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:
Reading Lamps
There are front and rear reading
lamps.
The front reading lamps are located
in the overhead console.
The rear reading lamps are located
in the headliner.
or
: Press to turn each lamp
...
Changing a Tire When Trailer Towing
If the vehicle gets a flat tire while towing a trailer,
be sure to secure the trailer and disconnect it from the
vehicle before changing the tire. ...
Cleaning the Video Screen
Pour some isopropyl or rubbing alcohol on a clean
cloth and gently wipe the video screen. Do not
spray directly onto the screen and do not press too
hard or too long on the video screen. ...