Cadillac STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Cadillac STS


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.

Vehicles with certain V6 engines may illuminate the Check Engine Light one or more of the following codes: P0011, P0014, P0021, P0024, P0341, P0346, P0336, or P0391. Our technicians tell us that some vehicles may require a powertrain control module (PCM) software update to correct this issue. Other vehicles may have excess camshaft end play on one or both cylinder heads which will need to be corrected using special procedures outlined by GM.

The rear axle pinion seal may leak causing fluid loss and possible internal rear end damage. Replacing the faulty seal will commonly correct this concern.

See More Problems 6

problem with gauges dropping out and picking up randomly then once doors locked would not open for a bit, now gauge showing hot, but engine is not hot, then with restart gauge shows all ok. It appears there is either a computer problem or a neutral or short circuit problem causing this intermitt...

See More Questions 158

Stay on top of the maintenance. Don't treat it like a comaro when its a Cadillac. Don't complain about the small things.. Can't speak for the other sts owners, but mine is fun to drive and looks "saf" (black on mat black) :) peace.

Great car. Drives and handles perfectly. Only complaint....Almost .No storage spaces.

my STS is a nice looking car but I have problems after problems one of the air suspension went out cost me 1000 dollar to replace it right now it's making noise. i beleive it's a electrical problems now. I will never buy another cadillac. it doesn't hold its value, The back bumper coming apart. and it hard to find someone to work on them beside the dealers.

See More Reviews 17