Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety. Notes: The Trailblazer emerged from an "upscale trim line" of the Blazer, but there's nothing upscale about its transmission problems or its wonky, unpredictable headlights.


really awful
Crashes / Fires:
6 / 8
Injuries / Deaths:
6 / 0
Average Mileage:
50,456 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2002 Chevrolet Trailblazer electrical problems

electrical problem

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2002 Chevrolet Trailblazer Owner Comments (Page 1 of 6)

problem #105

Mar 042016


  • 155,000 miles


1. my drivers side window and door lock is shorted out and wont operate at all. While driving causing the window to remain down during a rain storm and impeding my visibility. I see they have recalls on other years for this exact same problem. 2. my seat belt cathes really tight and wont release casusing me pain. 3. my headlights regular beams keep coming loose and blowing out.ive had to fix this three times and I have only owned the vehicle for a week. Twice during driving at night once I am not sure when it blew. 4. the front suspension is having problems and I believe may be a recall issue. It makes loud noise like its cracking or breaking, while driving.

- Ft. Worth, TX, USA

problem #104

Dec 042012


  • 145,000 miles
The contact owns a 2002 Chevrolet Trailblazer. The contact stated that while driving at 10 mph, the oil indicator indicated low oil pressure and the check gauges warning light illuminated. The contact stated that there was also a loss of power steering. The vehicle was diagnosed by an independent mechanic but the failure was unknown. The failure recurred intermittently. The manufacturer was not notified of the failure. The failure mileage was 145,000. The VIN was not available.

- Kennewick, WA, USA

problem #103

Oct 162014


  • miles
I was simply trying to clean my windshield with the wiper blades. When I flicked the switch the car shut off. I immediately got over and turned truck back on. A couple days later I was leaving out for work when I tried to start the car, it stalled and I heard a hissing noise. I couldn't get it to turn over or make any noise other than hissing. The speedometer started moving back and forth erotically. The radio and power windows works but the engine would not turn over. I had it towed to my repair man and he told me there was a electric problem and to call the GM dealership for further assistance. The truck will not start up. There is a short. It shuts off constantly while driving and sometimes I have to push it to avoid oncoming traffic. It won't sped up past 60 without troubling the transmission. While driving sometimes the speedometer doesn't work at all or it jumps, around without reading my correct speed. When I try turn signals it cuts off. When I turn my lights on and off it hisses. Something has to be done. Its my only means of transportation and I really need to find a solution.

- Roseville, MI, USA

problem #102

Mar 042015


  • 192,000 miles


The contact owns a 2002 Chevrolet Trailblazer. The contact stated that while driving approximately 10 mph, a smoke odor emitted into the vehicle. The vehicle was driven to the residence and parked when the contact discovered black smoke coming from under the hood. The contact stated that although the key was not in the ignition the headlights would not go off and the vehicle sounded as if it was trying to start without the key in the ignition. The contact extinguished the fire with a fire extinguisher. The fire department came and filed a report. Prior to this incident the contact stated that while stopped at a red light with the brakes engaged, the engine rpms increased and the vehicle jerked without warning. The vehicle was not taken to the dealer. The manufacturer was not made aware of the failure. The approximate failure mileage was 192,000.

- Baton Rouge, LA, USA

problem #101

Sep 222002

Trailblazer 4WD 6-cyl

  • miles
2002 Chevrolet Trailblazer. Numerous problems associated with car. Windows don't come down, doors don't unlock, and other issues. The consumer stated when he turned the key in the ignition, the windows would not roll down, unless it was done manually. There was a locking and unlocking sound coming from the doors. The consumer was informed there was an issue with the wiring inside the doors. Also, the check engine light illuminated due to a small evap leak and after market fuel cap. The windshield wipers were inoperative, the instrument panel lights were flicking on and off, the inside dome light would not come on. Updated 04/13/15. Updated 07/20/15.

- South Windsor, CT, USA

problem #100

Dec 122012


  • 87,000 miles
The contact owns a 2002 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the low beam lights failed and the driver's side window failed to open. No warning lights illuminated. The vehicle was taken to the dealer. The technician diagnosed that the instrument cluster needed to be replaced. The manufacturer was made aware of the failure. The failure mileage was 87,000.

- Tampa, FL, USA

problem #99

Aug 062014


  • miles


Ignition does not start after driving vehicle. It is intermittent. Is there a recall for it?

- Penn Valley, CA, USA

problem #98

Jul 012013

Trailblazer 6-cyl

  • 145,000 miles
When I start my vehicle, the ABS and brakes lights go on, security light, and radio shuts off, or is on with no sound, the 4 wheel drive light flashes back and fourth between 4 wheel and 2 wheel drive, engine shuts off, while driving, then turns back on, this is the same problem all the recalled GM cars are having why is the 2002 Trailblazer not part of the recall?

- Cedar Rapids , IA, USA

problem #97

Jun 022014

Trailblazer 6-cyl

  • miles
Instrument cluster.

- Beaufort, SC, USA

problem #96

Apr 302014

Trailblazer 6-cyl

  • 176,920 miles
I was coming to a stop light my brakes did not want to work, then they did. I stopped my vehicle, my lights in my dash went out within a few seconds smoke started to roll from under my hood and cover my windshield. I immediately got out of the vehicle, and called 911. The vehicle was not running at this time, it stopped running. A bystander stopped to assist, he looked from the passenger front tire view and stated he seen flames that appeared to be blue. He wanted to lift the hood but I advised him not to do so, due to my job training I knew oxygen promotes fire. We got away from the vehicle, saint albans fire arrived on scene, the flames were out by the time they arrived, the car continues to smoke. The vehicle was moved to a lot, the key was put in the ignition by the fire department the dash lights did not work even with just turning the battery on. Triple H towing, towed the vehicle to davis smith's auto body. Geico is my insurer, I had full coverage however they will not cover stating it was mechanical failure. I have no without a vehicle, and no insurance funds to replace the vehicle. I have read online this is a common problem with this vehicle, I just do not want anyone to get hurt in a vehicle fire. Thank you for your time.

- Saint Albans, WV, USA

problem #95

Sep 122008

Trailblazer 6-cyl

  • 82,812 miles


I approached a stop light. As I stopped, the whole car shut down. I turned the ignition "off", put the car in "park", and turned the "ignition switch" to restart the vehicle. It did start. A couple days later the same thing happened. I took it to my dealer on Sept. 15 2008.they asked if I had a lot of stuff hanging on the key ring, I did not. They replaced the ignition switch. On Jan. 21, 2011, I was driving, and, after stopping, the car was running but would not engage (move). Had the car towed to dealership. They again replaced the ignition switch and another switch. On Feb. 11, 2011, I was at a "drive-up" window, my car just quit running. I had to push it off to the side and have it towed to the dealer. This time they again replaced the "ignition switch" along with a transfer case switch and a transfer case module. They said they had to replace all of them since there was no way to know for sure if it was still related to the "ignition switch". I feel all my issues were relate to the "ignition switch", and all repairs should have been paid by GM.they new they had an issue, or the dealer would not have asked about "excess weight hanging on the key fob".. I believe the "ignition switch issue" goes back farther, and affects even more models, than they are currently owning up to. I still have all paperwork pertaining to my repairs.

- Rockford, IL, USA

problem #94

Mar 252014

Trailblazer 6-cyl

  • 139,000 miles
I was driving my '02 Chevy Trailblazer on the interstate. The vehicle slipped and fishtailed a bit and I pressed the brakes to bring the vehicle to a stop. When the vehicle came to a stop, I tried to accelerate forward, but it would not move. The vehicle had not turned off on its own. I manually shut off the engine and restarted the vehicle and proceeded to move onto the shoulder of the interstate. I then noticed smoke and a small flame coming from under the hood near the front passenger tire/wheelhouse. The flames got bigger and soon it spread to the entire engine. The flames started near the right passenger wheelhouse and moved to the left driver wheelhouse. In about 20 minutes the entire vehicle was engulfed in flames. I have no idea how or why a fire started. I looked at forums online and many vehicles like mine have caught on fire while driving.

- Sterling Heights, MI, USA

problem #93

Feb 132014

Trailblazer 6-cyl

  • miles
My 02 Trailblazer I bought used 4 days after I bought it the right turn signal would flash quick if I hit the brake but would be normal without pushing break. Than my brake lights started flickering and stopped working except for the middle one. Now when I turn my right turn signal on my reverse lights come on left turn signal flickers almost all the taillights flicker when on. I did research and found a recall for that problem and was wondering if my vehicle is one that was recalled the number is- GM recall no. 04087.

- Rapid City, MI, USA

problem #92

Dec 012002


  • 10,000 miles
GM ignition switch recall needs to be expanded. My mother purchased a 2002 Chevrolet Trailblazer new. Approximately 5,000 miles into ownership, the car would "drop" various electrical components while driving down the road. For instance, while driving, the engine would continue to run, but the wipers would stop working, HVAC would turn off, air bag and ABS warning lights would illuminate, etc. Dealer had no idea how to fix. Eventually they replaced the ignition switch and the problem was solved. To my knowledge, GM never issued a recall, but I'm sure the issue is not isolated. These switches were unreliable across several vehicle lines, please investigate gmt 360 platform well.

- Lumberton, TX, USA

problem #91

Jan 012014

Trailblazer 6-cyl

  • 156,000 miles
All Trailblazer Tahoe and Envoy have the problem when you disconnect the battery it causes theses actuators to slam open and shut breaking them. The dealership is telling me almost 2000 dollars to fix this safety issue. This is a safety issue because I live in Michigan and depend on the heat to unthaw my windshield. Considering this is a manufactures problem and any mechanic knows to disconnect the battery to work on the vehicle. So what is this crap? do I have to retain a lawyer for this issue if someone could please contact me at [xxx] my name is [xxx] I would like to resolve this issue with a recall. Heat in winter I would say is a safety issue that needs to be recalled. I will be persistent with this. Thank you information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Brighton, MI, USA

problem #90

Sep 192013

Trailblazer 4WD 6-cyl

  • 208,565 miles
The contact owns a 2002 Chevrolet Trailblazer. The contact stated when the engine was started and the heat activated, the vehicle would stall. The vehicle was taken to a local mechanic for diagnosis. The contact was informed that there was an electrical issue with the vehicle. The vehicle was not repaired. The manufacturer was not notified of the incident. The approximate failure mileage was 208,565. Updated 12/03/13

- Orange, MA, USA

problem #89

Sep 272013

Trailblazer 6-cyl

  • 122,000 miles
While driving I noticed a burning smell outside of my vehicle but assumed it was coming from the area around me not my car. When I got to my destination I noticed smoke coming from under the left side of the hood and above the drivers side tire. I raised my hood and noticed smoke coming from around my fuse box. I had the car towed and have been told by my mechanic my fuse box and wiring harness burned. He also stated there could be other damaged related to this fire. The mechanic also asked if I had problems out of my headlights because the problem seemed to have started with the headlights. I have researched this since being given this information and electrical problems seem have been a problem with Trailblazers. I found several instances on this site and also online related to electrical problems on the Trailblazers. Complaint #10487846 is identical to mine and its a shame nothing gets done about these mechanical failures until there is a tragedy.

- Jackson, TN, USA

problem #88

Sep 052013


  • miles
Instrument cluster started to act erratically and then went out completely. No odometer, shift postion or gauges. Cruise control works fine. I have to use my gps to judge speed.

- Slidell, LA, USA

problem #87

Jan 012013


  • 90,000 miles
Above date & mileage is approximate. I am only able to activate driver's side window. No other windows operate from driver's door panel. I was told that there was a recall, but I never received any information about the recall. I have owned the car since around 2004.

- Mountain Top, PA, USA

problem #86

May 182013

Trailblazer 6-cyl

  • 170,000 miles
The contact owns a 2002 Chevrolet Trailblazer. The contact stated that while driving 65 mph, the brakes failed without warning. The contact was able to safely pull over to the shoulder where the vehicle started to smoke and caught on fire. The fire was contained by the local fire department. A fire report was not filed. There were no injuries. The vehicle was destroyed and was not inspected for the cause of the fire. The approximate failure mileage was 170,000.

- Gilbert , AZ, USA

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