OnStar Services

See also:

Keyless Locking
If the vehicle has the keyless access system, this feature allows you to select whether the doors automatically lock during normal vehicle exit. When the vehicle is turned off and all doors become c ...

Service Vehicle Messages
SERVICE AC SYSTEM This message is displayed if there is a problem with the air conditioning system. Take the vehicle to your dealer for service. SERVICE POWER STEERING This message is displa ...

Steering Wheel Adjustment
Push the control up or down to tilt the steering wheel up or down. To set the memory position, see Vehicle Personalization  . ...