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:
Treadwear 200 Traction AA Temperature A
The following information relates to the system developed by the United States
National Highway Traffic Safety Administration (NHTSA), which grades tires by treadwear,
traction, and temperature pe ...
Engine Coolant (4.6L Engine)
The cooling system in the vehicle is filled with
DEX-COOL® engine coolant. This coolant is designed
to remain in the vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first ...
Danger, Warnings, and Cautions
Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them.
Danger indicates a hazard with a high level of risk which will result in serious i ...
