Problems · by component

2003 Cadillac Deville electrical system problems

52 owner complaints to NHTSA about the 2003 Cadillac Deville cite electrical system, 35% of all 148 complaints for this model year. NHTSA also lists 1 recall on this component.

Complaints
52
35% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“The contact owns a 2003 Cadillac Deville. The contact stated that the ignition switch seized. Occasionally, the contact was able to wiggle the switch for the ignition to operate. The contact stated that the ignition switch failed to turn or operate as needed. The vehicle was taken to an independent mechanic who was able to replace the ignition switch on three or four occasions. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 105,000.”
Owner complaint to NHTSAFiled Aug 25, 2026Electrical systemODI 11759347
“The contact owns a 2003 Cadillac DeVille. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The power steering was inoperable. In addition, the contact stated that the message that the key was not detected was displayed. The contact stated that the vehicle was recently serviced at the dealer under Manufacturer Recall Number: N140299. The contact stated that the failure had occurred before receiving the recall repair notification. The failure reoccurred after the recall repair was completed. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 200,000.”
Owner complaint to NHTSAFiled Mar 12, 2024Electrical systemODI 11576892
“I tried to explain to the dealership that unaware of the recall my cars breaks had failed and crashed my vehicle. They said the only thing that was affected was the key. I had told her that the result of my crash was from my breaks not working due to the recall. She told me no that that wasnt affected. I just want my car to be safe on the road as i have kids, and family that ride with me regularly.”
Owner complaint to NHTSAFiled Nov 20, 2021Electrical system, Service brakes, EngineODI 11441153
“TL* THE CONTACT OWNS A 2003 CADILLAC DEVILLE. THE CONTACT STATED THAT THE IGNITION SWITCH FAILED TO START THE VEHICLE AND THE KEY WAS HARD TO REMOVE FROM THE IGNITION. IN ADDITION, THE AIR BAG WARNING INDICATOR ILLUMINATED UPON ATTEMPTING TO START THE VEHICLE, WHICH WAS A SAFETY CONCERN. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE WHERE AN INDEPENDENT MECHANIC DIAGNOSED THAT A SECURITY MODULE FAILED AND THERE WAS A DISCONNECTION OF THE ELECTRICAL SYSTEM. THE VEHICLE WAS THEN TAKEN TO VININGS ENTERPRISES INC. (904 N TENNESSEE ST, CARTERSVILLE, GA 30120, (770) 382-2007), BUT THE FAILURE COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS UNAVAILABLE.”
Owner complaint to NHTSAFiled May 31, 2018Electrical system, Air bags, EngineODI 11098978
“IGNITION RECALL: ON 12 MARCH 2015 I TOOK MY 2003 CADILLAC DEVILLE INTO VALLEY CADILLAC ROCHESTER, NY AS PART OF THE GM IGNITION RECALL. PRIOR TO THAT MY VEHICLE WOULD JUST SHUT DOWN FOR NO REASON. AFTER HAVING MY VEHICLE SERVICED, I HIT A POT HOLE ON THE CITY STREET AND MY VEHICLE STOPPED RUNNING. LAST WEEK I WAS TURNING A CORNER AFTER COMING OFF THE FREEWAY OFF RAMP TURNING ON TO A CITY STREET AND MY VEHICLE STOPPED AGAIN AND EVERYTHING LOCKED UP. THE RECALL FIX DID NOT REPAIR MY VEHICLE. I AM CALLING VALLEY CADILLAC FIRST THING MONDAY TO GET IT SERVICED AGAIN.”
Owner complaint to NHTSAFiled Jan 17, 2016Electrical systemODI 10820714
“MY CAR TURNS OFF WHILE DRIVING. NO POWER FOR BRAKES, STEERING OR LIGHTS. I HAD RECALL FOR KEY ROTATION COMPLETED LAST WEEK BUT MY CAR TURNED OFF LAST NIGHT WHILE DOING 70 ON INTERSTATE. THE MOSSY OF PICAYUNE DEALERSHIP STATES THAT THE RECALL MAY NOT BE THE CAUSE BUT FROM WHAT I READ BEFORE TAKING CAR IN...THE PROBLEM WITH KEY ROTATION CAUSES CAR TO TURN OFF WITHOUT WARNING. I CONSIDER THIS A LIFE THREATENING PROBLEM AND NEED TO KNOW HOW TO PROCEED TO PREVENT BODILY HARM TO MYSELF AND POSSIBLY OTHERS. THE CAR HAD BEEN TURNING OFF PRIOR TO THE RECALL.”
Owner complaint to NHTSAFiled Dec 8, 2015Electrical systemODI 10809048

Showing 6 of 52 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page
02 —Related recalls

1 recall on this component

Electrical system: ignition

Free remedy

This defect can 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. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

Electrical systemReported Jun 23, 2014NHTSA 14V355000
Data from NHTSA Recalls API · synced Oct 28, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2003 Deville problem areas