CHEVROLET TRAILBLAZER · model year

2001 CHEVROLET TRAILBLAZER

29 NHTSA complaints, 3 crash reports for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2001CHEVROLETTRAILBLAZER carries 29 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 3 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 2001 TRAILBLAZER is power train:automatic transmission with 3 filings, followed by engine and engine cooling:engine:gasoline (2) and service brakes, hydraulic:antilock/traction control/electronic limited slip (2). 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 2001 TRAILBLAZER. 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.

29
Complaints
3
Crashes
0
Fires
0
Injuries
0
Deaths

Total Complaints

29 filings

Crashes Reported

3 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

At or below the fleet median complaint volume.

Complaints by Component

ComponentCount
POWER TRAIN:AUTOMATIC TRANSMISSION3
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE2
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP2
ENGINE AND ENGINE COOLING2
AIR BAGS:FRONTAL2
POWER TRAIN2
TIRES1
EXTERIOR LIGHTING1
STRUCTURE1
ELECTRICAL SYSTEM:12V/24V/48V BATTERY1
UNKNOWN OR OTHER1
EQUIPMENT:APPLIANCE:AIR CONDITIONER1
TRAILER HITCHES1
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL1
SERVICE BRAKES, HYDRAULIC1

Recent Complaints

20160506STRUCTURE:BODY

DRIVER DOOR DOES NOT CLOSE. WE'VE HAD IT IN A FEW TIMES FOR REPAIR AS THE DRIVER'S DOOR HINGES WERE LOOSE. I WAS TOLD BY MY MECHANIC OF 13 YEARS THAT HE WILL NOT BE ABLE TO REPAIR IT AGAIN. THE LAST REPAIR DID NOT HOLD LONG, JUST ABOUT A WEEK. THEN I BROUGHT IT TO OUR LOCAL CHEVY DEALER FOR REPAIR AS THE DOOR WOULD NOT CLOSE ALL THE WAY AND BOUNCE AROUND ON BUMPS. I WAS TOLD THE CHEVY MECHANIC THAT THEY ARE NOT ABLE TO REPAIR THE DOOR, THAT I CAN TAKE IT TO THE BODY SHOP. MY PARENTS WERE THE ORIGINAL OWNERS. JUST THROUGH NORMAL DRIVING THE DOOR WOULD LOOSEN, AND DROP OUT OF ALIGNMENT. I HAVE HAD THE TRUCK IN FOR REPAIRS A FEW TIMES AS WELL. I HAVE HEARD FROM MY MECHANIC AND THE CHEVY MECHANIC THAT THIS IS NOT UNCOMMON FOR THIS PARTICULAR MODEL AND YEAR.

20160315POWER TRAIN

2001 TRANSMISSION PROBLEMS HAD TO BE FIXED. IN 2016 TRANSMISSION STARTED ACTING UP AGAIN, REVERSE WENT OUT AND WOULDN'T SHIFT PROPERLY IN 1ST, 2ND GEAR. HAD TO BE REBUILT AGAIN.

Mileage: 116,000

20141015STRUCTURE:BODY:TAILGATE

TL* THE CONTACT OWNS 2001 CHEVROLET BLAZER. THE CONTACT STATED THAT THE ACTUATOR FOR THE TAILGATE MALFUNCTIONED, PREVENTING THE TAILGATE FROM OPENING PROPERLY. THE CONTACT MENTIONED THAT DUE TO THE FAILURE, THE BLINKER AND BRAKE LIGHT BULBS WERE UNABLE TO BE REPLACED WHEN FAULTY. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN REPLACED THE REAR WINDOW, ACTUATOR AND THE BRAKE LIGHT BULBS. THE VEHICLE WAS REPAIRED. HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHO THEN REPLACED THE REAR GLASS AND ACTUATOR AGAIN. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THEY INFORMED THE CONTACT THAT THE FAILURE WAS NOT A SAFETY DEFECT ALTHOUGH THE BRAKE LIGHTS NEEDED TO BE REPLACED. THE APPROXIMATE FAILURE MILEAGE WAS 50,000.

Mileage: 50,000

20141015EXTERIOR LIGHTING:BRAKE LIGHTS

TL* THE CONTACT OWNS 2001 CHEVROLET BLAZER. THE CONTACT STATED THAT THE ACTUATOR FOR THE TAILGATE MALFUNCTIONED, PREVENTING THE TAILGATE FROM OPENING PROPERLY. THE CONTACT MENTIONED THAT DUE TO THE FAILURE, THE BLINKER AND BRAKE LIGHT BULBS WERE UNABLE TO BE REPLACED WHEN FAULTY. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN REPLACED THE REAR WINDOW, ACTUATOR AND THE BRAKE LIGHT BULBS. THE VEHICLE WAS REPAIRED. HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHO THEN REPLACED THE REAR GLASS AND ACTUATOR AGAIN. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THEY INFORMED THE CONTACT THAT THE FAILURE WAS NOT A SAFETY DEFECT ALTHOUGH THE BRAKE LIGHTS NEEDED TO BE REPLACED. THE APPROXIMATE FAILURE MILEAGE WAS 50,000.

Mileage: 50,000

20140811EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH

TL* THE CONTACT OWNS A 2001 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE BRAKE LIGHTS FAILED TO ILLUMINATE WHEN THE BRAKE PEDAL WAS DEPRESSED. THE DEALER STATED THAT THE BRAKE LIGHT SWITCH NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 60,000.

Mileage: 60,000

20130723SERVICE BRAKES

TL* THE CONTACT OWNS A 2001 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE PARKED, THE PARKING BRAKE WOULD NOT ENGAGE. THE CONTACT INSPECTED THE VEHICLE AND NOTICED A SPRING WITHIN THE PARKING BRAKE ASSEMBLY HAD FRACTURED, WHICH REQUIRED REPLACEMENT. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 110,000. *TR

Mileage: 110,000

20130723PARKING BRAKE

TL* THE CONTACT OWNS A 2001 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT WHILE PARKED, THE PARKING BRAKE WOULD NOT ENGAGE. THE CONTACT INSPECTED THE VEHICLE AND NOTICED A SPRING WITHIN THE PARKING BRAKE ASSEMBLY HAD FRACTURED, WHICH REQUIRED REPLACEMENT. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 110,000. *TR

Mileage: 110,000

20110926ELECTRICAL SYSTEM

TL- THE CONTACT OWNS A 2001 CHEVROLET TRAILBLAZER. THE CONTACT WAS DRIVING 50 MPH WHEN THE ABS WARNING AND CHECK ENGINE LIGHT ILLUMINATED INTERMITTENTLY. THE CONTACT ALSO STATED THAT WHEN DRIVING OVER A ROAD BUMP, THE HEADLIGHTS WOULD ILLUMINATE ON AND OFF. THE VEHICLE WAS TAKEN THE DEALER, BUT THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS 148,937 AND THE CURRENT MILEAGE WAS 149,854. KMJ CONSUMER IS HAVE MULTIPLE PROBLEMS WITH CAR. EN KAY AUTOMOVITE GROUP HAS CAR AIND WILL NOT GIVE IT BACK. UPDATED 11/10/2011 *LN

Mileage: 148,937

20091004SERVICE BRAKES, HYDRAULIC

WHILE COMING TO A STOP IN MY 2001 CHEVY TRAILBLAZER THE BRAKE SYSTEM (ABS) KEEPS ENGAGING CAUSING IT NOT TO STOP. I HAVE WENT THROUGH MANY STOP SIGNS AND INTERSECTIONS FROM NOT BEING ABLE TO STOP. CHANGED ALL THE BRAKES ,BLEED THE BRAKES AND PUT NEW SENSORS ON..STILL HAVING THE SAME ISSUES . I HAVE READ THAT GM KNOWS THAT THIS IS A FLAW IN THE DESIGN ,WHAT CAN BE DONE ABOUT IT? *TR

Mileage: 76,531

20080708POWER TRAIN

SERVICED MY '02 TRAILBLAZER AT DEALER BEFORE TRIP TO MOUNTAINS OIL CHANGED, COOLANT CHANGED , BRAKES CHECKED. RETURNED AND NEXT DAY NOTICED A LEAK UNDER DRIVERS SIDE BEHIND FRONT WHEEL. TOOK BACK TO DEALER AND TOLD THE TRANSMISSION BLEW AND NEED TO REPLACE FRONT PUMP COVER AND OTHER PARTS ASSOCIATED WITH IT AT $1700. *TR

Mileage: 74,700

20080101POWER TRAIN:AUTOMATIC TRANSMISSION

MY 2001 CHEVY TB HAS ALREADY HAD THE TRANSMISSION REBUILT AS THE RESULT OF A SUN SHIELD FAILURE AT 36K MILES. AS OF RIGHT NOW I AM AT 90K AND IT IS FAILING AGAIN. A QUICK SEARCH THROUGH EDMUNDS.COM SHOWS THIS IS NOT AN ISOLATED INCIDENT. CHEVY HAS DONE NOTHING TO RECTIFY THIS AND SINCE THEY WERE THE ONES WHO SUPPOSEDLY FIXED IT BEFORE, THEY HAVE OBVIOUSLY NOT ATTEMPTED TO ENGINEER AN ADEQUATE FIX FOR THIS FAILURE. IF THIS FAILS ON AN INTERSTATE THERE WILL BE A SERIOUS SAFETY ISSUE FOR ME AND MY FAMILY. *CN

Mileage: 94,000

20051206ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

2001 TRAILBLAZER CUTS OFF WHEN DRIVING. AFTER HAVING IT SERVICED FOUND THAT MASS AIR FLOW SENSOR NEEDS TO BE REPLACED FUSE AND HOSE ASSEMBLY. *TS *JB

20051130POWER TRAIN:AUTOMATIC TRANSMISSION

I HAVE 2 CHEVROLET TRAILBLAZERS AND THE TRANSMISSION HAS FAILED IN BOTH IN THE SAME WAY (BROKEN SUN SHELL). MY RESEARCH SHOWS THIS IS A VERY COMMON PROBLEM AND WAS FIXED BY GM STARTING IN 2003. *JB

Mileage: 80,000

20040901POWER TRAIN:AUTOMATIC TRANSMISSION

WHILE PULLING OUT ONTO A BUSY HIGHWAYTRANSMISSION JERKED AND BOGGED DOWN. WHEN TRYING TO ACCELERATE TO KEEP FROM GETTING REAR ENDED, I PUSHED THE ACCELERATOT BUT 1ST TO SECOND GEAR WOULD NOT ENGAGE. AFTER BACKING OF THE ACCELERATOR THE GEARS CAUGHT. NOW IT WILL NOT GO IN REVERSE AND 1ST TO 2ND AND 3RD TO 4TH HAS TROUBLE ENGAGING. *AK

Mileage: 39,000

20030825SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

WHILE DRIVING AT 25 MPH ON A RURAL ROAD CONSUMER CAME TO A STOP. THEN PRESSED THE BRAKES, AND CONSUMER FELT THAT BRAKES TRIED TO ENGAGE, BUT VEHICLE KEPT GOING ACROSS THE INTERSECTION. AFTER TRAVELING ANOTHER SIXTY FEET OR SO VEHICLE CAME TO A STOP ON ITS OWN. DEALER ACKNOWLEDGED THAT THERE WAS A FLAW DESIGN IN THE ABS SYSTEM.*AK

Mileage: 9,836

20030114ENGINE AND ENGINE COOLING

CONSUMER STATED THAT WHILE DRIVING AND WITHOUT WARNING OIL IS LEAKING FROM THE VEHICLE AND CAUSING THE CONSUMER TO REFILL MORE THEN OFTEN. CAUSE UNKNOWN. DEALER NOTIFIED. TS

20020910CrashTRAILER HITCHES

WHILE DRIVING APPROXIMATELY 58 MPH IN RAINY WEATHER WITH A TRAILER ATTACHED, TRAILER STARTED TO FISHTAIL WHILE GOING DOWN HILL. TRAILER HAD SWUNG AROUND AND BROKE FREE OF THE HITCH AND HIT THE SIDE OF TRUCK. TRUCK GRAZED AN ENBANKMENT, AND WENT INTO THE MEDIUM STRIP, HITTING ANOTHER VEHICLE HEAD ON. VEHICLE WAS TOTALED, AND DRIVER SUFFERED A HEAD INJURY AND FRACTURED VERTEBRATE. NEITHER AIR BAG DEPLOYED UPON THE FRONTAL IMPACT. PLEASE DESCRIBE DETAILS. *AK

20020910CrashAIR BAGS:FRONTAL

WHILE DRIVING APPROXIMATELY 58 MPH IN RAINY WEATHER WITH A TRAILER ATTACHED, TRAILER STARTED TO FISHTAIL WHILE GOING DOWN HILL. TRAILER HAD SWUNG AROUND AND BROKE FREE OF THE HITCH AND HIT THE SIDE OF TRUCK. TRUCK GRAZED AN ENBANKMENT, AND WENT INTO THE MEDIUM STRIP, HITTING ANOTHER VEHICLE HEAD ON. VEHICLE WAS TOTALED, AND DRIVER SUFFERED A HEAD INJURY AND FRACTURED VERTEBRATE. NEITHER AIR BAG DEPLOYED UPON THE FRONTAL IMPACT. PLEASE DESCRIBE DETAILS. *AK

20020722CrashAIR BAGS:FRONTAL

AT A 25MPH VEHICLE CRASHED AND AIRBAGS DID NOT DEPLOY. CAUSE UNKNOWN DEALER NOTIFIED.*AK

20020709ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

WHILE DRIVING VEHICLE WILL STALL OUT WITHOUT ANY WARNING.*AK

Compare 2001CHEVROLETTRAILBLAZER to Similar Vehicles

NHTSA Investigations

Frequently Asked Questions

How many complaints does the 2001 CHEVROLET TRAILBLAZER have?
The 2001 CHEVROLET TRAILBLAZER has 29 NHTSA complaints, 3 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2001 CHEVROLET TRAILBLAZER?
The most-complained component for the 2001 CHEVROLET TRAILBLAZER is POWER TRAIN:AUTOMATIC TRANSMISSION with 3 complaints. Other frequently reported areas include ENGINE AND ENGINE COOLING:ENGINE:GASOLINE and SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP.
Is the 2001 CHEVROLET TRAILBLAZER 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.