Total Complaints
5 filings
CHEVROLET S/T BLAZER · model year
1999 CHEVROLET S/T BLAZER
5 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999CHEVROLETS/T BLAZER carries 5 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 S/T BLAZER is exterior lighting:hazard flashing warning lights:switch with 1 filings, followed by fuel system, gasoline:delivery:fuel pump (1) and service brakes, hydraulic (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 S/T BLAZER, 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
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 |
|---|---|
| EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:SWITCH | 1 |
| FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP | 1 |
| SERVICE BRAKES, HYDRAULIC | 1 |
| TIRES:SIDEWALL | 1 |
| TIRES | 1 |
Recent Complaints
20161218TIRES
I PURCHASE A SET OF COOPER TRENDSETTER SE TIRES 235/75/15 .AND I NOW HAVE HAD THEM REPLACED TWICE .BOTH TIMES IS WAS BECAUSE FOR SOME REASON THE TIRES DEVELOPED VERY BAD VIBRATION . I I NOW THINK I AM GOING HAVE TO HAVE THEM CHANGED AGAIN .I JUST WANT TO LET U KNOW THAT I HAVE NOT CAUSED THIS BY ABUSING THE TIRES BUT YET IT STILL HAPPENED
Mileage: 150
20160418TIRES:SIDEWALL
TL* THE CONTACT OWNS A 1999 CHEVROLET S/T BLAZER EQUIPPED WITH GOODYEAR WRANGLER 105S TIRES, SIZE: P235/75R15. WHILE THE VEHICLE WAS BEING WASHED, THE CONTACT NOTICED A LOT OF CRACKS ON THE SIDEWALLS OF ALL FOUR TIRES. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE FAILURE MILEAGE WAS 141,000 AND THE TIRE FAILURE MILEAGE WAS 10,000.
Mileage: 141,000
20100410SERVICE BRAKES, HYDRAULIC
BRAKE FAILURE DUE TO CORROSION OF BRAKE LINES. HAD TO REPLACE CALIPERS DUE TO PISTON FREEZING FROM CORROSION, AS WELL AS REPLACING ALL BRAKE LINES AFTER BRAKE PETAL TRAVELING ALL THE WAY TO THE FLOOR WHEN APPLIED. LINE WAS LEAKING ABOVE DRIVERS SIDE REAR WHEEL. WORK COMPLETED AT CHEVROLET DEALERSHIP. *TR
Mileage: 53,888
20080824FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
FUEL PUMP FOR 1999 CHEVY S-BLAZER 4 DR. MODEL. PUMP HAS BEEN REPLACED 4 TIMES WITHIN 8 MOS. FIRST LASTED 7 MOS. SECOND LASTED 4 DAYS, THIRD LASTED 2 WEEKS, SO FAR. WIRING HARNESS HAS BEEN REPLACED AS RECOMMENDED. UPON REPLACEMENT OF THIRD PUMP A NEW RELAY WAS INSTALLED AT THE RECOMMENDATION OF AUTO PARTS STORE. SECOND PUMP REPLACEMENT PRODUCED A TROUBLE CODE (CHECK ENGINE LIGHT) FOR EVAPORATIVE EMISSIONS, WHICH WENT AWAY WITH THE INSTALLATION OF THIRD PUMP. PARTS RETAILER IS STARTING TO GET HESITANT ABOUT REPLACING THIS PART, BUT HAS BEEN AS HELPFUL AS POSSIBLE. I THINK THEY ARE MORE EMBARRASSED ABOUT THIS THAN ANYTHING. PUMP WILL LOSE THE NECESSARY AMOUNT OF PRESSURE THAT THIS APPLICATION REQUIRES. COLD STARTS ARE FINE, BUT ONCE RUNNING AT NORMAL OPERATING TEMP. THE PUMP WILL NOT DELIVER ADEQUATE PRESSURE UNTIL ENGINE WILL EVENTUALLY STALL AND WILL NOT RESTART UNTIL TOTALLY COOLED. ORIGINAL PUMP QUIT ALTOGETHER AT 97,000 MILES, VEHICLE NOW HAS 104,000 MILES AND EACH REPLACEMENT PUMP
20071018EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:SWITCH
THE MULTI-FUNCTION TURN SIGNAL SWITCH IS DEFECTIVE AND CAUSES AN AUDIBLE CLICKING NOISE FROM THE DASH. THIS ALSO RESULTS IN THE EXTERIOR TURN SIGNAL LAMPS TO INTERMITTENTLY NOT FUNCTION, DEPENDING ON TEMPERATURE. THE ISSUE IS MORE PREVALENT IN COOLER, COLDER WEATHER. *JB
Mileage: 87,750
Compare 1999CHEVROLETS/T BLAZER 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 S/T BLAZER have?▼
The 1999 CHEVROLET S/T BLAZER has 5 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 CHEVROLET S/T BLAZER?▼
The most-complained component for the 1999 CHEVROLET S/T BLAZER is EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS:SWITCH with 1 complaints. Other frequently reported areas include FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP and SERVICE BRAKES, HYDRAULIC.
Is the 1999 CHEVROLET S/T BLAZER 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.