1994-2005 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1994-2005 Cadillac DeVille has 17 documented known issues, with 8 rated critical. The most serious are Recall 03V238000: Fuel Tank Pressure Sensor Can Cause Fuel Leak and Fire, Key Ring Weight Can Knock the Ignition Out of Run - Recall 14V355000, Northstar 4.6L V8 Head Bolt/Head Gasket Failure ($3,000-$6,000 repair), Crankshaft Position Sensor Failure Causes Stalling, No-Start and P0335/P0336/P0385 ($150-$500 repair), Recall 02V227000: Front Seat Belt Retractors May Not Stay Locked When the Pretensioners Fire ($0-$0 repair), Recall 00V217000: Side Impact Sensor Module Can Deploy the Side Air Bags Without a Crash ($0-$0 repair), Recall 04V110000: Nylon Fuel Rail Can Degrade and Crack, Leaking Fuel Into the Engine Bay ($0-$0 repair) and 4T80-E Lower Valve Body and Fourth-Gear Clutch Failure Causes Slipping and Lost Overdrive ($600-$4,000 repair). Across all issues with published estimates, repair costs range from $50 to $6,000. DIY maintenance guides at au7o.io.
ELECTRICAL SYSTEM:IGNITION
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.
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
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.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1994-2005 Cadillac DeVille has 17 documented issues. The most frequently reported are: Recall 03V238000: Fuel Tank Pressure Sensor Can Cause Fuel Leak and Fire, Key Ring Weight Can Knock the Ignition Out of Run - Recall 14V355000, Northstar 4.6L V8 Head Bolt/Head Gasket Failure. Of these, 8 are rated critical and should be addressed promptly.
The 1994-2005 Cadillac DeVille has 17 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 8 issues are rated critical: Recall 03V238000: Fuel Tank Pressure Sensor Can Cause Fuel Leak and Fire and Key Ring Weight Can Knock the Ignition Out of Run - Recall 14V355000 and Northstar 4.6L V8 Head Bolt/Head Gasket Failure and Crankshaft Position Sensor Failure Causes Stalling, No-Start and P0335/P0336/P0385 and Recall 02V227000: Front Seat Belt Retractors May Not Stay Locked When the Pretensioners Fire and Recall 00V217000: Side Impact Sensor Module Can Deploy the Side Air Bags Without a Crash and Recall 04V110000: Nylon Fuel Rail Can Degrade and Crack, Leaking Fuel Into the Engine Bay and 4T80-E Lower Valve Body and Fourth-Gear Clutch Failure Causes Slipping and Lost Overdrive. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Cadillac DeVille issues range from $0 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
Reliability varies across model years of the Cadillac DeVille. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 1994-2005 Cadillac DeVille with 17 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
STEERING:GEAR BOX (OTHER THAN RACK AND PINION)
CERTAIN PASSENGER VEHICLES WERE BUILT WITH MISSING OR UNDER-TORQUED STEERING GEAR ATTACHMENT BOLTS. IF A BOLT IS MISSING, THE DRIVER MAY NOTICE UNEVEN STEERING RESPONSE OR UNUSUAL NOISES DURING TURNS.
SEAT BELTS:FRONT:RETRACTOR
CERTAIN PASSENGER VEHICLES CONTAIN DRIVER AND FRONT PASSENGER LAP AND/OR SHOULDER BELT RETRACTORS THAT MAY NOT REMAIN LOCKED UP AS DESIGNED DURING A CRASH IN WHICH THE BELT PRETENSIONERS DEPLOY.
SEAT BELTS:FRONT:BUCKLE ASSEMBLY
VEHICLE DESCRIPTION: PASSENGER VEHICLES, HEARSE, AND LIMOUSINES. SOME OF THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 209, "SEAT BELT ASSEMBLIES." THESE VEHICLES HAVE SEAT BELTS THAT MAY NOT MEET THE 30-POUND PUSH BUTTON RELEASE EFFORT REQUIREMENT OF THE STANDARD.
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NHTSA safety recall 03V238000 covers 2002-2003 Cadillac DeVille models built with the 4.6L V8 - including the funeral coach and limousine versions built on this platform, which are named explicitly in the campaign alongside the standard passenger cars. On these vehicles the fuel… Severity: high.
The 2000-2005 Cadillac DeVille is one of the vehicles included in GM recall 14V355000, filed under electrical system: ignition. The defect is that the ignition switch can be moved out of the run position by the weight on the key ring together with road conditions or another jarri… Severity: high.
The Cadillac Northstar 4.6L V8 is infamous for head gasket failure caused by the head bolts pulling out of the aluminum engine block. The original design used steel bolts threaded directly into the aluminum block without inserts, and the threads strip over time from heat cycling. Repairs typically run $3,000-$6,000. Severity: high.
The Northstar uses two crankshaft position sensors (commonly referred to as the upper/A and lower/B 24x sensors) mounted low on the block behind the oil filter adapter area. The original Siemens-sourced sensors are widely reported by DeVille owners to fail with age and heat, sett… Repairs typically run $150-$500. Severity: high.
GM recalled about 269,000 vehicles, including DeVilles built May 1999 through May 2002, because the driver and front passenger lap/shoulder belt retractors may not remain locked as designed during a crash in which the belt pretensioners deploy. If the retractor releases webbing a… Repairs typically run $0-$0. Severity: high.
GM recalled roughly 215,000 vehicles including 1999 Cadillac DeVilles built February 1998 through August 1999 because some side impact sensor modules have quality defects that can cause an inadvertent deployment of the driver or passenger side impact air bag with no collision. Si… Repairs typically run $0-$0. Severity: high.
GM recalled 1996-1997 Cadillac DeVille and 1995-1997 DeVille Concours (along with Seville, Eldorado and Oldsmobile Aurora) because the nylon tubing used in the original engine fuel rail can degrade and crack in service. A cracked rail leaks fuel into the engine compartment, produ… Repairs typically run $0-$0. Severity: high.
The 4T80-E four-speed used behind the Northstar develops two documented and related faults. The lower control valve body and its channel plate/gasket leak internal pressure, producing 1-2 shift delays, slips and flares with P0731 or P0732, and slipping or complete loss of fourth… Repairs typically run $600-$4,000. Severity: high.
All Northstar 4.6L engines eventually develop oil leaks from multiple locations: rear main seal, lower crankcase gasket, valve cover gaskets, oil pan gasket, and oil pressure sender. The rear main seal is the most expensive to address as it requires engine removal or separation f… Repairs typically run $200-$2,000. Severity: medium.
GM bulletin 01-06-01-011O covers 2024 and prior GM passenger cars and explains that oil use varies with driving, maintenance, leaks and engine condition. It requires each case to be evaluated and does not establish a universal Northstar defect. Its one-quart-per-2,000-mile guidel… Severity: medium.
Sunroof-equipped DeVilles route four drain tubes down the pillars. Owners document that GM retained the tubes with clips backed by double-sided tape that fails with age: the tube sags, pulls partly out of the rubber grommet where it passes through the fender/quarter, and water th… Repairs typically run $50-$500. Severity: medium.
On the 1994-1999 DeVille the instrument panel cluster's center display - speedometer readout, fuel level, gear position, odometer and the Driver Information Center message line - goes dim, drops pixels or blanks out entirely. The failure is traced to cracked and cold solder joint… Repairs typically run $150-$500. Severity: medium.
The 1994-1995 base DeVille used the 4.9L HT-series V8 (L26), not the Northstar that powered the Concours and every DeVille from 1996 on. The 4.9L does not share the Northstar's head bolt/head gasket problem, and treating it as if it does is the most common mistake made on these t… Repairs typically run $150-$900. Severity: medium.
On the Northstar-powered DeVille the starter motor sits in the engine valley beneath the plastic upper intake manifold, not on the outside of the bellhousing. When the starter solenoid or motor fails - reported symptoms are a single loud click with no crank, slow cranking on a kn… Repairs typically run $450-$1,200. Severity: medium.
The Bosch electronic brake/traction control module mounted on the hydraulic unit fails internally on high-mileage DeVilles. Owners report ABS, BRAKE and Traction Control warning lamps illuminated together - sometimes intermittently at first - a scan tool that cannot establish com… Repairs typically run $200-$900. Severity: medium.
DeVilles fitted with Electronic Level Control use coil springs at all four corners with air-bladder shocks at the rear that only trim ride height. The rubber bladders on the rear shocks dry out and split, the air lines and fittings leak at the crimps, and the compressor's air dry… Repairs typically run $300-$1,100. Severity: medium.
The blend door actuator motor fails, causing the HVAC system to blow only hot or only cold air regardless of the temperature setting. The DeVille uses multiple actuators for its dual-zone climate control, and a clicking or tapping noise from behind the dash is the telltale sign o… Repairs typically run $80-$300. Severity: low.
