1991 Cadillac Deville problems & reliability
87 owner complaints filed with NHTSA for the 1991 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.
7 complaints report injuries (8 injured).
Federal crash records (FARS 2020–2023): 1991 Cadillac Deville vehicles were involved in 1 fatal crash with 1 occupant death. 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 |
|---|---|---|
| Service Brakes, Hydraulic | 28 | 32% |
| Engine and Engine Cooling | 15 | 17% |
| Electrical System | 11 | 13% |
| Fuel System, Gasoline | 9 | 10% |
| Power Train | 7 | 8% |
| Vehicle Speed Control | 7 | 8% |
| Air Bags | 4 | 5% |
| Latches/locks/linkages | 3 | 3% |
| Seat Belts | 3 | 3% |
| Steering | 3 | 3% |
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
“Vehicle started leaking fuel underneath at the nylon fuel line. I had it repaired and it started leaking in a different location. Apparently the entire line is faulty and I cannot even seem to find a replacement. Fire hazard!”
Fuel/propulsion System · filed Oct 13, 2018
“I had no idea this vehicle was under recall I actually own a 1984 cadillac sedan deville, it had a gas leak which rotted out the timing chain casing, and knocked teeth down into the gear box. I just realized this car was recalled because of the fuel leaks and the rotting parts under the engine compartment. I paid…”
Engine · filed Aug 21, 2015
“Tl* the contact owns a 1991 cadillac deville. The contact stated that the vehicle's door locking mechanism was faulty, which allowed the doors to open independently while driving. The vehicle was taken to an independent mechanic who diagnosed that the locks needed to be replaced. The vehicle was not repaired. The…”
Electrical System · filed Feb 13, 2015
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- FUEL LINE FAILURE
Engineering Analysis EA93011 · opened May 3, 1993 · closed May 31, 1994
- FUEL LINE FAILURE
Preliminary Evaluation PE93007 · opened Feb 10, 1993 · closed May 3, 1993
- ENGINE COMPARTMENT FIRES
Engineering Analysis EA91019 · opened Mar 22, 1991 · closed Mar 25, 1992
- ENGINE COMPARTMENT FIRES
Preliminary Evaluation PE91016 · opened Nov 26, 1990 · closed Mar 22, 1991
Technical service bulletins
4 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1991 Cadillac Deville.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
130089009 · Service Bulletin/Repair Instructions · issued Sep 1, 2013
Cold start rattle noise (diagnosis/service procedure). *tw
577106A · Service Bulletin/Repair Instructions · issued Feb 1, 1997
Cold start rattle noise. *tw
577106A · Service Bulletin/Repair Instructions · issued Dec 1, 1996
Cold start rattle noise. *tw
577106 · Service Bulletin/Repair Instructions · issued Feb 1, 1995
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 1991 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 1991 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.