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:
Storing a Flat or Spare Tire and
Tools With a Slide In Fastener
1. If the flat tire is larger than the
spare tire, use the longer
mounting bolt.
2. Slide the shorter bolt to remove
it from the floor and insert the
longer one.
3. Replace the jack and to ...
Tire Sidewall Labeling
Useful information about a tire is molded into its sidewall. The examples show
a typical passenger vehicle tire and a compact spare tire sidewall.
Passenger (P-Metric) Tire Example
(A) Tire Size ...
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XM Updating: The encryption c ...
