A loose or worn gas cap could be cause the Check Engine Light to illuminate.
Resources for the Repair and Maintenance of your 2009 Cadillac STS-V
2009 Cadillac STS-V
2009 Cadillac STS-V Problems
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Failure of brake components can be caused by contaminated brake fluid. To help prevent this the Brake fluid should be flushed at the very least every 60,000 miles.
The front turn signal and and daytime running light bulbs are prone to premature failure. Our technicians tell us that these bulbs can be very difficult to replace.
Our technicians tell us that the recommended spark plug life is 100k miles. The ignition coils are mounted directly on top of the spark plugs, as a result there are not longer any spark plug wires to fail.