Circuit/System Verification

WARNING: This page is about a different car, the 2021 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Ignition - On / Vehicle - In Service Mode
Verify DTC B356A is not set.
- If the DTC is set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If the DTC is not set
Cycle the component from the open position to the closed position: Lane Keep Assist Switch
Verify the component turns On and Off: Lane Keep Assist Switch Indicator
- If the component does not turn On and Off
  Refer to Circuit/System Testing.
- Go to next step: If the component turns On and Off
All OK.