See also:

Different Size Tires and Wheels
If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stability, a ...

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

Setting the Time (Without Date Display)
1. Press the CONFIG button and select Time Settings, or press . 2. Select Set Time. 3. Turn the Menu knob to adjust the highlighted value. 4. Press SELECT to select the next value. 5. To s ...