OnStar Services
See also:
Tire Chains
WARNING!
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other veh ...
Map Scales
+ / − (Zoom In/Zoom Out): Press the zoom in or out screen buttons or the scale
on the bar to change the level of map detail. The scale appears on the screen once
the zoom in or zoom out scre ...
Obstacle Detection Feature
The Obstacle Detection Feature is part of the express-up feature and is
active:
- In the middle and upper portions of the window opening.
- During window up movements.
- In ignition OFF during a ...






