2003 Cadillac Seville STS Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Cadillac Seville STS

2003 Cadillac Seville STS Problems

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.

The trunk pull down switch may fail causing the trunk lid not to close completely. Our technicians tell us that the failed switch can be replaced without changing the complete pull down motor assembly.

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2003 Cadillac Seville STS Questions

Car is hard to start, but when started it ran fine. Now it stalls, won't tack up even at full throttle. Acts like it's running out of gas. Then will spit and sputter, then straiten up and run fine again? HELP!

diagram available showing these locations,

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2003 Cadillac Seville STS Reviews

i love this car very fast, but ever seville i see including mine have a tail light out, on mine its not the bulb or the fuse ???

I just bought a 2003 STS and this car is the best car that I have ever owned.

I own a 1998 and 2003 Cadillac STS, both have had oil leaks and driver's seat heater failure at approximately 85,000 miles. The resealing of the crankcase and oil pan requires removing the transmission. Paid $1,500 each to reseal the engines. The seat heater requires pulling the cover and cushion back and splicing the broken wire feeding into the heating pad. I paid $245 to have a repair shop...

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