Service All-Wheel Drive Light
This light should come on briefly when you turn on the ignition, as a check to show you it is working.
The service all-wheel drive light comes on to indicate that there may be a problem with the drive system and service is required. Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to the vehicle. This system is also designed to assist your GM dealer in correctly diagnosing a malfunction.
See also:
Engine Overheating
The vehicle has several indicators to warn of engine overheating.
You will find an engine coolant temperature gauge on the vehicle's instrument panel cluster. See Engine Coolant Temperature Gauge
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Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF
in each shift lever position.
The ignition should turn to LOCK/OFF only when the shift lever is in P (Park).
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CD Messages
CHECK DISC: If an error message displays and/or the
CD comes out, it could be for one of the following
reasons:
• It is very hot. When the temperature returns to
normal, the CD should play.
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