2003 Cadillac DeVille Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Cadillac DeVille
2003 Cadillac DeVille Problems
One or more of the power window regulators (one in each door) may fail causing the window to fall into the door and not roll up.
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
The engine may develop oil leaks from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.
2003 Cadillac DeVille Questions
2003 Cadillac DeVille Recalls
Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Dealers will install two 13mm key rings and key insert into the vehicle's ignition keys to correct this concern.
GM recalls certain 2002-2003 Cadillac Devillle, Seville, Oldsmobile Aurora, and Pontiac Bonneville vehicles because the fuel tank pressure sensor may fail and cause a fuel leak. In the presence of an ignition source, a fuel leak may result in a fire. Dealers will replace the fuel tank pressure sensor.
On 130 vehicles, the driver's air bag may not deploy properly if needed in a crash. Also, the inflator could rupture. This could increase the risk of injury to the driver and other passengers if pieces of the inflator strike them. Dealers will inspect and install a new driver's air bag if needed. The recall began March 11, 2003. The GM recall number is 03008.
2003 Cadillac DeVille Reviews
I purchased my 2003 Deville DTS w/ 23000 miles on it. After having this car I highly doubt that I will ever purchase another Cadillac. The day I took the car home the window modulator went out, and since then two window regulators have stopped working, I have to replace my idle control valve, my interior lights won't come on, when I lock the doors with my remote the alarm goes off 10 min. after...
got the car wit 42,000 for 18,955 ran good now has 140,000 now starting to give me problems big ones every thing is starting to go at once. when i take it to the shop who ever fix it say these cars are time cusoming to fix and labor is costly parts are cheep but u must have money to get it fix because u brought it to me. but other than that till now 2003 deville is the best model i had out of ...
I purchased the car w/ 38,000 miles 2 years ago and I have 50,000 miles now. I was informed I need major transmission work. The car is in like new condition. I can't believe I have to spend that kind of $$ on a car w/ 50,000 miles. This is my 2nd Cadillac and most likely my last.