Total Complaints
2 filings
CHEVROLET G SERIES · model year
1999 CHEVROLET G SERIES
2 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999CHEVROLETG SERIES carries 2 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 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 G SERIES is service brakes, hydraulic:antilock/traction control/electronic limited slip with 1 filings, followed by engine and engine cooling (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 G SERIES, 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.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 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 | 1 |
| ENGINE AND ENGINE COOLING | 1 |
Recent Complaints
20070511ENGINE AND ENGINE COOLING
I AM THE OWNER OF A 1999 CHEVROLET VENTURE WITH 64,346 MILES ON THE ODOMETER. THE TEMPERATURE GAUGE WOULD SHOW AN INCREASE IN HEAT THEN DROP DOWN TO NORMAL. I CHECKED THE ANTIFREEZE LEVEL, WHICH SHOWED IT NEEDED TO BE FILLED. I ADDED THE PROPER COOLANT, DEXCOOL ANTIFREEZE MIXTURE OF 50-50. THE PROBLEM WAS FIXED FOR A FEW DAYS, BUT THEN IT RECURRED. THERE WAS NO LEAK OF ANY COOLANT THAT I COULD SEE ANYWHERE UNDER THE HOOD OR ON THE GROUND. THIS HAPPENED SEVERAL TIMES OVER A PERIOD OF TWO TO THREE WEEKS. I EXPLAINED THE PROBLEM TO MY MECHANIC. HE CHECKED IT OUT AND TOLD ME THAT THE UPPER AND LOWER INTAKE MANIFOLD GASKETS WERE DAMAGED AND ANTIFREEZE WAS GETTING INTO THE ENGINE. THE OIL DIP STICK WHEN CHECKED SHOWED A FLUID LEVEL ABOUT 6 INCHES ABOVE THE OIL-FULL LEVEL MARK. HE FOUND THAT THE NEW GASKETS HAD BEEN REDESIGNED BY GM, AND THAT MANY THOUSANDS OF PEOPLE HAD THIS PROBLEM WITH THE 3.4 V6 ENGINE. THE COST OF REPAIR WAS OVER $600.00. MY RESEARCH ONLINE SHOWED HUNDREDS OF COMPLAI
20001107SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
WHEN DRIVING REAR BRAKES DON'T WORK AT ALL. THERE IS NO PRIOR WARNING AT THIS POINT. DEALERSHIP IS AWARE OF PROBLEM. *AK
Compare 1999CHEVROLETG SERIES 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 G SERIES have?▼
The 1999 CHEVROLET G SERIES has 2 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 CHEVROLET G SERIES?▼
The most-complained component for the 1999 CHEVROLET G SERIES is SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP with 1 complaints. Other frequently reported areas include ENGINE AND ENGINE COOLING.
Is the 1999 CHEVROLET G SERIES 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.