See also:

Engine Oil Additives / Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all that is needed for good performance and engine protection. Engine oil system ...

Conditions in Which Remote Start Will Not Work
The remote start will not operate if: • The key is in the ignition (key access) or the ignition is in any position other than OFF (keyless access). • The transmitter is in the vehicle (k ...

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has chan ...