Problems · NHTSA complaints

2001 Chevrolet Blazer problems

Owners filed 331 complaints about the 2001 Chevrolet Blazer with NHTSA between Dec 2000 and May 2023. The most-cited component is exterior lighting (68).

Complaints
331
Filed with NHTSA
Crashes
36
Reported by owners
Fires
5
Reported by owners
Injuries
22
People reported injured
Deaths
2
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Exterior lighting68
  2. Suspension40
  3. Electrical system40
  4. Service brakes, hydraulic37
  5. Power train31
  6. Fuel system, gasoline26
  7. Air bags23
  8. Engine and engine cooling23
  9. Structure16
  10. Visibility15
  11. Steering14
  12. Equipment13
  13. Seat belts11
  14. Vehicle speed control10

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20001
200149
200263
200341
200440
200539
200623
200716
200810
20098
201015
20114
20124
20130
20142
20158
20162
20171
20180
20191
20201
20211
20221
20231

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Exterior lighting

68 reports1 crash2 related recalls
“MY 2001 BLAZER'S BRAKE LIGHTS STOPPED WORKING DURING A RECENT DRIVE, AND ANOTHER DRIVER WAS KIND ENOUGH TO POINT THIS OUT AT A STOPLIGHT. THE NEXT DAY THE BRAKE LIGHTS WORKED AGAIN, BUT REMAINED ON AFTER I SHUT OFF THE ENGINE. MY MECHANIC WAS ABLE TO DETERMINE THE PROBLEM WAS THE MULTIFUNCTION SWITCH ON THE STEERING COLUMN. THIS WAS A KNOWN ISSUE (GM RECALL NUMBER 01073) AND GM RECALLED A NUMBER OF THE SAME MAKE AND MODEL OF VEHICLES, BUT MY BLAZER'S VIN WAS NOT INCLUDED IN THE OFFICIAL RECALL.”
Owner complaint to NHTSAFiled Dec 9, 2015Exterior lightingODI 10809342

Suspension

40 reports2 crashes
“Chevy Blazer has low milage. However, it still has several electrical issues radio at engine start goes to loudest point and car seats move backwards at awkward times which can cause an accident. Suspension very off guard, truck drifts to the sides while driving and makes an awkward sound when turning steering wheel. The complete break / steering system is off and may cause an accident if not properly take care right away. I have no money to do this big job. Please remediate.”
Owner complaint to NHTSAFiled May 27, 2023Suspension, Electrical system, Service brakesODI 11524128

Electrical system

40 reports2 crashes4 fires
“I HAVE A 2001 BLAZER THAT KEEPS POPPING UP A CHECK ENGINE LIGHT CODES.I.E P0301,P0753,P0756,P0758. I HAVE HAD THESE PARTS REPLACED TWICE IN THE LAST FEW MONTHS. MECHANIC SAID IT WAS RELATED TO THE ELECTRICAL SYSTEM. THE CODES COME BACK AFTER DRIVING FOR ABOUT 100 MILES.”
Owner complaint to NHTSAFiled Nov 17, 2020Power train, Electrical systemODI 11374977

Service brakes, hydraulic

37 reports7 crashes
“THE "ABS" AND "BRAKE SYSTEM" LIGHTS STAY COME ON AND STAY ON AT DIFFERENT TIMES. I HAVE HAD THE BRAKES CHECKED AND THE SYSTEM CHECKED AND THEY ARE COMING ON FOR NO REASON. *TR”
Owner complaint to NHTSAFiled Jun 20, 2008Service brakes, hydraulic, Electrical systemODI 10231705

Power train

31 reports1 crash
“TRANSMISSION COOLER LINES BETWEEN THE RADIATOR AND TRANSMISSION ARE CORRODED AND PITTED. THE LINES ARE INSTALLED OVER THE EXHAUST CATALYTIC CONVERTER. THERE IS TRANSMISSION FLUID LEAKING FROM THE LINES, WHICH IS DRIPPING ONTO HOT EXHAUST COMPONENTS AND BURNING, CREATING A FIRE HAZARD. THESE LINES APPEAR TO BE STAINLESS STEEL, WHICH SHOULDN'T BE CORRODING. THE LINES SHOULD NOT BE IN SUCH CLOSE PROXIMITY TO EXHAUST COMPONENTS. WHEN THE VEHICLE IS NOT RUNNING/IN MOTION, TRANSMISSION FLUID POOLS ON THE GROUND UNDER THE VEHICLE. IN MOTION, THE FLUID IS BEING BLOWN REARWARD, COATING THE UNDERCARRIAGE AND EXHAUST.”
Owner complaint to NHTSAFiled Dec 1, 2016Power trainODI 10928947

Fuel system, gasoline

26 reports
“The contact's girlfriend owns a 2001 Chevrolet Blazer. The contact stated that fuel was leaking from the top of the fuel tank. There was an abnormal fuel odor detected. Additionally, the vehicle was slow to start. There were no warning lights illuminated. The contact called the local dealer however, the vehicle was not diagnosed nor repaired. The manufacturer was not contacted. The contact was concerned about the fuel odor and a possible fire. The failure mileage was unknown.”
Owner complaint to NHTSAFiled Jun 29, 2021Fuel system, gasolineODI 11422764
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.