hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
55,314 miles

About These NHTSA Complaints:

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problem #50

Mar 312010

Trailblazer EXT

  • 57,000 miles
Instrument panel/ speedometer no longer works, first incident happened March of 2010. As of 12/2013 the voltage meter, RPM gauge, speedometer have completely stopped working.

- Flint , MI, USA

problem #49

Mar 012013

Trailblazer EXT

  • 62,000 miles
Speedometer gets stuck at random places. Impossible to know how fast you are going. GM recalled for this but not on trailblazers.

- Hilton, NY, USA

problem #48

Jun 012012

Trailblazer EXT

  • miles
The electrical system on my 2004 Trailblazer ext is not operating properly. The tachometer doesn't register, nor does the battery gauge and uncertain if the reading on the oil gauge is accurate. The fuel gauge is not operable, the needle is either pass E(empty) or pass F (full), I'm constantly re-fueling for fear of running out of gas. When first starting the engine, the speed indicator might register correctly, but then it falls below 0 mph while traveling speeds of 35 to 55 mph and other times it may indicate speeds in excess of 100 mph. Problems with the speedometer first started in June 2012, I used a gps to keep track of traveling speed. Afterwards, the other gauges started to malfunction. No parts have been repaired or replaced.very concerned about safety issues, as I occasionally Transport my grandchildren to appointments. Has Chevrolet made any amendments to correct these problems? assistance needed please.

- Chesapeake, VA, USA

problem #47

Aug 282011

Trailblazer EXT 6-cyl

  • 56,500 miles
The speedometer is not registering the correct speed, jumps around while driving and has affected the cruise control. I found that this issue is the same as NHTSA item # 10023585 for most similar GM vehicles, but for some reason, this family of GM trucks was not included in the reported issue. When the vehicle is stopped, the speedometer needle drops well below 0 and then jumps around when the vehicle starts moving. Based on checks with our gps, the speedometer is off by as much as 20 mph.

- Michigan, MI, USA

problem #46

Jun 242010

Trailblazer EXT 4WD 6-cyl

  • 81,524 miles
The instrument cluster stopped working, only the temp gauge and the fuel gauge works. The speedometer, tachometer, oil pressure gauges do not work. I believe General Motors needs to issue a recall on this as this is a common problem with these vehicles.

- Rosemount, MN, USA

problem #45

Jun 262011

Trailblazer EXT

  • 95,000 miles
Speedometer goes completely out, falling below zero while traveling on road, typically after cruise control has been used, multiple warning lights flash while onstar and computer showing no codes after 4X4 used. Unable to diagnose problems because problem is intermittent and after vehicle parked for several hours problem is gone. Occurs about once a week. Has caused several instances of being unable to determine how fast your traveling. 2004 Chevy Trailblazer ext lt 4X4 I6 engine.

- Germantown, OH, USA

problem #44

Oct 222010

Trailblazer EXT 6-cyl

  • 90,000 miles
Speedometer was reading 90mph on a trip and cars were passing me, when I stopped the speedometer read 35mph standing still. It did this for about 3 days, then went back to normal. The other day coming home from a trip it seemed like it was acting up again, but my husband was driving, he thought it was acting up too. It is back to normal, haven't done anything about it.

- Liberty Hill, TX, USA

problem #43

Jan 252011

Trailblazer EXT

  • miles
I am having multiple instrument cluster problems on my 2004 Chevy trailblazer. They have done recalls on every type of Chevy truck but the trailblazer. Why not the trailblazer as well? I have been reading forums after forums and complaints about the same thing and GM refuses to do anything about it. This needs fixed otherwise there may be fatal accidents by engines blowing up from the oil psi gauge not working properly and so on.

- Pensacola, FL, USA

problem #42

Jan 152011

Trailblazer EXT 4WD 6-cyl

  • 70,343 miles
1, normal driving before failure. 2. the speedometer is entirely inaccurate even in park. 3. nothing has been done or can be done to fix.

- Dewitt, MI, USA

problem #41

Jan 032011

Trailblazer EXT

  • 116,000 miles
My vehicle is currently at 116,000 miles and the speedometer and tachometer all of a sudden went to zero. It continued to stay at zero after I turned the vehicle off. The next time I drove it, it stayed at zero until halfway through my drive when now its stuck at 61 mph, which is where my cruise control was set. The tach now works half the time but the speedometer is giving me misleading information. I live in Wisconsin where the weather is such a variable. I am always using my speedometer in certain road conditions. I have certain speeds I go in certain conditions (light snow, deeper snow, rain to freezing rain, freezing rain, slushy conditions, ice, sleet and just plain normal.) consequences for not retaining the correct speeds in certain conditions in Wisconsin....gee let me think....death would probably be the worst. Nothing's been done to fix this yet because I cannot afford it. It's one of those things that should just work and its a [xxx] shame GM hasn't done anything yet considering all the problems. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Stoughton, WI, USA

problem #40

Jun 092009

Trailblazer EXT 4WD 6-cyl

  • 48,000 miles
2004 Chevy trailblazer lt model had defective speedometer. Constantly showing wrong speed, and stuck between 50 and 120 mph even when parked.

- Itasca, IL, USA

problem #39

Dec 122009

Trailblazer EXT

  • 90,000 miles
The contact owns a 2004 Chevrolet Trailblazer ext. While the contact was driving at various speeds, unexpectedly the speed odometer and other gauges became inoperative. The vehicle was taken to an independent mechanic for diagnostic testing where they stated that the failure was contributed to the instrument panel cluster. The vehicle was not repaired. The failure mileage was approximately 90,000.

- Falkville, AL, USA

problem #38

Jul 222010

Trailblazer EXT 4WD 6-cyl

  • 52,000 miles
I have a 2004 Chevrolet trailblazer. For the past year the speedometer has run amok. I can be traveling at 30, 50, etc. Mph and the needle ranges from 20 mph over the speed limit and at times surpassed the 120 mph mark on the dial. Can you help? thanks.

- Schaumburg, IL, USA

problem #37

Nov 152008

Trailblazer EXT

  • 60,000 miles
The contact owns a 2004 Chevrolet Trailblazer ext. While driving approximately 35-40 mph, the speedometer, rmp gauge, tachometer, and the heater on the instrument panel stopped operating. The contact stated he called the dealer and the vehicle was not under warranty and there no recalls on his vehicle. The vehicle had not been repaired. The contact was unable to provide a VIN. The approximate failure mileage was 60,000 and the current mileage was 100,000.

- Chicago, IL, USA

problem #36

Feb 042010

Trailblazer EXT

  • 65,655 miles
I was drving down the road and the speedometer stopped working while the truck was in motion. It went from 60 mph to the needle going all the way past 120 and pointing down at the odometer. My speed did not change during all this.

- Richmond, IN, USA

problem #35

Jan 252010

Trailblazer EXT

  • 70,000 miles
My 2004 Chevy trailblazer oil, gas, speedometer and battery gauges stopped working and my heated seats smell like they're burning when turned on.

- Palm City, FL, USA

problem #34

May 102009

Trailblazer EXT

  • 75,000 miles
Battery gauge failed about 6 months ago and I didn't think much of it but now the gas gauge, oil gauge and fuel gauge are failing and according to everything I have read the speedometer is next. My dome lights haven't worked right in over a year but that didn't bother me. The gauges all failing are a safety factor. It occurs everytime I start the SUV - I do not have the money to repair it.

- Midlothian, VA, USA

problem #33

Dec 152009

Trailblazer EXT

  • 83,560 miles
The speedometer has failed to work properly. It is erratic, sometimes registering "0" and sometimes registering 20-30 mph over actual speed.

- Cooksville, MD, USA

problem #32

Dec 102009

Trailblazer EXT

  • 75,000 miles
While driving all gauges in the instrument panel will completely stop working leaving vehicle traveling at an unknown speed!

- Angleton, TX, USA

problem #31

Oct 292009

Trailblazer EXT

  • 92,000 miles
Instruments on the instrument panel began to fail one at a time starting with tach then oil pressure and now speedometer. Started a couple of months ago and have not had the money to fix. Have to fix it now that speedometer doesn't work. Problems started at about 75,000 miles now at 92,000 miles.

- Laverne, OK, USA

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