OnStar Services

See also:

Park Brake and P (Park) Mechanism Check
WARNING! When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case ...

Driving Characteristics and Towing Tips
WARNING! The driver can lose control when pulling a trailer if the correct equipment is not used or the vehicle is not driven properly. For example, if the trailer is too heavy, the brakes m ...

Customer Assistance Offices (U.S. and Canada)
Cadillac encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Cadillac, the letter should be addressed to: United States Cadillac ...