Instrument Cluster Self-Diagnostic Mode
To enter the instrument cluster self diagnostic mode with the engine off, press and hold the odometer reset button (base cluster) or the message center reset button (message center cluster). Turn the key to the RUN position and hold until the display indicates TEST (base cluster) or TEST (message center cluster) usually within three to five seconds. Depress the reset button once to advance through each stage of the self-test.
To exit the instrument cluster self-test mode, turn the ignition to the OFF position. If no DTCs related to the concern are retrieved, proceed to the SYMPTOM CHART to continue diagnostics.