Circuit/System Verification
WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify that no DTCs are set.
- If any DTC is set
- Go to next step: If no DTC is set
- Verify the scan tool can communicate with the left side object sensor.
- If the scan tool can not communicate with the left side object sensor
Refer to Circuit/System Testing - Left Side Object Sensor Malfunction.
- Go to next step: If the scan tool can communicate with the left side object sensor
- If the scan tool can not communicate with the left side object sensor
- Verify the scan tool can communicate with the right side object sensor.
- If the scan tool can not communicate with the right side object sensor
Refer to Circuit/System Testing - Right Side Object Sensor Malfunction.
- Go to next step: If the scan tool can communicate with the right side object sensor
- If the scan tool can not communicate with the right side object sensor
- Verify that the rear cross traffic indicators turn ON and then turn OFF when commanding the Rear Cross Traffic Visual Alert Indicators ON and OFF with a scan tool.
- If alert indicators do not turn ON and OFF
- Verify the system is enabled.
- If disabled, refer to diagnostic aids for cause of disable.
- If enabled test or replace the display.
- Go to next step: If indicators turn ON and OFF
- Verify that the audible alert turns ON and then turn OFF when commanding the Rear Cross Traffic Audible Alert ON and OFF with a scan tool.
- If the audible alert does not turn ON and OFF
- Verify the system is enabled.
- If disabled, refer to diagnostic aids for cause of disable.
- If enabled refer to audio system malfunction.
- Go to next step: If audible alert turns ON and OFF
- All OK.