1994 Cadillac Deville problems & reliability
127 owner complaints filed with NHTSA for the 1994 Cadillac Deville. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
6 complaints report injuries (9 injured).
Federal crash records (FARS 2020–2023): 1994 Cadillac Deville vehicles were involved in 5 fatal crashes with 3 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine and Engine Cooling | 34 | 27% |
| Service Brakes, Hydraulic | 18 | 14% |
| Fuel System, Gasoline | 16 | 13% |
| Electrical System | 15 | 12% |
| Air Bags | 12 | 9% |
| Exterior Lighting | 8 | 6% |
| Power Train | 7 | 6% |
| Suspension | 7 | 6% |
| Visibility | 7 | 6% |
| Seats | 6 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Complaints by incident year
What owners report
“The trunk does not open from the inside or out, with key or without, malfunction or defect in assembly of vehicle. I took the auto to the dealership (turlock - smith chevrolet cadillac, inc.) and was charged for them to look at the problem and they attempted to break into the trunk without success. According to the…”
Structure · filed Jun 4, 2015
“We have a 1994 cadillac concours . The engine just shuts off sometimes. Restarts easily. We were almost broadsided due to this !!!!!!!!!!!! It doesn't do it all the time maybe once a day or maybe once every 4 days. *tr”
Electrical System · filed Mar 6, 2010
“Transmission failed at 63,000 miles. Vehicle had very "light" use for first 10 years. When purchased in 2004, only hat 47,000 miles. Well serviced, very well taken care of. *tr”
Power Train · filed Apr 20, 2008
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- ERRATIC TURN SIGNAL OPERATION
Preliminary Evaluation PE98005 · opened Feb 6, 1998 · closed Aug 27, 1998
- DASH TRIM SEPARATION
Engineering Analysis EA95025 · opened Aug 31, 1995 · closed Sep 30, 1996
- DASH TRIM PIECE SEPARATION
Preliminary Evaluation PE95025 · opened May 1, 1995 · closed Aug 31, 1995
- BRAKE LIGHT SWITCH
Investigation SQ94016 · opened Feb 7, 1994 · closed Mar 21, 1994
Technical service bulletins
34 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1994 Cadillac Deville. The 10 most recent:
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696E · Service Bulletin/Repair Instructions · issued Nov 22, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696D · Service Bulletin/Repair Instructions · issued Sep 5, 2019
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. Technician will use the radio to get the scrambled code. Technician will need to…
PIC4696C · Service Bulletin/Repair Instructions · issued May 31, 2018
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
130089009 · Service Bulletin/Repair Instructions · issued Sep 1, 2013
Engine oil leaks along the upper to lower crankcase joint. *tt
990601019 · Service Bulletin/Repair Instructions · issued Feb 1, 2006
4.0l l47, 4.6l ld8 l37 engine water pump cover p/n 12571913- thermostat loose. Also including model 2003 cadillac eldorado. *mr
01792 · Service Bulletin/Repair Instructions · issued Jan 1, 2004
Revised hvac blower motor installation procedure. *tt
030137002 · Service Bulletin/Repair Instructions · issued Nov 1, 2003
This bulletin is being issued to inform dealers of enhancements to crankcase, oil distribution plate and oil pan sealing by using rtv sealant. *tt
030601027 · Service Bulletin/Repair Instructions · issued Oct 1, 2003
Some customers may complain about a engine cold / knock / tick noise. *tt
990601010 · Service Bulletin/Repair Instructions · issued Jun 1, 1999
Concerns of door handles on white painted vehicles truning yellow. *yc
831704 · Service Bulletin/Repair Instructions · issued Oct 1, 1998
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1994 Cadillac Deville in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1994 Cadillac Deville?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.