See also:

Door Ajar Light
For vehicles equipped with this light, it comes on when a door is open or not securely latched. Before driving, check that all doors are properly closed. See Door Ajar Messages  for more in ...

Sending a Stored Name Tag During a Call
1. Press . The system responds with “Ready” followed by a tone. 2. Say “Send name tag.” The system responds with “Say a name tag to send tones” followed by a tone. 3. Say the name ...

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 ...