BumperScan
Powered byNHTSA|EPA|Community Reports
Your report: 3 of 4 steps complete75%
Car identifiedData collectedBasic analysisFull AI analysis

Free Preview

#BS-1978-CADSEV-6FD6

1978 Cadillac Seville

Based on reports from 3 owners and 2 recalls for this exact model.

Complaints
3
Crashes
0
Fires
0
Recalls
2
TSBs
0
✅

Preliminary Verdict

Green Light

Based on 3 complaints, 0 crashes, 0 fires, and 2 recalls.

See full verdict with buy/skip conditions

Preview: What's in your full report

Each card shows a real sample from your report — unlock all 10 sections from $1.20

Mechanic Inspection Checklist

!Check the Exterior Lighting:headlights:high/low Beam Dimmer SwitchHIGH

1 owners reported exterior lighting:headlights:high/low beam dimmer switch issues — failures commonly reported around 50K miles.

!Inspect the Fuel SystemMED
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: Exterior Lighting:headlights:high/low Beam Dimmer Switch (1 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

Exterior Lighting:headlights:high/low Beam Dimmer Switch1 (33%)
Fuel System1 (33%)
Lights1 (33%)

1978 Cadillac Seville: Known Issues & Problem Areas

Exterior Lighting:headlights:high/low Beam Dimmer Switch Issues

Exterior Lighting:headlights:high/low Beam Dimmer Switch complaints account for 33% of all reports filed for the 1978 Cadillac Seville, with 1 owners filing complaints with NHTSA. The median mileage at time of complaint is 50,488 miles, suggesting issues tend to surface around the 50K-mile mark.

Fuel System Issues

Fuel System complaints account for 33% of all reports filed for the 1978 Cadillac Seville, with 1 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.

Lights Issues

Lights complaints account for 33% of all reports filed for the 1978 Cadillac Seville, with 1 owners filing complaints with NHTSA. Owners should pay attention to lights-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

Get Report — From $1.20

Recall History (2 recalls)

77V243000Dec 1977

UNKNOWN OR OTHER

79V197000Aug 1979

FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL

DUE TO FUEL HOSE CONNECTION DETERIORATION, THE FUEL HOSE CONNECTION FROM THE UNDERBODY FUEL PIPE TO THE FUEL RAIL AT THE REAR OF THE ENGINE MAY LEAK GASOLINE.

Recall severity analysis & seller scripts

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

Unlock

The worst model year for the Cadillac Seville is the 1999 — 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. 3 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 2 recalls found for this vehicle.

Repair Cost Data

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

Other Cadillac Seville Model Years

20042003200220012000199919981997199619951994199319921991199019891988198719861985198419831982198119801979197819771976
View all Cadillac Seville years →

1978 Cadillac Seville: Frequently Asked Questions

What is the most common problem with the 1978 Cadillac Seville?
The most commonly reported issue with the 1978 Cadillac Seville is related to the exterior lighting:headlights:high/low beam dimmer switch, with 1 complaints filed with NHTSA.
Is the 1978 Cadillac Seville reliable?
The 1978 Cadillac Seville has 3 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 Seville 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 Seville have any recalls?
Yes, the 1978 Cadillac Seville has 2 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Cadillac Seville problems start?
Based on 1 complaints with mileage data, the median mileage at time of complaint is 50,488 miles. The highest concentration of reported issues occurs in the 30–60K mile range. The full report breaks down exactly which components fail at each mileage bracket.
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.
RaccoonEagleRoverCat

Get the Full 1978 Cadillac Seville Report

10 sections of AI analysis based on 3 owner reports. Know before you buy.

Get Full Report — From $1.20Money-back guarantee
Instant delivery|One-time purchase|No hidden fees