Total Complaints
5 filings
CHEVROLET SONOMA · model year
1999 CHEVROLET SONOMA
5 NHTSA complaints, 1 crash report for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999CHEVROLETSONOMA carries 5 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 1999 SONOMA is service brakes, hydraulic:antilock/traction control/electronic limited slip with 2 filings, followed by air bags:frontal (1) and parking brake (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 1999 SONOMA, 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.
5
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 |
| AIR BAGS:FRONTAL | 1 |
| PARKING BRAKE | 1 |
| FUEL SYSTEM, GASOLINE | 1 |
Recent Complaints
20070822FUEL SYSTEM, GASOLINE
07-2007 WENT TO HAVE A FUEL INJECTION SERVICE DONE ON THE TRUCK AND THE TRUCK KEPT SHUTTING OFF. COULD NOT HOLD PRESSURE. FILLED THE TANK LAST NIGHT AND WHEN SLOWING OR STOPPED THE TANK READS EMPTY. *TR
20050615PARKING BRAKE
DT: FROM THE DATE OF PURCHASE THE PARKING BRAKE FAILED. BRAKES HAVE BEEN READJUSTED SEVERAL TIMES. VEHICLE IS INSPECTED EACH YEAR, AND OWNER HAS TO REPAIR THE BRAKE SO IT CAN PASS INSPECTION. THIS COST LARGE AMOUNTS OF MONEY, AND GM WON'T COOPERATE WITH HIM.*AK
Mileage: 7,000
20050615SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
DT: FROM THE DATE OF PURCHASE THE PARKING BRAKE FAILED. BRAKES HAVE BEEN READJUSTED SEVERAL TIMES. VEHICLE IS INSPECTED EACH YEAR, AND OWNER HAS TO REPAIR THE BRAKE SO IT CAN PASS INSPECTION. THIS COST LARGE AMOUNTS OF MONEY, AND GM WON'T COOPERATE WITH HIM.*AK
Mileage: 7,000
20040122CrashAIR BAGS:FRONTAL
WHILE DRIVING VEHICLE WAS INVOLVED IN A HEAD ON COLLISION. UPON IMPACT, NEITHER OF THE AIR BAGS DEPLOYED. *AK
Mileage: 46,000
20020905SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
THE ABS BRAKING PUMP CONTINUES TO RUN WHILE THE VEHICLE IS TURNED OFF. THE DEALERSHIP IS AWARE OF THE PROBLEM. *JB *SCC
Compare 1999CHEVROLETSONOMA to Similar Vehicles
NHTSA Investigations 2 Open
EA25007Engineering AnalysisOpen
Loss of motive power due to engine failure
PE23022Preliminary EvaluationClosed
Loss of Motive Power due to the Battery Energy Control Module
PE20016Preliminary EvaluationClosed
Electric Vehicle Battery Fires
EA20002Engineering AnalysisClosed
Outboard Front Seat Belt Anchor Cable Failure
PE20011Preliminary EvaluationClosed
Fuel Line Leak
Frequently Asked Questions
How many complaints does the 1999 CHEVROLET SONOMA have?▼
The 1999 CHEVROLET SONOMA has 5 NHTSA complaints, 1 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 CHEVROLET SONOMA?▼
The most-complained component for the 1999 CHEVROLET SONOMA is SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP with 2 complaints. Other frequently reported areas include AIR BAGS:FRONTAL and PARKING BRAKE.
Is the 1999 CHEVROLET SONOMA 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.