Total Complaints
6 filings
CHEVROLET C20 · model year
6 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1984CHEVROLETC20 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, 1 fire, 9 injuries, 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 C20 is fuel system, gasoline:storage:tank assembly with 1 filings, followed by power train:automatic transmission (1) and power train:axle assembly:axle shaft:seal (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 57 investigation files overlapping the 1984 C20, and 2 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.
Total Complaints
6 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY | 1 |
| POWER TRAIN:AUTOMATIC TRANSMISSION | 1 |
| POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL | 1 |
| SERVICE BRAKES, HYDRAULIC | 1 |
| TIRES:TREAD/BELT | 1 |
| ELECTRICAL SYSTEM | 1 |
STEERING WHEEL STARTING KEY TURNING ON MOTOR CAUSED FIRE IN WIRING AND SHORTED OUT THE FUSIBLE WIRE LINK--CHEVY DEALERS HAVE NO INFORMATION ON THE PARTS INVOLVED OR EVEN PARTS NUMBERS FOR THAT EQUIPMENT--THEY SAY THAT DOESN'T EXIST -I HAVE TWO TRUCKS WITH SAME EQUIPMENT--WAS THERE EVER A RECALL FOR THOSE VEHICLES? STARTER SWITCH-- THE VEHICLE WAS STATIONARY AND DIDN'T MOVE AT THAT MOMENT AT MY PLACE
Mileage: 93,151
THE FIRESTONE STEEL TEX RADIAL R4S LT 235/85R16 TIRE EXPERIENCED TREAD SEPARATION CAUSING DAMAGE TO THE FUEL TANK FILLER NECK WHICH WAS TORN OFF, CONSUMER WAS ABLE TO REGAIN CONTROL OVER THE VEHICLE AFTER BEING VERY UNSTABLE. *MJS
FRONT SEAL LEAK CAUSED CAR TO NOT GO FORWARD OR BACKWARD. TOOK TO MECHANIC, AND THEY REBUILT THE TRANSMISSION. HAD TO HAVE IT REPLACED 3 TIMES. CONSUMER FELT IT WAS THE FLUID DEXTRON 3 THAT WAS CAUSING THE PROBLEM. DUE TO OVERHEATED TRANSMISSION, BRAKES NO LONGER FUNCTION CORRECTLY. BRAKELINE FOR REAR BRAKES IS INCHES FROM TRANSMISSION DUE TO DEXTRON 3. *AK *ML
FRONT SEAL LEAK CAUSED CAR TO NOT GO FORWARD OR BACKWARD. TOOK TO MECHANIC, AND THEY REBUILT THE TRANSMISSION. HAD TO HAVE IT REPLACED 3 TIMES. CONSUMER FELT IT WAS THE FLUID DEXTRON 3 THAT WAS CAUSING THE PROBLEM. DUE TO OVERHEATED TRANSMISSION, BRAKES NO LONGER FUNCTION CORRECTLY. BRAKELINE FOR REAR BRAKES IS INCHES FROM TRANSMISSION DUE TO DEXTRON 3. *AK *ML
FRONT SEAL LEAK CAUSED CAR TO NOT GO FORWARD OR BACKWARD. TOOK TO MECHANIC, AND THEY REBUILT THE TRANSMISSION. HAD TO HAVE IT REPLACED 3 TIMES. CONSUMER FELT IT WAS THE FLUID DEXTRON 3 THAT WAS CAUSING THE PROBLEM. DUE TO OVERHEATED TRANSMISSION, BRAKES NO LONGER FUNCTION CORRECTLY. BRAKELINE FOR REAR BRAKES IS INCHES FROM TRANSMISSION DUE TO DEXTRON 3. *AK *ML
DESIGN FLAW OF THE DUAL TANKS AND PROTECTIVE SHIELDS, RESULTING IN SEVERAL INCIDENTS OF CORROSION AND LEAKAGE, DEFECT (REBATE)IN THE OUTSIDE GASOLINE TANKS, HOWEVER CONSUMER HAS NOT RECEIVED NOTICE. *MJS
Loss of motive power due to engine failure
Loss of Motive Power due to the Battery Energy Control Module
Electric Vehicle Battery Fires
Outboard Front Seat Belt Anchor Cable Failure
Fuel Line Leak
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.