See also:

OnStar®
If the vehicle has OnStar and you subscribe to the OnStar services, please refer to the OnStar Terms and Conditions for information on data collection and use. ...

Lamps On Reminder
For vehicles with the lamps on reminder light, it comes on when the lights are in use. ...

ENGINE OVERHEATED — STOP ENGINE
This message displays and a continuous chime sounds if the engine cooling system reaches unsafe temperatures for operation. Stop and turn off the vehicle as soon as it is safe to do so to avo ...