Total Complaints
6 filings
CADILLAC DEVILLE · model year
1984 CADILLAC DEVILLE
6 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1984CADILLACDEVILLE carries 6 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 1 injury, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1984 DEVILLE is engine and engine cooling:engine:gasoline with 2 filings, followed by vehicle speed control (2) and electrical system:ignition (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 10 investigation files overlapping the 1984 DEVILLE, and 1 remain open. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
6
Complaints
0
Crashes
0
Fires
1
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| ENGINE AND ENGINE COOLING:ENGINE:GASOLINE | 2 |
| VEHICLE SPEED CONTROL | 2 |
| ELECTRICAL SYSTEM:IGNITION | 1 |
| FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS | 1 |
Recent Complaints
20041130FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
RECALL 93E019000 REGARDING FUEL SYSTEM OTHER PARTS: WHILE PULLING INTO A PARKING LOT VEHICLE STALLED. CONSUMER NOTICED FUEL WAS LEAKING ONTO THE ENGINE. A MECHANIC INFORMED THE CONSUMER THAT THIS VEHICLE WAS UNDER A RECALL. CONSUMER CONTACTED A LOCAL CADILLAC DEALER, WHO INFORMED THE CONSUMER THAT NOTHING WOULD BE DONE. *AK
Mileage: 90,995
19990318VEHICLE SPEED CONTROL
VEHICLE EXPERIENCED SUDDEN ACCELERATION RESULTING IN VEHICLE ACCIDENT WITH INJURIES.
19970325VEHICLE SPEED CONTROL
SUDDEN ACCELERATION, CAUSING ACCIDENT.
19961231ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
ANTI-FREEZE FOUND IN CRANKCASE, CAUSING COOLANT LIGHT TO COME ON.
19951113ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
PURCHASED VEHICLE USED WATER ON THE ENGINE NEED TO REPLACE ENGINE. TT
19950622ELECTRICAL SYSTEM:IGNITION
THE ENGINE IS MAKING TERRIBLE NOISE AND WILL NOT START AND IS NOT DRIVEABLE BECAUSE OF THE NOISE. PLEASE EXPLAIN. TT
Compare 1984CADILLACDEVILLE to Similar Vehicles
NHTSA Investigations 1 Open
PE24011Preliminary EvaluationOpen
Electronic Brake Module Component Failure
PE22006Preliminary EvaluationClosed
Rear-View Camera Failure
PE19001Preliminary EvaluationClosed
Roof Skin Separation While Driving
EQ11001EQClosed
IEE Passenger Sensing System Mats
EA07017Engineering AnalysisClosed
REAR DRIVETRAIN COMPONENT FAILURE
Frequently Asked Questions
How many complaints does the 1984 CADILLAC DEVILLE have?▼
The 1984 CADILLAC DEVILLE has 6 NHTSA complaints, 0 crashes, 0 fires, 1 injuries, and 0 deaths reported.
What are the most common problems with the 1984 CADILLAC DEVILLE?▼
The most-complained component for the 1984 CADILLAC DEVILLE is ENGINE AND ENGINE COOLING:ENGINE:GASOLINE with 2 complaints. Other frequently reported areas include VEHICLE SPEED CONTROL and ELECTRICAL SYSTEM:IGNITION.
Is the 1984 CADILLAC DEVILLE safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.