See also:

Interior Lighting
Courtesy Lamps When any door is opened, the interior lamps turn on to enter and exit the vehicle. Turn the instrument panel brightness control located on the left side of the steering wheel, ...

Automatic Transmission Fluid
How to Check Automatic Transmission Fluid It is not necessary to check the transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle t ...

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 ...