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:
Reduced Engine Power Light
This light comes on
when a noticeable
reduction in the
vehicle’s performance
occurs.
The vehicle can be driven at a reduced speed
when the reduced engine power light is on,
but accelerati ...
Delayed Entry Lighting
The interior lamps will turn on if you open the door when
it is dark enough outside. When you close the door with
the ignition off, the interior lamps will stay on for up to
25 seconds or until ...
Customer Assistance Offices
Buick encourages customers to call the toll-free number
for assistance. However, if a customer wishes to
write or e-mail Buick, the letter should be addressed to:
United States — Customer Assis ...