See also:

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 changed, OnSta ...

Service Vehicle Messages
SERVICE A/C (Air Conditioning) SYSTEM This message displays when the electronic sensors that control the air conditioning and heating systems are no longer working. Have the climate control system s ...

Extending Engine Run Time
To extend the engine run time by 10 minutes, repeat Steps 1 through 3 while the engine is still running. The engine run time can only be extended if it is the first remote start since the vehicle has ...