Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify there are no DTCs set related to the Forward Collision Alert or Lane Keep Assist system
- If any DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If no DTCs are set
Verify the B174W Front View Camera - Windshield is properly installed. Refer to Diagnostic Aids for details about identifying a properly installed B174W Front View Camera - Windshield.
- If the B174W Front View Camera - Windshield is not properly installed
  Repair as necessary.
- Go to next step: If the B174W Front View Camera - Windshield is properly installed
Verify the windshield in front of the B174W Front View Camera - Windshield is not blocked. Refer to Diagnostic Aids for details about identifying a blocked B174W Front View Camera - Windshield.
- If the windshield is blocked
  Repair as necessary.
- Go to next step: If the windshield is not blocked
Drive the vehicle.
Press and release the Adaptive Cruise Control Gap Switch.
Verify the adaptive cruise control gap setting on the Driver Information Center Display changes between Far, Medium, and Near with each button press.
- If the gap setting does not change
  Refer to Adaptive Cruise Control Malfunction .
- Go to next step: If the gap setting changes
A fault is currently not present and may be an intermittent condition. Refer to Diagnostic Aids.