See also:

TTY Users
OnStar has the ability to communicate to the deaf, hard&-ofhearing, or speech&-impaired customers while in the vehicle. The available dealer&-installed TTY system can provide in-vehicl ...

Transmission Messages
SERVICE 4 WHEEL DRIVE If the vehicle has four-wheel drive, this message may display if a problem occurs with the four-wheel-drive system. If this message appears, stop as soon as possible and turn of ...

Trip Odometer
The trip odometer shows how far the vehicle has been driven since the trip odometer was last set to zero. Press the reset button, located on the instrument panel cluster next to the voltmeter, to tog ...