ROAD SIGN ASSIST SYSTEM PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

HANDLING PRECAUTION FOR ROAD SIGN ASSIST SYSTEM

1. Under the following conditions, signs may not be displayed or the system may not operate.

   
   

   • Misalignment has occurred in the installation of the pre-crash safety city sensor

   • Mud, snow, ice, a sticker, etc. is stuck to the windshield in the pre-crash safety city sensor's field of view

   • During poor weather, such as heavy rain, heavy snow or dense fog

   • A bright light source is shining in front of the pre-crash safety city sensor

   • The sign is dirty, faded, angled, bent or has poor contrast (if electronic)

   • A part of the sign is concealed

   • After the pre-crash safety city sensor acquires the sign, the vehicle passes by too quickly

   • The driving scene is misjudged

2. Under the following conditions, the incorrect sign may be displayed or the system may not operate properly.

   
   

   • Speed limit signs on side roads may be detected and displayed (if positioned in the detection range of the front sensor) while traveling on a main road

   • Speed limit signs on roundabout exit roads may be detected and displayed (if positioned in the detection range of the front sensor) while traveling on a roundabout

   • The speed information displayed on the meter may differ from the speed information displayed on the navigation system (if equipped) due to the navigation system using map data

   • A sticker applied to the rear of the preceding vehicle is recognized as a sign

   • A shape resembling a supported sign is recognized

   • Immediately after moving over to a state or country with different speed limit units or driving directions

   • The driving scene is misjudged

PRECAUTION FOR TROUBLESHOOTING

1. If the malfunction is due to connectors being loosely connected, or improper installation of parts, reconnecting the connectors or removing and reinstalling the parts may temporarily or completely correct the problem.

2. To determine the malfunctioning area, use DTCs, freeze frame data and other data to help determine conditions at the time of the malfunction. Write down the data before disconnecting connectors or removing and installing parts.

3. The road sign assist system may be affected by malfunctions in other systems. Check for DTCs in other systems and, if present, troubleshoot those DTCs first.

SERVICE PRECAUTIONS

1. For parts that do not have specific inspection methods, perform all removal and installation procedures with the power switch off.

2. After removal and installation of parts has been performed, check for DTCs and confirm that none are output.

PRECAUTION FOR REPLACING PRE-CRASH SAFETY CITY SENSOR

1. If the pre-crash safety city sensor has been replaced, or the windshield glass has been replaced or removed/installed, be sure to perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust. If not performed, DTC C1AA9 will be stored when the pre-crash safety system is turned on.

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2. When replacing the pre-crash safety city sensor, replace it with a new one. If a pre-crash safety city sensor which was installed to another vehicle is used, the information stored in the pre-crash safety city sensor will not match the information from the vehicle and, as a result, a DTC may be stored.

3. When replacing or removing and installing the pre-crash safety city sensor, do not damage the camera lens or allow it to become contaminated with foreign matter.

4. Do not reuse a pre-crash safety city sensor that has been dropped or subjected to a strong impact.

PRECAUTION FOR REPLACING WINDSHIELD GLASS