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:
2 / 1
Injuries / Deaths:
11 / 0
Average Mileage:
59,453 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 transmission problems

transmission problem

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2002 Chevrolet Trailblazer Owner Comments (Page 7 of 9)

« Read the previous 20 complaints

problem #43

Jul 142005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 115,000 miles


My vehicle is a 2002 Chevrolet trail Blazer of which I purchased new. Since day one the vehicle has been plagued with a multitude of problems. It has had an engine replacement, clutch fan ($620), tail lights, HVAC controls $(200), exhaust manifold, recall items and now finally a transmission failure where the sun shell/gear let go costing me ($1858.03). Fast forward to today just 3 months after the transmission was "completely overhauled), the valve body id failing where the dealer has told me that "is not part of the 12 month, 12,000 warranty on the transmission."

- Franklin, CT, USA

problem #42

Jul 092005

Trailblazer 6-cyl

  • Automatic transmission
  • 99,550 miles
Transmisson failure / no early warning signs

- Killeen, TX, USA

problem #41

Jun 212005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 56,000 miles
Transmission went out on 2002 Chevrolet Trailblazer.

- Lafollette, TN, USA

problem #40

Jun 252005

Trailblazer 6-cyl

  • Automatic transmission
  • 66,000 miles


I own a 2002 cheverolet Trailblazer with 66 thousand miles and have had the transmission go out.

- Queen Creek, AZ, USA

problem #39

Jun 162005

Trailblazer 6-cyl

  • Automatic transmission
  • 55,700 miles
While driving to lax airport after rounding curve to get off on airport ramp, tranmission failed. Vehicle would not move. Local airport police assisted to get me towed ($45) to police lot. Notified onstar and was towed to closest Chevrolet dealer, albertson Oldsmobile Chevrolet in culver city, California. After three days the dealer had not even looked at the vehicle. I then ha car towed to aamco transmission in orange California where after less than 24 hours I was informed transmission was completely burned up. A pump had failed and the inside of the transmisson assembly was filled with metal shavings. In October of 2003 the transmission had failed and the car had to be towed to gateway Chevrolet in la mirada, California. Car was repaired. I have also had many other problems with this vehicle including brake lights, windshield wipers, heating & air conditioning system.

- Placentia, CA, USA

problem #38

Jun 092005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 94,000 miles
Transmission failture

- Northfield, OH, USA

problem #37

May 262005

Trailblazer 8-cyl

  • Automatic transmission
  • 51,400 miles


1. my car broke down on my way to work, approximately 27 miles into the trip. I turned onto a side street, and when I started accelerating, a loud screeching sound started as I entered 2nd gear. I immediately pulled over. 2. my husband gently drove it to the dealer and they assumed it was the sun shell spline. However, in order to find out, they wanted to charge me $455 to pull the transmission. We decided against it, fearing the high cost of repair and took it to a local mechanic. 3. mechanic replaced the sun shell spline, pressure control solenoid and manifold pressure switch. Cost = $1,222.66 + $84 diagnostic at dealer. We have the sun shell spline. Repairs were completed on June 2nd. Then, on June 5, the condensor on the A/C went out. Took it to the dealer because Chevy stated that was the only way they could help me (no help on the transmission). Cost to repair = $261.34.

- Laguna Park, TX, USA

problem #36

Apr 192005

Trailblazer 6-cyl

  • Automatic transmission
  • 80,000 miles
Transmissions went out weeks after hearing sounds underneath the car, and hearing a loud poping sound. I had all of the recall problem, plus problems with my heating and cooling system controls going out on the high setting, problems with embrassasing squeaking noises coming from underneath the car. What really hurt me so bad is that the place where my husband and I work we build parts for General Motors every day and worked there fo 22 years trusting that the first car that we bought brand new would be a GM product that I would be at least heard from the company and having them be concerend enough to help pay for my repairs or something, I only had the car for 2 and a half years.

- Water Valley, MS, USA

problem #35

Mar 102005

Trailblazer 4WD

  • Automatic transmission
  • 42,000 miles
We bought a new 2002 Trailblazer. Never used the four wheel drive until it had 39,000 miles on it. At that time, found out we would need to replace a transmission module. This was replace about three months ago. My wife was driving the truck down the interstate in two wheel drive. Without warning, she felt the vehicle lose power and slow down. She glanced down at the electronic switch indicator for drive condition. The indicator light was flickering between four wheel hi and four wheel lo. If there had been other traffic around, it could have been a serious accident since she slowed down under 40 mph during this ordeal. I was driving the vehicle and was stopped waiting to make a left hand turn. The drive indicator, without warning, started to switch between two wheel drive, four wheel drive hi and four wheel drive low. I didn't move. After about 5 seconds, the lights stopped flashing and the two wheel drive indicator lamp was on. I proceeded to make the turn. The dealer (glenway Chevrolet, cincinnati, oh) finds nothing wrong with the vehicle. Their suggestion: We start to replace parts, at our cost.

- Elizabethtown, IN, USA

problem #34

Mar 262005

Trailblazer 4WD 8-cyl

  • Automatic transmission
  • 54,000 miles
Shifted vehicle into reverse and heard loud bang. While backing heard grinding and scraping noise. Shifted into drive(forward gear). Hear grinding noise in drive. Taken to mechanic. Diagnosed with broken planetary gears. Parts available for inspection.

- Beacon Falls, CT, USA

problem #33

Mar 082005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 60,000 miles


Purchased vehicle 6 months ago from a dealer. It had 54, ooo miles on it and it now has around 60,000 hisband noticed that the transmission was not shifting properly at times, we mentioned it to dealer and they said that nothing was wrong with the transmission on our way back from town one day and before the day was over and we could get back home we had lost all but 1st and 2nd gears, took to our mechanic and transmission has to be replaced on this vehicle with only 60, ooo miles on it. Of course the warranty had expired, and now we are stuck with repairing a vehicle that should have been taken care of before this.

- Bitely, MI, USA

problem #32

Feb 102005

Trailblazer 6-cyl

  • 63,000 miles
Transmission failed due to band failure for the third and forth gears, completely burn up. Contacted Chevrolet. Dealer stated that they did have transmission problems......

- Kentwood, LA, USA

problem #31

Dec 132004

Trailblazer 6-cyl

  • Automatic transmission
  • 35,200 miles
After starting the vehicle it would be hard to shift/ drive/reverse gears. Dealership was notified, but did not resolve the problem. Hard to shift when cold.

- Cleveland, TX, USA

problem #30

Dec 152004

Trailblazer 4WD

  • Automatic transmission
  • miles
After starting my 2002 4WD Trailblazer (38025 miles) it would not go into reverse. It will go forward with severe difficulty getting out of first gear. Mechanic says transmission is shot. I did not get the extended waranty but I called cheverolet for assistance to see if they would help. Chevy said to take it dealer for diagnosis, have them fix it and then they would decide if they would help. My Chevy dealer said it would be at least $300 to diagnose. If it needed a new transmission it would then cost $2500 for the transmission and $900 to put it in. Chevy wants me to do all of this before they will decide to help or not, bs. Dealer also told me the best he had ever seen Chevy do for someone that was out of manufacturers warranty was to pay half, and that he said is extremely rare.

- Avon, IN, USA

problem #29

Nov 092004

Trailblazer 4WD 12-cyl

  • 40,000 miles
Was at a stop light and when the light turned green tried to drive. Truck was in drive and was acting as if in neutral. Almost was hit by a trailway bus. Truck will not drive in drive, or reverse. Alot of noise from rear end as if truck is about to fall apart. Also, truck rattles when driving 50 miles an hour. Time to turn in...why should we pay for defective vehicles that have had the mechanical problems brought before Chevrolet dealerships and owners. Time for class action lawsuit. You may contact me...deceptive practices, and product liability issues.

- Baltimore, MD, USA

problem #28

Oct 262004

Trailblazer 4WD

  • Automatic transmission
  • 70,000 miles
Transmission leaked fluid from the seal, and the vehicle would not go over 25 mph. Consumer drove vehicle to the dealer, and the manufacturer stated they would only pay half for a new transmission.

- Simpsonville, SC, USA

problem #27

Jul 302002

Trailblazer 6-cyl

  • Automatic transmission
  • 3,000 miles
Engine stalls ; engine hesitates; engine trembles.

- Austin, TX, USA

problem #26

Jul 192003

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 8,000 miles
Vehicle constantly displays "service engine lamp", air bag module had a problem, rear brake lamps blew out, 4 wheel drive mechanism on dash was replaced, ignition never turned off all the way, killed battery because it drained battery.

- Fair Lawn, NJ, USA

problem #25

Sep 102003


  • miles
Transmission went out couldn't drive-repaired/ rear window won't roll-up/seatbelt won't retract, later fixed, but still won't work on occasion/ brake lights have gone out 5+ times repaired still not operational/ water pump exploded/rear window won't lock first try/ check engine llight stays on.

- Detroit, MI, USA

problem #24

Jul 072004

Trailblazer 4WD

  • Automatic transmission
  • miles
Upon startup (cold or warmed) there are high RPM's, the idle is high, engine races and does not idle down. When shifting into drive and giving gas there is low acceleration and the truck won't go over about 15 miles per hour. After driving about 2-3 blocks the truck shifts and then runs normal. Intermittent problem, dealer states if there is no problem we can't diagnose or fix it. Black box recorder is needed to install until problem is reproduced and can be recorded.

- Rochester, NY, USA

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