): Perform Active Test (Turn Signal (Left) Indicator, Turn Signal (Right) Indicator) | |
| Combination meter assembly | ||
| EV indicator light malfunction | Check customize parameters (EV indicator light (Symbol)) | |
| Combination meter assembly (LED): Perform Active Test (EV Mode Indicator) | ||
| Hybrid control system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Clearance sonar indicator malfunction*5 | Combination meter assembly (LED): Perform Active Test (Indicat. Clearance Sonar LCD) | |
| LEXUS parking assist-sensor system | ||
| Combination meter assembly | ||
| Clearance warning ECU assembly (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| Parking brake warning light malfunction | Combination meter assembly (LED): Perform Active Test (Indicat. Park) | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Rear seat belt warning light malfunction*1 | Combination meter assembly (LED): Perform Active Test (Rear Seat Belt) (except F SPORT Models) | |
| Rear seat belt warning light circuit | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) |
*1: w/ Rear Seat Belt Warning
*2: for F SPORT Models
*3: w/ Pre-collision System
*4: w/ Automatic High Beam System
*5: w/ LEXUS Parking Assist-sensor System
*6: w/ Rear Fog Light
| Symptom | Suspected Area | Link |
|---|---|---|
| "Opening" display malfunction | Combination meter assembly | |
| "Ending" display malfunction | Check customize parameters (ODO Display Time After IG OFF Setting) | |
| Combination meter assembly | ||
| "ODO meter" display malfunction | Combination meter assembly | |
| "TRIP meter" display malfunction | Combination meter assembly | |
| "Engine oil maintenance mileage" display malfunction*11 | Oil maintenance required reminder reset procedure | |
| SFI system (w/ EGR System) | ||
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| ECM | ||
| "Current fuel consumption (Bar type)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average fuel consumption (After refuel)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average speed (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Average speed (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Elapsed time (After reset)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Elapsed time (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Distance (Range)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Distance (After start)" display malfunction (Other meter functions are normal) | Combination meter assembly | |
| "Other (Blank)" display malfunction | Combination meter assembly | |
| "Energy flow" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Sway warning" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "G monitor" display malfunction*2 | Electronically controlled brake system | |
| Combination meter assembly | ||
| Yaw rate sensor assembly | ||
| Skid control ECU (for LHD) | ||
| Skid control ECU (for RHD) | ||
| "Drive information tab" display malfunction | Combination meter assembly | |
| "Navigation tab" display malfunction*9 | Navigation system | |
| Combination meter assembly | ||
| Radio receiver assembly | ||
| "Audio tab" display malfunction*9, *16 | Navigation system (w/ Navigation System) | |
| Audio and Visual System (w/ Audio and Visual System with Parking Assist Monitor System) | ||
| Audio and Visual System (w/ Audio and Visual System without Parking Assist Monitor System) | ||
| Combination meter assembly | ||
| Radio receiver assembly (w/ Navigation System) | ||
| Radio receiver assembly (w/ Audio and Visual System) | ||
| "Drive support tab" display malfunction*4, *5, *6 | Dynamic radar cruise control system | |
| Lane departure alert system (w/ Steering Control) | ||
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Forward recognition camera | ||
| "Message tab" display malfunction | Combination meter assembly | |
| "Setting tab" display malfunction | Combination meter assembly | |
| "Shift position" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "SPORT indicator" display malfunction*15 | SFI system (w/ EGR System) | |
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "SPORT S indicator" display malfunction*10 | SFI system (w/ EGR System) | |
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "SPORT S+ indicator" display malfunction*10 | Adaptive variable suspension system | |
| SFI system (w/ EGR System) | ||
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| Absorber control ECU | ||
| Hybrid vehicle control ECU assembly | ||
| "ECO/ECO MODE indicator" display malfunction | Hybrid control system | |
| SFI system (w/ EGR System) | ||
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV MODE indicator light" display malfunction | Check customize parameters (EV indicator light) | |
| Hybrid control system | Click here | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "SNOW indicator" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Cruise SET indicator light" display malfunction*3 | Cruise SET indicator light circuit | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Cruise SET indicator light" display malfunction*4 | Cruise SET indicator light circuit | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Cruise main indicator light" display malfunction*3 | Cruise main indicator light circuit | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Cruise main indicator light" display malfunction*4 | Cruise main indicator light circuit | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Radar cruise main indicator light" display malfunction*4 | Cruise main indicator light circuit | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Lane departure alert indicator light" display malfunction*6 | Indicator circuit | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Charge warning light" display malfunction*20 | Charging system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Outside temp" display malfunction | Air conditioning system | |
| Combination meter assembly | ||
| Air conditioning amplifier assembly | ||
| "Icy street warning" display malfunction | Air conditioning system | |
| Combination meter assembly | ||
| Air conditioning amplifier assembly | ||
| "Phone (Received call)" display malfunction*9, *16 | Check customize parameters (Interrupt Display) | |
| Navigation system (w/ Navigation System) | ||
| Audio and Visual System (w/ Audio and Visual System with Parking Assist Monitor System) | ||
| Audio and Visual System (w/ Audio and Visual System without Parking Assist Monitor System) | ||
| Combination meter assembly | ||
| Radio receiver assembly (w/ Navigation System) | ||
| Radio receiver assembly (w/ Audio and Visual System) | ||
| "Turn-by-turn navigation" display malfunction*9 | Check customize parameters (Interrupt Display) | |
| Navigation system | ||
| Combination meter assembly | ||
| Radio receiver assembly | ||
| "Vehicle speed warning indicator" display malfunction (Speedometer is normal)*2 | Combination meter assembly | |
| "REV indicator" display malfunction (Tachometer is normal)*2 | Combination meter assembly | |
| "REV peak indicator" display malfunction (Tachometer is normal)*2 | Combination meter assembly | |
| "ACCESSORY" display malfunction | Entry and start system (for Start Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "IGNITION ON" display malfunction | Entry and start system (for Start Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "2WD MAINTENANCE MODE" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "2WD CERTIFICATION MODE" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "ADJUSTING FORWARD CAMERA" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "ADJUSTING FRONT RADAR BEAM" display malfunction*4 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "ERROR ADJUSTING FRONT RADAR BEAM" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "ADJUSTING FRONT RADAR BEAM VERTICAL" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "ADJUSTING FRONT RADAR BEAM HORIZONTAL" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "CHECKING PRE-CRASH BRAKE" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Headlight System Uninitialized Visit Your Dealer" display malfunction | Lighting system | |
| Combination meter assembly | ||
| No. 1 headlight ECU sub-assembly LH | ||
| "BRAKE!" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Push and Hold Power Switch for Emergency Stop"display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Shift to N and Press Power Switch to Restart" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Hybrid System Stopped Shift to P" display malfunction (Speedometer, Tachometer and shift position display are normal) | Combination meter assembly | Click here |
| "Hybrid System Stopped Stop in a Safe Place." display malfunction (Speedometer, tachometer and shift position display are normal) | Combination meter assembly | |
| "Dynamic radar cruise control or Lane departure alert warning reminder indicator" display malfunction*4, *6 | Dynamic radar cruise control system (w/ Dynamic Radar Cruise Control System) | |
| Lane departure alert system (w/ Steering Control) (w/ Lane Departure Alert System (w/ Steering Control)) | ||
| Combination meter assembly | ||
| Driving support ECU assembly (w/ Dynamic Radar Cruise Control System) | ||
| Forward recognition camera (w/ Lane Departure Alert System (w/ Steering Control)) | ||
| "Braking Power Low Stop in a Safe Place See Owner's Manual" display malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| "Accelerator Stuck Depress Brake to Stop" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Shift to P Before Exiting Vehicle" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Hybrid System Malfunction Do Not Be Towed" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Each door ajar" display malfunction (Each door courtesy switch and hood courtesy switch are normal) | Combination meter assembly | |
| Main body ECU (Multiplex network body ECU) | ||
| "Clearance sonar detection (image display)" display malfunction*8 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| "Parking Assist Malfunction" display malfunction*8 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| "Clean Parking Assist Sensor" display malfunction*8 | LEXUS parking assist-sensor system | |
| Combination meter assembly | ||
| Clearance warning ECU assembly (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| "Power Turned Off to Save Battery" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Shift Is in N Release Accelerator Before Shifting" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Depress Brake when Vehicle Is Stopped Hybrid System May Overheat" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Hybrid Battery Low Hybrid System Stopped Shift to P and Restart" display malfunction | Hybrid battery system | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Hybrid System Malfunction Stop in a Safe Place See Owner's Manual" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Hybrid Battery Low Shift Out of N to Recharge" display malfunction | Hybrid battery system | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Power Steering Malfunction Steering Power Low Visit Your Dealer" display malfunction | Power steering system | |
| Combination meter assembly | ||
| Power steering ECU assembly (for LHD) | ||
| Power steering ECU assembly (for RHD) | ||
| "Steering Power Low Visit Your Dealer" display malfunction | Power steering system | |
| Combination meter assembly | ||
| Power steering ECU assembly (for LHD) | ||
| Power steering ECU assembly (for RHD) | ||
| "Power Steering Malfunction Visit Your Dealer" display malfunction | Power steering system | |
| Combination meter assembly | ||
| Power steering ECU assembly (for LHD) | ||
| Power steering ECU assembly (for RHD) | ||
| "Release Parking Brake" display malfunction (Parking brake warning light is normal) | Combination meter assembly | |
| "Key not detected Check Key Location" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Release Accelerator" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Speed Limit Exceeded" display malfunction (Speedometer is normal)*12 | Combination meter assembly | |
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| "Lane Departure Alert Driver Attention Required" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "LDA Hold Steering Wheel" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "LDA Steering Assist Unavailable Hold Steering Wheel" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Check Engine Visit Your Dealer" display malfunction (MIL (Check engine warning light) is normal) | Combination meter assembly | |
| "Check Engine Reduced Engine Power Visit Your Dealer" display malfunction (MIL (Check engine warning light) is normal) | Combination meter assembly | |
| "Reduced Engine Power Visit Your Dealer" display malfunction (MIL (Check engine warning light) is normal) | Combination meter assembly | |
| "SRS Airbag System Malfunction Visit Your Dealer" display malfunction | Airbag system | |
| Combination meter assembly | ||
| Airbag sensor assembly | ||
| "Antilock Brake System Malfunction Visit Your Dealer" display malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| "Engine Coolant Temp High Stop in a Safe Place See Owner's Manual" display malfunction (Engine coolant temperature receiver gauge is normal) | Combination meter assembly | |
| "Charging System Malfunction See Owner's Manual" display malfunction (Charge warning light is normal) | Combination meter assembly | |
| "Radar Cruise Control Unavailable Clean Sensor" display malfunction*4 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Radar Cruise Control Unavailable" display malfunction*4 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Grille Shutter Inoperable" display malfunction*19 | Grille shutter system | |
| Combination meter assembly | ||
| Swing grille actuator assembly | ||
| "Smart Entry & Start System Malfunction See Owner's Manual" display malfunction | Entry and start system (for Entry Function) | |
| Entry and start system (for Start Function) | ||
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Blind Spot Monitor Unavailable" display malfunction*13 | Blind spot monitor system | |
| Combination meter assembly | ||
| Blind spot monitor sensor LH | ||
| "Cruise Control Malfunction Visit Your Dealer" display malfunction*3 | Cruise control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Cruise Control Malfunction Visit Your Dealer" display malfunction*4 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Lane Departure Alert Malfunction Visit Your Dealer" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Forward Camera System Unavailable" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Lane Departure Alert Unavailable" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Lane Departure Alert Turned On Steering Assist Active" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Lane Departure Alert Turned On Steering Assist Inactive" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Forward Camera System Unavailable Clean Windshield" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Pre-Collision System Malfunction Visit Your Dealer" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Blind Spot Monitor System Malfunction Visit Your Dealer" display malfunction*13 | Blind spot monitor system | |
| Combination meter assembly | ||
| Blind spot monitor sensor LH | ||
| "Oil Pressure Low Stop in a Safe Place See Owner's Manual" display malfunction (Speedometer and Tachometer are normal) | Combination meter assembly: Read the Data List (Oil Pressure Switch) | |
| Engine oil pressure switch assembly | ||
| Wire harness or connector (Combination meter assembly - Engine oil pressure switch assembly) | - | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Braking Power Low Visit Your Dealer" display malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| "POP UP HOOD Activated." display malfunction | Airbag system | |
| Combination meter assembly | ||
| Airbag sensor assembly | ||
| "POP UP HOOD Failure." display malfunction | Airbag system | |
| Combination meter assembly | ||
| Airbag sensor assembly | ||
| "Lane Departure Alert Unavailable Below Approx 50 km/h" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Lane Departure Alert Unavailable Below Approx 32 MPH" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Lane Departure Alert Unavailable at Current Speed" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Dynamic radar cruise control or Lane departure alert indicator" display malfunction*4, *6 | Dynamic radar cruise control system (w/ Dynamic Radar Cruise Control System) | |
| Lane departure alert system (w/ Steering Control) (w/ Lane Departure Alert System (w/ Steering Control)) | ||
| Combination meter assembly | ||
| Driving support ECU assembly (w/ Dynamic Radar Cruise Control System) | ||
| Forward recognition camera (w/ Lane Departure Alert System(w/ Steering Control)) | ||
| "Hybrid System Stopped Steering Power Low" display malfunction | Power steering system | |
| Combination meter assembly | ||
| Power steering ECU assembly (for LHD) | ||
| Power steering ECU assembly (for RHD) | ||
| "Turn Off Vehicle" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Would You Like to Take a Rest?" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Please Take a Rest" display malfunction*6 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Key Left inside Vehicle" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Turn Lights Off" display malfunction | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Moon Roof Open" display malfunction*14 | Sliding roof system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Window Open" display malfunction | Power window control system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Window / Moon Roof Open" display malfunction*14 | Sliding roof system | |
| Power window control system | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Depress Brake and Then Touch Key to Power Switch" display malfunction | Entry and start system (for Entry Function) | |
| Entry and start system (for Start Function) | ||
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Depress Brake and Power to Start" display malfunction | Entry and start system (for Entry Function) | |
| Entry and start system (for Start Function) | ||
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Steering Wheel Lock Press Power Switch while Turning Wheel" display malfunction | Steering lock system | |
| Entry and start system (for Entry Function) | ||
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "To Start Vehicle, Put Shift Lever into P" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Drive-Start Control Malfunction Visit Your Dealer" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Brake Override Malfunction Visit Your Dealer" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Key Battery Low" display malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "Engine Oil Level Low Add or Replace" display malfunction (Engine coolant temperature receiver gauge is normal) | Combination meter assembly: Read the Data List (Oil Level SW) | |
| Engine oil level sensor | ||
| Wire harness or connector (Combination meter assembly - Engine oil level sensor) | - | |
| Combination meter assembly | ||
| "Hybrid System Overheated Reduced Output Power" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Headlight System Malfunction Visit Your Dealer" display malfunction | Lighting system | |
| Automatic headlight beam level control system | ||
| Automatic high beam system (w/ Automatic High Beam System) | ||
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) (w/ Automatic High Beam System) | ||
| No. 1 headlight ECU sub-assembly LH | ||
| "Check RSA System" display malfunction*1 | Road sign assist system | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| "Accelerator and Brake Pedals Depressed Simultaneously" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Tire pressure indicator" display malfunction | Tire pressure warning system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Maintenance Required for Hybrid Battery Cooling Parts at Your Dealer." display malfunction | Hybrid battery system | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Aux Battery Low See Owner's Manual" display malfunction | Hybrid battery system | |
| Hybrid control system | ||
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Windshield Washer Fluid Low" display malfunction | Combination meter assembly: Read the Data List (Washer Switch) | |
| Level warning switch assembly | ||
| Wire harness or connector (Combination meter assembly - Level warning switch assembly) | - | |
| Combination meter assembly | ||
| "Fuel Low" display malfunction (Fuel receiver gauge is normal) | Combination meter assembly | |
| "Roads May Be Icy Drive with Care" display malfunction | Air conditioning system | |
| Combination meter assembly | ||
| Air conditioning amplifier assembly | ||
| "Traction Control Turned Off" display malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| "Oil Maintenance Required Soon" display malfunction*11 | SFI system (w/ EGR System) | |
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| ECM | ||
| "Injector Maintenance required soon" display malfunction*18 | Fuel injector maintenance required reminder reset procedure | Refer to Service Bulletin |
| Combination meter assembly | ||
| ECM | ||
| "Oil Maintenance Required Visit Your Dealer" display malfunction*11 | SFI system (w/ EGR System) | |
| SFI system (w/o EGR System) | ||
| Combination meter assembly | ||
| ECM | ||
| "Injector Maintenance required" display malfunction*18 | Fuel injector maintenance required reminder reset procedure | Refer to Service Bulletin |
| Combination meter assembly | ||
| ECM | ||
| "To Activate Auto High Beam, Switch Headlights to High Beam" display malfunction*7 | Automatic high beam system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Depress Brake and Power to Start" display malfunction | Entry and start system (for Entry Function) | |
| Entry and start system (for Start Function) | ||
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| "VSC Turned Off Pre-Collision Brake System Unavailable" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Pre-Collision System Unavailable" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "High Power Consumption Partial Limit On AC/Heater Operation" display malfunction | Air conditioning system | |
| Combination meter assembly | ||
| Air conditioning amplifier assembly | ||
| "Pre-Collision System Unavailable Clean Sensor" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "Pre-Collision System Off" display malfunction*5 | Pre-collision system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| "EV mode Unavailable" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV Mode Unavailable System Warming Up" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV Mode Unavailable Hybrid Battery Low" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV Mode Unavailable Speed Range Exceeded" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV Mode Unavailable Reduce Acceleration to Activate" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV mode Deactivated" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV mode Deactivated Hybrid Battery Low" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV Mode Deactivated Speed Range Exceeded" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "EV Mode Deactivated Accelerator Depressed Too Far" display malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| "Theft Sensor Turned Off" display malfunction*17 | Theft deterrent system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| "Theft Sensor Turned On" display malfunction*17 | Theft deterrent system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) |
*1: w/ Road Sign Assist System
*2: for F SPORT Models
*3: w/ Cruise Control System
*4: w/ Dynamic Radar Cruise Control System
*5: w/ Pre-collision System
*6: w/ Lane Departure Alert System (w/ Steering Control)
*7: w/ Automatic High Beam System
*8: w/ LEXUS Parking Assist-sensor System
*9: w/ Navigation System
*10: w/ Adaptive Variable Suspension System
*11: w/ Oil Maintenance Required Reminder
*12: w/ Speed Warning
*13: w/ Blind Spot Monitor System
*14: w/ Sliding Roof System
*15: w/o Adaptive Variable Suspension System
*16: w/ Audio and Visual System
*17: w/ Theft Deterrent System
*18: w/ Fuel Injector Maintenance Required Reminder
*19: w/ Grille Shutter System
*20: except F SPORT Models
| Symptom | Suspected Area | Link |
|---|---|---|
| All buzzers do not operate normally | Combination meter assembly | |
| Ready buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Restart while driving notification buzzer malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| Power switch operation while driving warning buzzer malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| Seat belt warning (for driver side) buzzer malfunction (Driver or front passenger seat belt warning light operation is normal) | Check customize parameters (Driver Side Seatbelt Warning Buzzer) | |
| Combination meter assembly | ||
| Seat belt warning (for front passenger side) buzzer malfunction (Driver or front passenger seat belt warning light operation is normal) | Check customize parameters (Front Passenger Side Seatbelt Warning Buzzer) | |
| Combination meter assembly | ||
| Seat belt warning (for rear seats) buzzer malfunction (Rear seat belt warning light operation is normal)*3 | Check customize parameters (Rear Seatbelt Warning Buzzer) | |
| Combination meter assembly | ||
| Vehicle roll-away notification (STEP 1) buzzer malfunction (Speedometer, tachometer and shift position indicator are normal) | Combination meter assembly | |
| Vehicle roll-away notification (STEP 2) buzzer malfunction (Speedometer, tachometer and shift position indicator are normal) | Combination meter assembly | |
| Engine oil pressure warning buzzer malfunction (Speedometer and Tachometer are normal) | Engine oil pressure switch assembly | |
| Wire harness or connector (Combination meter assembly-Engine oil pressure switch assembly) | - | |
| Combination meter assembly | ||
| EPS warning buzzer malfunction (EPS warning light is normal) | Combination meter assembly | |
| Engine coolant temperature warning buzzer malfunction (Engine coolant temperature receiver gauge is normal) | Combination meter assembly | |
| Smart key warning buzzer malfunction | Entry and start system (for Entry Function) | |
| Entry and start system (for Start Function) | ||
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| Brake control system temperature warning buzzer malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| Hill-start assist control (Reset) buzzer malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| Hill-start assist control (Set) buzzer malfunction | Electronically controlled brake system | |
| Combination meter assembly | ||
| Skid control ECU assembly (for LHD) | ||
| Skid control ECU assembly (for RHD) | ||
| Multi-information display warning buzzer malfunction (Master warning light is normal) | Combination meter assembly | |
| Depress the accelerator pedal with shift position N buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Accelerator hold warning buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Hybrid control system warning buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Tow prohibition buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Hybrid battery low voltage buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| HV unit excessive heat notification buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Radar cruise control low speed cancel buzzer malfunction*1 | Dynamic radar cruise control system | |
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Immobiliser key identification completion buzzer malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| Speed warning buzzer malfunction (Speedometer is normal)*2 | Combination meter assembly | |
| Driving with parking brake unreleased warning buzzer malfunction (Speedometer and brake warning light / red (malfunction) are normal) | Combination meter assembly | |
| Driving with door ajar warning buzzer malfunction (Speedometer and door open warning light are normal) | Combination meter assembly | |
| Sports shift reject buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| EV reject buzzer malfunction | Hybrid control system | |
| Combination meter assembly | ||
| Hybrid vehicle control ECU assembly | ||
| Light reminder buzzer malfunction | Lighting system | |
| Combination meter assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Turn signal flasher buzzer malfunction (Turn indicator lights are normal) | Check customize parameters (Flasher Sound Volume Adjustment) | |
| Combination meter assembly | ||
| Lane departure alert cancel buzzer malfunction*4 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| Lane departure alert warning buzzer malfunction*4 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| Door open when shift lever not in P warning buzzer malfunction | Entry and start system (for Entry Function) | |
| Combination meter assembly | ||
| Certification ECU (Smart key ECU assembly) | - | |
| Unsteady driving alert buzzer malfunction*4 | Lane departure alert system (w/ Steering Control) | |
| Combination meter assembly | ||
| Forward recognition camera | ||
| Road sign assist buzzer malfunction*5 | Road sign assist system | |
| Combination meter assembly | ||
| Forward recognition camera |
*1: w/ Dynamic Radar Cruise Control System
*2: w/ Speed Warning
*3: w/ Rear Seat Belt Warning
*4: w/ Lane Departure Alert System (w/ Steering Control)
*5: w/ Road Sign Assist System
| Symptom | Suspected Area | Link |
|---|---|---|
| "Diagnostic trouble code" display malfunction | Combination meter assembly | |
| Operating steering pad switch does not change multi-information display | Combination meter assembly: Read the Data List (Multi Switch (UP), Multi Switch (Down), Multi Switch (Menu), Multi Switch (ENTER), Multi Switch (Right), Multi Switch (Left) or Multi Switch (Back)) | |
| Steering pad switch assembly (w/ Pre-collision System) | ||
| Steering pad switch assembly (w/o Pre-collision System) | ||
| Spiral cable with sensor sub-assembly | ||
| Wire harness or connector (Combination meter assembly - Spiral cable with sensor sub-assembly) | - | |
| Combination Meter Assembly | ||
| Operating steering pad switch does not change ODO/TRIP meter display (multi-information display) | Odo/Trip switch circuit | |
| Operating light control rheostat does not change light brightness | Light control rheostat switch circuit | |
| Meter illumination is always dark | Illumination circuit | |
| Meter illumination does not dim at night | Illumination circuit | |
| Other systems that use the speed signal do not operate normally | Speed signal circuit |