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:
Electric Parking Brake Light
For vehicles with the Electric
Parking Brake (EPB), the parking
brake status light comes on when
the parking brake is applied. If the
light continues flashing after the
parking brake is re ...
Vehicle Data Recording and Privacy
This GM vehicle has a number of
sophisticated computers that record
information about the vehicle’s
performance and how it is driven.
For example, the vehicle uses
computer modules to monit ...
When to Inspect the Engine AirCleaner/Filter
Inspect the air cleaner/filter at the Maintenance II
intervals and replace at the first oil change after
each 50,000 mile (83 000 km) interval.
If you are driving in dusty/dirty
conditions, inspec ...