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 ProblemsElectrical Level Ride System May Fail
The electronic level ride system may not work properly; this may result in the rear of the vehicle riding too high or too low. Our technicians tell us that a height sensor or exhaust valve failure are common issues with this system. Proper diagnoses will be necessary to confirm the exact fault.
An ignition coil may fail causing one of the cylinders to misfire. Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.
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.
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.