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.

Print this page 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.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
56,971 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 accessories - interior problems

accessories - interior problem

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2002 Chevrolet Trailblazer Owner Comments

problem #13

Jul 112013

Trailblazer 6-cyl

  • 98,911 miles


The indicated vehicle is my wife's. we bought it brand new on 09/26/2001. She has never towed anything and has city and highway miles. We have had numerous problems: Instrument cluster, rear tailgate strap, right rear brake light, (3) solenoids, spare tire dropdown and deteriorated transmission lines. I have repaired all of the previous out of pocket (except for the strap and the spare tire dropdown). Now, my wife was on the way to the bicycle store in her truck, with the bicycle on the back. She was making a turn onto the main road when she heard grinding and squealing, and the speed dropped drastically. Luckily, it was around 10am when there is not much traffic on the road. Reading numerous posts on this website, it is the same problem everyone has had, the transmission sun shell, and no reverse. With 98911 miles, I was about to spend the weekend changing the fluid in the transmission to keep it to spec. Now, I'm looking at a very expensive bill of which I cannot afford. $30 is easier than $1200. And, I'm a manufacturing engineer, so I check fluids regularly, even though the oil change stations check them. Seeing that there are problems with these components, I think that General Motors should produce a recall. I'm very disappointed that with all of the complaints, nothing has been done to remedy the situation. We will be calling the dealer that we bought the vehicle from first thing Monday morning.

- Clinton Township, MI, USA

problem #12

Feb 012005

Trailblazer 6-cyl

  • Automatic transmission
  • 15,000 miles
The contact owns a 2002 Chevrolet trailer Blazer. The contact stated that the instrument cluster panel was replaced three times for a recurring failure. The manufacturer advised the contact that the vehicle was not included in NHTSA campaign id number: 03V096000 (electrical system: Wiring: Interior/under dash). The vehicle was not repaired. The approximate failure mileage was 15,000 and the current mileage was 74,000. Updated 07/19/12 the consumer stated the instrument panel was replaced for the third time at a cost of $ 580. Updated 07/23/12

- Tucson , AZ, USA

problem #11

Dec 012009

Trailblazer 6-cyl

  • miles
Bought 2002 Chevrolet Trailblazer which operated fine until 2 yrs ago. First, the speedometer goes nuts, the needle registers faster speeds than car is going. Some days it would work, some days it would not. Now it points past 120 mph, directly downwards, stuck there and does not move at all. Sitting still in my driveway the speedometer shows its going over 120 mph. The gas gauge goes nuts next. The needle goes past full and back around to the gas pump icon and stays there. The tachometer followed suit doing the same thing and indicating rpms past the 9000 range and doesn't settle back at zero with engine off. And now the temp gauge is showing 200 - 250 degrees when the engine is started. As far as I can tell the voltage and battery gauges are still showing normal readings - so far. Am I speeding, is my engine about to blow up, or am I going to run out of gas? I have no way of knowing if I am driving the speed limit or unknowingly speeding, no idea how much gas is in the tank, unaware that my engine is revving up into a dangerous range or about to blow up; or if my engine is dangerously overheating. I depend on the instrument cluster to alert me to those dangers. There should have been a recall on these failing instrument clusters a long time ago but although hundreds have complained GM says they won┐T fix this issue on the Trailblazer. They don┐T care that we Trailblazer owners must drive our vehicles without working instruments. This situation is dangerous.

- Hartselle, AL, USA

problem #10

Nov 102010


  • miles


Speedometer, gas, and tach gauge stopped working, would work some and then gradually stop working all together, speedometer gets stuck on approx 20mph or 120mph, gas gauge off meter.

- Mechanicsville, VA, USA

problem #9

Dec 212010

Trailblazer 4WD 6-cyl

  • 185,000 miles
Instrument dash cluster does not work upon start. No battery, oil, gas, speedometer. Needles do not move at all.

- Minneapolis, MN, USA

problem #8

Dec 022010

Trailblazer 6-cyl

  • 128,000 miles
Chevy Trailblazer 2002 instrument panel malfunction: Oil gauge drops to zero when idling- is intermittent. I thought the oil pump was failing and paid to have towed to mechanic. They said that instrument panel has glitch in it so you cannot tell if oil pressure is accurate. Car is running fine.

- Bossier City, LA, USA

problem #7

Dec 192007

Trailblazer 6-cyl

  • Automatic transmission
  • 82,000 miles


The electrical gauges on our 2002 Chevy Trailblazer did not function properly when the fan clutch failed, leading to engine overheating. The overheated engine blew the head gasket before the engine itself blew up. My husband was had just backed out of the driveway and had driven about 200 yards when this happened. It is important to note that warning systems malfunctioned: There were no lights, bells or any indication that complete engine failure was imminent. There wasn't even the odor of an overheated engine. If this had happened on our local freeway I could be suing GM over my husband's injury or death.

- Huntington Beach, CA, USA

problem #6

Nov 242007

Trailblazer 4WD

  • Automatic transmission
  • miles
The speedometer no longer displays the correct speed. It will still display the speed but is very different than the actual speed of the vehicle. When the vehicle is in park the needle will be well below 0.

- Laconia, NH, USA

problem #5

Oct 042007

Trailblazer 4WD 4-cyl

  • Automatic transmission
  • 55,000 miles
Transmission has failed at 55,000 miles, not driving car but was about to run errands. Have had to replace power steering block, alternator, starter, tail lights, instrument panel, radio and electric on a car that is just over 5 years old. The instrument panel, power steering block and transmission are all not under warranty.

- Germantown, MD, USA

problem #4

Mar 122007

Trailblazer 6-cyl

  • Automatic transmission
  • 71,000 miles
The contact owns a 2002 Chevrolet Trailblazer. The dashboard panel illuminated intermittently. The failure prevented the dashboard from displaying the speedometer and tachometer. Occasionally, the tachometer and speedometer displayed incorrect speeds. The dealer stated that the vehicle needed an instrument panel cluster, and mentioned recall # 03V096000 for the electrical system: Wiring: Interior/under dash. Although this vehicle was excluded from the recall, the contact did not feel obligated to pay for the repairs since General Motors was aware of the recall. The current mileage was 72,449, and failure mileage was 71,000.

- Hampton, VA, USA

problem #3

Feb 012007


  • miles


2002 Chevrolet Trailblazer with problems with car radio customer wants reimbursement for repairs* some type of electrical problem caused a loud pop to come through the speakers. The caused the radio to short out and the speakers to blow. The radio and speakers had been replaced several times. The amplifier also had to be replaced. The vehicle has been taken to the dealer on numerous occasions but they have been unable to correct the problem. The middle seat belt in the second row locked up as soon as it was fastened into the buckle. When the defroster was used the consumer heard a clicking noise. The dealer replaced the mode actuator and mode valve per tsb 04-01-38-002. The quarter panel on the roof seam sealer cracked and was rusted. The pull down strap on the rear hatch broke. The sway bar broke. A grinding noise was heard coming from the left front wheel when making sharp left turn. The dealer determined that suspension was misaligned and caused shield to touch rotor. The instrument cluster gauge was inoperative. The rear wiper did not touch the rear windshield. There was a high pitched noise coming from the right side tire whenever in motion. The dealer indicated it was improperly sealed.

- Chapmanville, WV, USA

problem #2

Jan 082007

Trailblazer 6-cyl

  • Automatic transmission
  • 55,000 miles
- the contact owns a 2002 Chevrolet Trailblazer. The transmission was slipping gears. The contact stated that he had the original transmission replaced at 8000 mile by an authorized dealer, and now was experiencing the same difficulty with the gears slipping down speeds, and the transmission not engaging. The contact said that this happened often at 45 mph, and the weather has not been a factor. The contact stated that instrument panel lights turned off for a day on 1-3-07, and when the instrument panel lights turned back on the air bag light stayed on. He has had the vehicle fixed three times for the instrument panel lights turning on and off.

- Brownstownship, MI, USA

problem #1

Nov 092006

Trailblazer 4WD 4-cyl

  • Automatic transmission
  • 50,707 miles
: the contact stated the instrument panel was inoperable. There was a NHTSA recall, #03V096000, regarding the electrical; wiring; interior/under dash. The vehicle was not included in the recall due to the VIN.

- Madison, WI, USA

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