Total Complaints
3 filings
PLYMOUTH RELIANT · model year
3 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1981PLYMOUTHRELIANT carries 3 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, 0 injuries, and 1 fatality. 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 1981 RELIANT is structure:frame and members with 1 filings, followed by unknown or other (1) and equipment (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 5 investigation files overlapping the 1981 RELIANT. 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
3 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| STRUCTURE:FRAME AND MEMBERS | 1 |
| UNKNOWN OR OTHER | 1 |
| EQUIPMENT | 1 |
1981 PLYMOUTH RELIANT K-CAR. CONSUMER STATES ACCELERATOR PROBLEMS. *TGW THE CONSUMER STATED HIS PARENTS PURCHASED THE ABOVE MENTIONED VEHICLE. BUT, SINCE HE DID MOST OF THE DRIVING, HE ASKED THEM IF HE COULD INSTALL CRUISE CONTROL. HE THEN PURCHASED IT AND INSTALLED IT HIMSELF. THE UNIT RECEIVED ITS CONTROL PULSES FROM MAGNETS AROUND THE DRIVE SHAFT, WITH A MAGNETIC PICK UP SENSOR. AFTER ABOUT EIGHT MONTHS, THE UNIT HE INSTALLED STARTED TO ACT ERRATIC. SOMETIMES HE WOULD SET THE CRUISE SPEED, BUT WHEN HE APPROACHED TRAFFIC, HE TAPPED THE CANCEL BUTTON, THE VEHICLE WOULD CONTINUE TO SPEED UP. THERE WAS NO EFFECT WHEN APPLYING THE BRAKE PEDAL. THE CONSUMER THEN PURCHASED ANOTHER CRUISE CONTROL UNIT AND EXPERIENCED THE SAME PROBLEM.
1981 PLYMOUTH RELIANT K-CAR. CONSUMER STATES ACCELERATOR PROBLEMS. *TGW THE CONSUMER STATED HIS PARENTS PURCHASED THE ABOVE MENTIONED VEHICLE. BUT, SINCE HE DID MOST OF THE DRIVING, HE ASKED THEM IF HE COULD INSTALL CRUISE CONTROL. HE THEN PURCHASED IT AND INSTALLED IT HIMSELF. THE UNIT RECEIVED ITS CONTROL PULSES FROM MAGNETS AROUND THE DRIVE SHAFT, WITH A MAGNETIC PICK UP SENSOR. AFTER ABOUT EIGHT MONTHS, THE UNIT HE INSTALLED STARTED TO ACT ERRATIC. SOMETIMES HE WOULD SET THE CRUISE SPEED, BUT WHEN HE APPROACHED TRAFFIC, HE TAPPED THE CANCEL BUTTON, THE VEHICLE WOULD CONTINUE TO SPEED UP. THERE WAS NO EFFECT WHEN APPLYING THE BRAKE PEDAL. THE CONSUMER THEN PURCHASED ANOTHER CRUISE CONTROL UNIT AND EXPERIENCED THE SAME PROBLEM.
DEATH RESULTED FROM SIDE IMPACT, ATTORNEY FOR CLIENT. *AW
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.