Print this page Notes: It would be ill-advised to blaze any trails with the 2004 Trailblazer. Its faulty fuel gauge could leave you stranded.


really awful
Crashes / Fires:
3 / 10
Injuries / Deaths:
5 / 0
Average Mileage:
65,512 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.

2004 Chevrolet Trailblazer electrical problems

electrical problem

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2004 Chevrolet Trailblazer Owner Comments (Page 10 of 19)

« Read the previous 20 complaints

problem #182

Mar 222010

Trailblazer 6-cyl

  • 47,717 miles


The contact owns a 2004 Chevrolet Trailblazer. The consumer stated the vehicle was at a stop, but still running. The contact noticed that all the lights on the instrument panel had suddenly illuminated. He turned the vehicle off and noticed that neither the windows nor doors would not unlock. The vehicle was taken to an authorized dealership where the ignition switch was replaced. The current and failure mileages were 47,717. Updated 7/16/10 at one point the consumer was unable to open any of the doors and had to turn the vehicle completely off. Once he turned the vehicle back on, everything operated as normal. The dealer stated there was an internal failure in the ignition switch. Updated 07/21/10

- Sturgeon Bay, WI, USA

problem #181

Mar 232010

Trailblazer 6-cyl

  • miles
2004 Chevrolet Trailblazer. Consumer states that he was trapped in the car even after pressing the unlock button. The door sand windows would not open. The consumer stated while driving, all of the dash lights illuminated, and were not working. The gas gauge read empty etc. Upon arriving at his destination, the doors and windows would not open, despite pressing the unlock button. The consumer and his occupants were trapped in the vehicle. The consumer turned the engine off and back on again, and everything worked. The consumer stated the incident happened several times for several days. According to the invoice, there was an internal failure in the liftgate module which caused the door locks to malfunction. The dash lights illuminating was the result of an internal failure in the ignition switch.

- Sturgeon Bay, WI, USA

problem #180

Apr 162010


  • 78,000 miles
Instrument cluster gauges and lights go haywire. Radio shuts off, security light comes on and alarm sounds. Speedo and tach continue to work fine.

- Oklahoma City, OK, USA

problem #179

Apr 152010


  • 51,000 miles


Instrument cluster went dead - heater thermostat went out and drivers side is stuck on heat and won't shut off - sending the Trailblazer to obama and gov.'t motors - no chance it will ever get fixed since obama bought off the union!

- Debary, FL, USA

problem #178

Jan 012010


  • 100,000 miles
Intermittent speedometer and inoperative tachometer.

- Sapulpa, OK, USA

problem #177

Jun 012008


  • 90,000 miles
2004 Chevrolet Trailblazer, speedometer will show a faster speed than you moving or will go to 0 while on the freeway. The tach has the same problem. This is a serious safety issue and it should be recalled now. I heard that they had the same issue on pick-ups and they were recalled.

- Willowick, OH, USA

problem #176

Nov 182009


  • 80,000 miles


The front air vents in my 2004 Trailblazer quit working after I installed a new battery. My front air vents will no longer work. After researching this on the internet it appears that this is a common problem with the Chevy Trailblazer. It will require the purchase and installation of a new control module to regulate the air flow so the vents will work. This is a component/design problem that GM needs to fix not the consumer.

- Middlesboro, KY, USA

problem #175

Mar 282010

Trailblazer 6-cyl

  • 55,000 miles
Speedometer started giving incorrect readings. Sometimes it is correct, sometimes 10 mph off, sometimes not working at all. When it first happened I found myself doing over 80mph in a 65mph zone. I only found out from my son in the back seat with his gps letting me know how fast I was going. Other wise don't' know what would have happened.

- Aurora, CO, USA

problem #174

Jan 012010


  • 60,000 miles
I have a 2004 Chevrolet Trailblazer. The instrument panel only works intermittently. I have checked the internet and this seems to be one of the most numerous complaints. I feel as if this present a safety hazard. Since this is your job to protect the public from defective automobiles I feel you should investigate this matter. Thank you. Randall saltink

- Portland, TX, USA

problem #173

Feb 122008


  • miles
Speedometer slowly stopped working then all the other gauges failed. The gauges do not work including the speedometer, RPM gauges, gas level, oil level, battery level and also temperature gauge does not work. The failure is always while driving never have the worked since the first incidence.

- Montclair, CA, USA

problem #172

Mar 212010


  • 63,000 miles


I just bought a used '04 Trailblazer with 63000 miles and the speedometer is not working properly...the needle is just pointing South!

- Rahway, NJ, USA

problem #171

Mar 222010


  • 47,717 miles
2004 Trailblazer when stopping doors and windows won, T open at times, even when pushing unlock button.trapped inside. Stopping and starting engines seems to finally unlock doors, carrying hammer to bust out windows in case of emergency fire of electrial equiment by maher St pete fl. Now

- St Pete , FL, USA

problem #170

Mar 182010


  • 120,000 miles
Tachometer and speedometer started intermittantly failing. Unit is failed more often than it works. Unit has not been repaired at this time.

- Claxton, GA, USA

problem #169

Mar 212010


  • 70,000 miles
2004 Chevy Trailblazer instrument cluster problems. Vehicle only has 70K miles. Gauges frequently read incorrect readings. The coolant temperature gauge has taken a deep dive and has pegged out as far as it can go and does not move now. Most instrument backlights have burned out preventing the speedometer and other gauges from being seen at night. Very dangerous. Quick search on internet results in a severe epidemic of this problem with all GM SUV's. a class action lawsuit resulted in a nationwide recall for this problem for all similar vehicles but not the Chevy Trailblazer or GMC Envoy. This seems to be a criminal act by GM. Something needs to be done to protect owners of these vehicles.

- Morristown, TN, USA

problem #168

Jan 132010


  • 41,200 miles
2004 Chevy Trailblazer. Instrument panel fails. No speedometer, gas gauge, battery, oil, etc.

- Margate, NJ, USA

problem #167

Feb 142010

Trailblazer 6-cyl

  • 60,000 miles
While using cruise control at highway speed the speedometer erratically increases. Braking to a stop does not take the speedometer to zero. Turning the vehicle off and restarting sometimes puts the speedometer needle to zero in five mile increments with each cycle. Problem is recurring. Vehicle is taken to the dealer and a "cluster" problem is diagnosed with estimated cost to be around $500. Internet research reveals this to be more than a sporadic problem resulting in the manufacturer recalling a number of vehicle models but not the Trailblazer. A call to GM's customer service department culminates only with a formal complaint being registered... this too being the common end for owners of Trailblazers (according to internet research) the problem is a potential safety hazard as when this occurs without warning one has to gauge driving speed by surrounding traffic.

- Bismarck, ND, USA

problem #166

Mar 082010

Trailblazer 6-cyl

  • 80,000 miles
Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6) as long as your beating up on Toyota, beat up on a company that real makes an inferior product. Gmac. I have been researching this on the web and their are thousands of complaints for this very issue. I have a 2004 trail Blazer. My odometer and speedometer start to slow down and then all of a sudden you look up and I am going negative rpms and negative mph while cruising down the highway. Or the next time it will go fast than I am traveling. Each morning though it starts out working correctly, then after about an hour it goes off again. Once it goes off it stays off till the car has been shut down over night. Loosing your speed while driving is dangerous. GM has been churning out cheap junk for years. Light them up. [xxx]

- Sartell, MN, USA

problem #165

Mar 082010

Trailblazer 6-cyl

  • 92,000 miles
My speedometer and RPM dial have stopped working on my 2004 Chevy Trailblazer. I called the 800 number and the lady told me that I am not covered for their special provisioning for this known problem. That their special provisioning only covers vehicles 7yrs/70K mileage. I have over 90K miles and they are not willing to cover me. I can"T afford to pay for this to be fixed. I will never buy another Chevy car I can"T believe there is no recall for this issue. There are 1000's of complaints online this should be a recall.

- Virginia Beach, VA, USA

problem #164

Mar 062008


  • 85,000 miles
Two years ago my wife and I were driving our 2004 Chevy Trailblazer on the interstate when our speedometer, oil gauge, tachometer, and voltmeter went out. We could not seem to figure out why everyone was passing by us so quickly when we were going the speed limit according to the speedometer. Thankfully we had gps and were able to figure out quickly what was happening. This is a very dangerous problem. If we didn't have gps we would have absolutely no way of knowing how fast we were going. Soon after this happened, the check engine light came on and we were having all kinds of electrical problems with sensors going bad. I have researched these problems and it seems as though we are not the only ones with this problem. GM has not issued a recall on this model for this problem, yet they did for the Suburban line for the same problem. Please, if you can, do something about this problem. We have yet to fix these problems hoping for a recall but have had no luck. We are now in the process of fixing these problems so we can pass inspection. Thankyou very much.

- Raleigh, NC, USA

problem #163

Jan 172010


  • 82,200 miles
2004 Chevy Trailblazers instrument panel isn't working properly. The RPM gauge fluctuates and often doesn't work which seems to cause the speedometer to respond slowly. I have heard from others with the same issue that eventually the speedometer will quit as will the gas gauge, oil gauge, etc. This is a potential hazard that has not been recalled by Chevy. Other models of the same year have been recalled, but not the Trailblazer.

- Maroa, IL, USA

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