OnStar Services

See also:

Tire Pressure
Tire pressure is displayed in the DIC for each tire in either kilopascals (kPa) or pounds per square inch (psi). Press the vehicle information button until the DIC displays Front Tire kPa (P ...

Locking Rear Axle
Vehicles with a locking rear axle can give more traction on snow, mud, ice, sand, or gravel. It works like a standard axle most of the time, but when traction is low, this feature will allow the r ...

Cadillac Owner Privileges™
Emergency Fuel Delivery: Delivery of enough fuel for the vehicle to get to the nearest service station. Lock-Out Service: Service to unlock the vehicle if you are locked out. A remote unloc ...