See also:

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 ...

Using the Tire Sealant and Compressor Kit to Temporarily Seal and Inflate a Punctured Tire
Follow the directions closely for correct sealant usage. When using the tire sealant and compressor kit during cold temperatures, warm the kit in a heated environment for five minutes. Thi ...

Navigation
OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the v ...