See also:

Driving on Snow or Ice
Drive carefully when there is snow or ice between the tires and the road, creating less traction or grip. Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting in even ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...

Using the Digit Dial Command
1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. Say “Digit Dial”. The system responds with “Digit dial using <phone name>, please say ...