Problems owners report
Complaints filed with NHTSA about the 2003 Cadillac Deville, by the system named in each complaint. One complaint can name several.
- Electrical system52
- Air bags25
- Engine16
- Power train14
- Steering12
- Engine and engine cooling10
- Visibility10
- Service brakes, hydraulic8
- Unknown or other7
- Vehicle speed control7
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 15 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Fatal crashes in the US
From 2020 to 2023, 25 2003 Deville vehicles were involved in crashes on US public roads in which someone died; 18 people died inside them, and 7 of the vehicles rolled over. This is a count, not a crash rate: it grows with the number of cars on the road.
NHTSA Fatality Analysis Reporting System (FARS), crash years 2020–2023 (public domain)
New York safety inspections
At its first New York inspection the 2003 Cadillac Deville failed the safety check 2.48% of the time — 18% more often than the average 2003 passenger car (2.11%). Median odometer at inspection: 96,658 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Fuel consumption
Official Canadian test results for 1 variant: combined 12.5 L/100 km (about 19 mpg US), CO₂ 288 g/km.
| Variant | City | Highway | Combined |
|---|---|---|---|
| DeVille · Full-size · Regular gasoline | 15.0 | 9.5 | 12.5 |
Litres per 100 km. Natural Resources Canada, Fuel consumption ratings (open.canada.ca) · Open Government Licence – Canada
Recalls in Canada
4 Transport Canada recalls for the 2003 Cadillac Deville.
| 2014246 23 Jun 2014 | Electrical On certain vehicles, a defect in the ignition switch could allow the switch to move out of the "run" position if the key ring is carrying added weight or the ve… |
| 2003165 2 Jul 2003 | Fuel System On certain Aurora, Bonneville SSEi, Devile and STS vehicles, the fuel tank pressure sensor is unusually susceptible to malfunctions causing excessive vacuum to … |
| 2003037 19 Feb 2003 | Airbag On certain vehicles, the driver's side air bag may not deploy as designed, resulting in reduced capability of the air bag to protect the driver. In addition, t… |
| 2002151 13 Aug 2002 | Airbag Certain vehicles may have a driver's side airbag inflator that could fracture at a weld during a deployment. Pieces of the inflator could strike and injure veh… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
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.
ON CERTAIN CADILLAC DEVILLE AND SEVILLE PASSENGER VEHICLES, FUNERAL COACHES, AND LIMOUSINES EQUIPPED WITH A V8 (4.6L) ENGINE, OLDSMOBILE AURORA PASSENGER VEHICLES EQUIPPED WITH A V8 (4.0L ) ENGINE, AND PONTIAC BONNEVILLE SSEI PASSENGER VEHICLES EQUIPPED WITH A SUPERCHARGED V6 (3.8L) ENGINE, THE FUEL TANK PRESSURE SENSORS ARE UNUSUALLY SUSCEPTIBLE TO MALFUNCTIONS. IF THE SENSOR MALFUNCTIONS, EXCESSIVE VACUUM CAN BE APPLIED DURING SELF-DIAGNOSTIC TESTING.
ON CERTAIN MINI VANS, PASSENGER AND SPORT UTILITY VEHICLES, SOME OF THESE VEHICLES HAVE A DRIVER'S SIDE AIR BAG THAT MAY NOT DEPLOY AS DESIGNED. IN ADDITION, THE AIR BAG INFLATOR COULD RUPTURE.
CERTAIN PASSENGER, MINI VANS, AND SPORT UTILITY VEHICLES HAVE AN AIR BAG INFLATOR ON THE DRIVER'S SIDE THAT COULD FRACTURE AT A WELD DURING A DEPLOYMENT.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Cadillac told its dealers about the 2003 Cadillac Deville: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 637295 | THIS MESSAGE STATES THERE WERE APPROXIMATELY 136 VEHICLES SHIPPED WITHOUT, INCLUDING THE ONSTAR, A SCREW ON THE ATENNA WHIP WITH THE TRUNK MATERIALS. *TT |
| 637275 | THIS MESSAGE IS IN REGARD TO A CHANGE MADE TO THE SEAT MEMORY SETTING FUNCTION. *TT |
| 634945 | INFORMATION ON INSPECTING THE JULIAN DATE CODE OF TORQUE CONVERTER CLUTCH PLUSE WIDTH MODULATED VALVE ASSEMBLY. *TT |
| 634719 | SERVICE ENGINE SOON OR CHECK ENGINE SOON MALFUNCTION INDICATOR LAMP BEING ILLUMINATED. *TT 02-06-04-024E NOT YET RECEIVED. *TT |
| 634300 | SOME CUSTOMERS WITH VEHICLES EQUIPPED WITH THE NAVIGATION SYSTEM MAY COMMENT ON AN INTERMITTENT LOUD HUM / BUZZ NOISE COMING FROM THE REAR DOOR SPEAKERS. *TT |
| 627842 | FIRM/HARSH REAR SEAT RIDE. *YH *AR |
| 11009156 | This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update. |
| 11007744 | This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 11007743 | This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature. |
| 11007208 | This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection. |
| 11006621 | Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers. |
| 11006421 | GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return. |
| 11004761 | This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up. |
| 11004557 | This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 11002312 | This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information. |
| 11000576 | This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process. |
| 10252735 | This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish. |
| 10252163 | XM Audio Traffic And Travel Link Availability And Operation. |
| 10251890 | This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up. |
| 10250775 | This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system. |
| 10249980 | This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Mot |
| 10249590 | This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim. |
| 10249579 | This PI bulletin advises the technician on the proper way to install the pistons in an engine. |
| 10249011 | This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage. |
| 10248761 | Unintended Ignition Key Rotation |
NHTSA manufacturer communications (public domain)