CRUISE CONTROL SYSTEM FAIL-SAFE CHART

Tech Tips

If the following conditions are detected while the cruise control system is controlling vehicle speed, the system clears the vehicle speed stored in the hybrid vehicle control ECU and cancels control of vehicle speed by the cruise control system.

Vehicle Condition Auto Cancel Condition Re-operation Condition

  • Cruise control indicator goes off

  • A warning message "Check Cruise Control System" is displayed

  • "Pong" warning sound is heard

  • Open or short in stop light switch circuit

  • Problem with vehicle speed signal

 Cruise control system is turned off and back on again using the cruise control main switch.

  • Problem with stop light switch input circuit

  • Problem with cruise control main switch cancel circuit

  • Malfunction in the electronically controlled brake system

  • Communication stop between brake booster with master cylinder assembly and hybrid vehicle control ECU

 Power switch is turned off and back to ON again.
Cruise control indicator remains illuminated (Control of vehicle speed by cruise control system is canceled)

  • Vehicle speed is lower than low speed limit (approximately 40 km/h [25 mph]) while driving with cruise control system controlling vehicle speed

  • Electronically controlled brake system operates while driving with cruise control system controlling vehicle speed

 Press cruise control main switch to +RES
Vehicle speed is lower than stored vehicle speed by approximately 16 km/h (10 mph) or more Press cruise control main switch to -SET
Cruise control indicator light goes off Malfunction in the hybrid control system Cruise control system is turned off and back on again using the cruise control main switch.