See also:

ENGINE OIL LOW — ADD OIL
This message displays when the engine oil level is too low. Check the oil level. See Engine Oil. ...

All Vehicles
WARNING! You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it. • Be sure you have sufficient knowledge, experience ...

Reactivation for Subsequent Owners
Push and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle. The Advisor will update vehicle records and will explain the OnStar service offers and opt ...