OnStar

See also:

Seat Position
To adjust the seat: - Move the seat forward or rearward by moving the horizontal control forward or rearward. - Raise or lower the front or rear part of the seat cushion by moving the fr ...

Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace i ...

V-6 Power
The CTS coupe's standard 3.6-liter V-6 moves this two-door smartly enough, but it doesn't necessarily feel like there's a 304-horsepower engine under the hood. With a curb weight of around 4,000 p ...