Pinpoint Test At: The Adaptive Cruise Control Warning Chime Is Inoperative

• Ignition OFF.
• Ignition ON.
• Unbuckle the driver safety belt.
• Monitor the safety belt warning chime when the ignition is transitioned from OFF to RUN for 6 seconds.

Does the safety belt warning chime operate for approximately 6 seconds? 

• Yes  : GO to AT2 
• No  : INSTALL a new IPC.

  REFER to: INSTRUMENT PANEL CLUSTER (IPC) .

• Using a diagnostic scan tool, perform the IPC self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded? 

• Yes  : REFER to DTC CHART: IPC .
• No  : GO to AT3 

• Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).

Are any Diagnostic Trouble Codes (DTCs) recorded? 

• Yes  : REFER to: COMMUNICATIONS NETWORK .
• No  : GO to AT4 

• Verify the adaptive cruise control display functions in the message center when the adaptive cruise control is in operation.

Does the cruise control display operate in the message center? 

• Yes  : DIAGNOSE the cruise control system.

  REFER to: CRUISE CONTROL .

• No  : GO to PINPOINT TEST AK