Total Complaints
3 filings
GMC G20 · model year
1993 GMC G20
3 NHTSA complaints, 1 crash report for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1993GMCG20 carries 3 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 0 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 1993 G20 is service brakes, hydraulic:antilock/traction control/electronic limited slip with 2 filings, followed by power train:automatic transmission (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 2 investigation files overlapping the 1993 G20. 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.
3
Complaints
1
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
1 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 |
|---|---|
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 2 |
| POWER TRAIN:AUTOMATIC TRANSMISSION | 1 |
Recent Complaints
20031103POWER TRAIN:AUTOMATIC TRANSMISSION
AUTOMATIC TRANSMISSION SUN GEAR HAS A HIGH RATE OF FAILURE, PER DEALERSHIP. WHEN IT FAILS REVERSE GEAR MALFUNCTIONS, AND THEN ALL OTHER GEARS FAIL TO FUNCTION. DEALERSHIP INDICATED THAT TRANSMISSION NEEDED REINFORCEMENT BY USING THICKER MATERIAL FOR THE COLLAR SPINE. THIS PART FAILED TWICE WITHIN 11,000 MILES. *AK
Mileage: 69,000
20000203CrashSERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
WHILE DRIVING ON WET ROAD TRAVELING 35MPH, APPLIED BRAKES, AND THERE WERE NO BRAKES. WENT STRAIGHT THROUGH AN INTERSECTION. ON HIGHWAY AT 45-50MPH AND EXITING OFF THE RAMP, HIT GRAVEL A VEHICLE STOPPED AHEAD. CONSUMER HAD TO QUICKLY APPLY BRAKES. BUT, AGAIN THERE WERE NO BRAKES. CONTACTED DEALER, THEY COULD NOT FIND THE CAUSE. *AK
19990722SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
WHEN APPLYING THE ABS BRAKES ON DRY PAVEMENT PEDAL NEARLEY WENT TO THE FLOOR, CAUSING EXTENDED STOPPING DISTANCE . PLEASE GIVE ANY FURTHER DETAILS. *AK
Compare 1993GMCG20 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 1993 GMC G20 have?▼
The 1993 GMC G20 has 3 NHTSA complaints, 1 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1993 GMC G20?▼
The most-complained component for the 1993 GMC G20 is SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP with 2 complaints. Other frequently reported areas include POWER TRAIN:AUTOMATIC TRANSMISSION.
Is the 1993 GMC G20 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.