See also:

Engine Oil Change
When the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system might not ...

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Safety
The CTS sedan performed well in crash tests conducted by the Insurance Institute for Highway Safety and the National Highway Traffic Safety Administration. It received the IIHS' 2012 Top Safety Pi ...