Component Tests and General Diagnostics
INSTRUMENT CLUSTER DEALER TEST MODETo enter the instrument cluster dealer test mode, press and hold the trip odometer reset button (base cluster) or the message center RESET button (message center cluster). Turn the ignition switch to the RUN position and continue to hold the trip odometer or RESET button until the display indicates test, usually within 3 to 5 seconds. Press the trip odometer reset button once to advance through each stage of the self-test.
To exit the instrument cluster dealer test mode, turn the ignition switch to the OFF position.