Reactivation for Subsequent Owners
Push 
and follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Fog Lamps
The fog lamps button is on the exterior lamps control to
the left of the steering column.
(Fog Lamps): Press the exterior
lamps button to
turn the fog lamps on or off. A light comes on in
th ...
Using the Store Command
The store command allows a phone number to be
stored without entering the digits individually.
1. Press and hold for two seconds.
The system
responds with “Ready” followed by a tone.
2. S ...
Tire Pressure
Tires need the correct amount of air pressure to operate effectively.
Notice: Neither tire underinflation nor overinflation is good. Underinflated
tires, or tires that do not have enough air, can r ...