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: Carrying the not-so-proud traditions of its 2002 predecessor, the 2003 has a handful of instrument panel malfunctions that can leave you guessing your speed, engine temperature or how much gas is left in the tank.


fairly significant
Typical Repair Cost:
Average Mileage:
116,137 miles
Total Complaints:
10 complaints

Most Common Solutions:

  1. not sure (10 reports)
2003 Chevrolet Trailblazer accessories - interior problems

accessories - interior problem

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2003 Chevrolet Trailblazer Owner Comments

problem #10

Aug 062012

Trailblazer LTZ V6

  • Automatic transmission
  • 59,800 miles


speedometer goes wacky, when doing 5mph it says I'm doing 60........lights out on steering wheel radio control..........tach lights

- , Sharon Hill, PA, USA

problem #9

May 292013

Trailblazer LS 4.2L

  • Automatic transmission
  • 112,000 miles

I don't understand why no recall has been validated on the gauges not working correctly on the dash board. There is certainly enough complaints for a recall. This malfunction can cause your engine to idle to hard and blow a head gasket, not knowing how fast you are going can land you in jail not to mention a wreak that could possibly hurt or kill someone. GM has done a recall on there similar vehicles why haven't you owned up to this problem the trailblazer has. I would appreciate to know why you have done nothing about this problem so many of them are having.

Thank you,


- , Huntington, WV, USA

problem #8

Nov 132012

Trailblazer LS 3.2L V6

  • Automatic transmission
  • 151,000 miles

Gauge in the instrument panel sticks - speedometer, fuel gauge, tach. Temporary fix for it - shut off vehicle turn key as if to start but not that far. Might take several attempts to reset completely depending on how far off the gauges are.

- , Wright, KS, USA

problem #7

Jan 152012

Trailblazer LS 4.2L

  • Automatic transmission
  • 170,000 miles


My spedometer started going wacky and then it is my tachometer. Now both don't work much at all. Thankfully, I got it inspected and don't have to worry about it for a while.

This should be recalled.

- , Fort Worth, TX, USA

problem #6

Dec 152011

Trailblazer 4.2L

  • Automatic transmission
  • 141,000 miles

recently i have experienced the problem of the rpm gauge totally going out and now the oil pressure gauge is going. The cluster panel apparently in the 2003 trailblazer has some defects. all of a sudden when this things begin to happen it is just a matter of time until other things start going wrong. as a vehicle owner, with the price of labor and materials you some time dont have the time or money just to keep pouring into something if it is continually go wrong. i feel the dealership should get involved and check to see if they can help the consumers with this problem. apparently i am not the only one that is having similar problems. i feel as it should be handled by the manufacturer before something drastic happens to someone. please investigate and try to help us get this handled as a recall

- , Wetumpka, AL, USA

problem #5

Feb 072012

Trailblazer V6

  • Automatic transmission
  • 147,000 miles

I have several complaints to file with this car. This will be my first. A few days ago I noticed that every time I turn on my car, my clock is resetting. As of yesterday, my temp gauge always sits at 260 but my car does not appear to be overheating. Dont' really have the money to get this fixed, but it seems kind of dangerous sine I wont be able to tell if my car is overheating or not. I don't want to be in the middle of the freeway or a busy street and just have it shutdown on me b/c it's too hot and I have no clue! Chevy really needs to get it together. I don't think my next car will be a Chevy for sure!

- , Chattanooga, TN, USA

problem #4

Jan 152011

Trailblazer 6 cyl

  • Automatic transmission
  • 42,567 miles


I can't see my speed that's a real problem. It does not work.

- , St.Louis, MO, USA

problem #3

Jun 032010

Trailblazer LT 6 cyl

  • Automatic transmission
  • 160,000 miles

The speedometer doesn't work. This is a common problem with the Trailblazer line and has not been recalled. GM knows the issue with the Trailblazer but ignores the safety issue. This is a safety issue that should be addressed.

- , Lafayette, IN, USA

problem #2

Feb 102009

Trailblazer LS 3.2L V6

  • Automatic transmission
  • 113,000 miles

First, my speedometer just quit. Then my temp gauge started going haywire. I get up first thing in the morning, go outside and crank up the truck and temp gauge reads past 260. I mean, as far over as it can go. Now, my rpm gauge is starting to go haywire. Poor gas mileage and now starts to rattle in the undercarriage. This truck has sucked from the time i bought it. Had a Camaro before it that sucked also. I'm done with Chevy. Think I'll go back to Nissan, had little to no problems with my Maxima or Sentra.

- , Jackson, MS, USA

problem #1

Oct 152008

Trailblazer V6

  • Automatic transmission
  • 65,000 miles

I already sent in a complaint but I wanted to try to help out my fellow trailblazer owners. File a complaint with the NTHSB. There complaint number is 1-888-327-4236

- , Norco, CA, USA

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