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#BS-1978-CADDEV-293D

1978 Cadillac Deville

Based on reports from 4 owners and 4 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

✅

Preliminary Verdict

Green Light

Based on 4 complaints, 0 crashes, 0 fires, and 4 recalls.

See full verdict with buy/skip conditions

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Mechanic Inspection Checklist

!Check the Wheels & TiresHIGH

2 owners reported wheels & tires issues.

!Inspect the Service Brakes, Hydraulic:foundation ComponentsMED

Look for symptoms of wear and premature failure

+ 3 more items in full checklistUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Wheels & Tires (2 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Wheels & Tires2 (50%)

Service Brakes, Hydraulic:foundation Components1 (25%)

Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings1 (25%)

1978 Cadillac Deville: Known Issues & Problem Areas

Wheels & Tires Issues

Wheels & Tires complaints account for 50% of all reports filed for the 1978 Cadillac Deville, with 2 owners filing complaints with NHTSA.

Service Brakes, Hydraulic:foundation Components Issues

Service Brakes, Hydraulic:foundation Components complaints account for 25% of all reports filed for the 1978 Cadillac Deville, with 1 owners filing complaints with NHTSA. Owners should pay attention to service brakes, hydraulic:foundation components-related symptoms during test drives and pre-purchase inspections.

Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings Issues

Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings complaints account for 25% of all reports filed for the 1978 Cadillac Deville, with 1 owners filing complaints with NHTSA. Owners should pay attention to fuel system, gasoline:delivery:hoses, lines/piping, and fittings-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (4 recalls)

77V162000Sep 1977

VISIBILITY:WINDSHIELD WIPER/WASHER

SOME OF THE INVOLVED VEHICLES FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 104, "WINDSHIELD WIPING AND WASHING SYSTEMS". THE WINDSHIELD WASHER BOTTLE ON THE INVOLVED VEHICLES MAY CRACK AND ALLOW WASHER FLUID TO DRAIN OUT.

77V200000

WHEELS:LUGS/NUTS/BOLTS/STUDS

THE REAR WHEEL MOUNTING BOLTS ON THE AFFECTED VEHICLES, ARE BRITTLE AND THEREFORE MAY FRACTURE. THIS BRITTLENESS IS DUE TO IMPROPER HEAT TREATMENT DURING MANUFACTURE. IF THE BOLTS BREAK, THE TIRE AND WHEEL ASSEMBLY MAY SEPARATE FROM THE VEHICLE.

78V189000Sep 1978

UNKNOWN OR OTHER

IF PAPER OR OTHER COMBUSTIBLE MATERIALS ARE PLACED IN THE INSTRUMENT PANEL ASHTRAY RECEPTACLE, THEY COULD BECOME IGNITED AND FLAMES FROM THE FIRE MAY REACH THE INTERIOR OF THE INSTRUMENT PANEL.

79V111000May 1979

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

THE INVOLVED VEHICLES WERE BUILT WITH AN ACCELERATOR PEDAL HAVING AN EXTENSION, OR RUBBER FLAP, AT THE BOTTOM OF THE PEDAL. THIS PEDAL FLAP COULD BE INADVERTENTLY DISPLACED BY A FLOOR COVERING AND WEDGED UNDER THE ACCELERATOR PEDAL IN A MANNER THAT CAN INFLUENCE THE THROTTLE SETTING AND INCREASE THE ENGINE IDLE RPM.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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The worst model year for the Cadillac Deville is the 2001 — worth knowing if you're cross-shopping years. The biggest problem area is engine.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 4 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 4 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Cadillac Deville Model Years

2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964

View all Cadillac Deville years →

1978 Cadillac Deville: Frequently Asked Questions

What is the most common problem with the 1978 Cadillac Deville?

The most commonly reported issue with the 1978 Cadillac Deville is related to the wheels & tires, with 2 complaints filed with NHTSA.

Is the 1978 Cadillac Deville reliable?

The 1978 Cadillac Deville has 4 complaints, 0 crash reports, and 0 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.

How much does it cost to fix 1978 Cadillac Deville problems?

Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.

Does the 1978 Cadillac Deville have any recalls?

Yes, the 1978 Cadillac Deville has 4 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Cadillac Deville problems start?

Mileage data is limited for this vehicle. The full report analyzes available data to identify failure patterns by mileage range.

What’s in the full report?

10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.

How is this different from free NHTSA data?

NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.

How is this different from Carfax?

Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.

What if the report isn’t useful?

100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.

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10 sections of AI analysis based on 4 owner reports. Know before you buy.

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