OnStar Services

See also:

Drive Systems
All-Wheel Drive Vehicles with this feature always send engine power to all four wheels. It is fully automatic, and adjusts itself as needed for road conditions. When using a compact spare ti ...

Ride & Handling
Our test CTS had the optional performance suspension, and the car felt as firm as one of the high-performance V-Series versions that Cadillac sells, with harsh, jarring responses over bumps. It's ...

Why Safety Belts Work
When riding in a vehicle, you travel as fast as the vehicle does. If the vehicle stops suddenly, you keep going until something stops you. It could be the windshield, the instrument panel, or th ...