Circuit/System Verification

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, transmission in R.
Verify the scan tool Parking Assist Switch parameter changes between Active and Inactive while pressing and releasing the parking assist switch.
- If the parameter does not change between Active and Inactive
  Refer to Parking Assist Switch Circuit Malfunction.
- If the parameter changes between Active and Inactive
Verify the parking assist switch indicator turns On and Off when commanding the Parking Assist Switch LED output control On and Off with a scan tool.
- If the indicator does not turn ON and OFF
  Refer to Parking Assist Switch Indicator Circuit Malfunction.
- If the indicator turns ON and OFF
Transmission in R, verify the scan tool Calculated Transmission Range parameter is Reverse.
- If the parameter is not Reverse
  Refer to Backup Lamps Malfunction (Automatic Transmission)Backup Lamps Malfunction (Manual Transmission) .
- If the parameter is Reverse
Transmission in R, verify the scan tool Parking Assist System Status parameter is Enabled.
- If the parameter is not Enabled
  Refer to Diagnostic Aids to determine the cause of the inhibit.
- If the parameter is Enabled
All OK.