2003 Cadillac DeVille Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Cadillac DeVille
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2003 Cadillac DeVille ProblemsCar Won't Start and Security Light is On
Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.
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 QuestionsMy fan &air conditioning not working all of a sudden. (2 answers)
2003 Cadillac DeVille RecallsIgnition Lock Cylinder Concern
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.