The contact owns a 2004 Chevrolet Trailblazer. The contact stated that the speedometer failed intermittently. While parked, the speedometer read 120 mph. The dealer stated that the instrument cluster failed. The failure mileage was 22,000 and current mileage was 27,000. Updated 02-14-08

- Wheatridge , CO, USA

The contact owns a 2004 Chevrolet Trailblazer. The speedometer failed intermittently in all driving conditions. The speedometer would become stuck on 100 or 0 mph while driving at any speed or in park. No repairs were made. The failure mileage was 50,000 and current mileage is 62,000. Updated 02/14/08.

- North Waterboro, ME, USA

I was driving my 2004 Chevrolet Trailblazer onto the highway on January 4, 2008 and the speedometer went to zero. After we stopped and restarted the vehicle, it jumped up and down and then steadied around 50 mph even though we had to be traveling faster than that to keep up with the traffic on the interstate. Now when it idles, the speedometer intermittently catches. Bud wolf Chevrolet said on Monday, January 7th, that they would fix the problem free of charge as the Trailblazers were having the same problems as a number of other GM SUV's and trucks. (they fixed 5 Trailblazers in the past month that had the same problem with the speedometer). However, I learned that they were going out of business and would not fix the problem when I took the vehicle in for repair today. When I called other dealers, and Chevrolet's customer service department, I was told that I had to pay for the repair myself. From what I understand, many Trailblazer owners are unhappy because they are either having to pay $500 for the repair or drive their vehicle with a faulty speedometer because they cannot afford to pay for the repair.

- Avon, IN, USA

Speedometer in vehicle has stopped functioning properly. When parked the speedometer is indicating somewhere between 50 and 90 mph when driving the speedometer will travel sporadically up from its start point until it reaches its max location. When slowing or stopping the speedometer will sometimes travel back towards its start point, sometimes it will not. I do consider this to be a severe safety issue that GM should address. Research on the internet has revealed 100's of others with this problem in Trailblazers, as well as with GMC Yukon's, Sierra pick ups, Chevy Tahoe's, Avalanche's, and Silverado's. there has been an extension of the warranty on several models to repair this defective gauge cluster, but unfortunately the Trailblazer has not been included in this extension.

- Brockton, MA, USA

Speedometer defect in 2004 Chevy Trailblazer.

- Downers Grove, IL, USA

2004 Chevy Trailblazer speedometer jumps, registers incorrectly ie: 30mph when going 65mpg, or doesn't work at all, works intermittently.

- Windham, NH, USA

Speedometer on my 2004 Chevy Trailblazer does not work properly. It reads at speeds higher than you are traveling, often going past the 120 mph limit on the speedometer face. It is a constantly occurring problem, and has not stopped since it began. It is very dangerous because one never knows what speed they are traveling, which could lead to tickets or accidents.

- Lansing, NH, USA

Gauge cluster is non-functional. (tachometer & speedometer).

- Parowan, UT, USA

The instrument cluster failed in my 2004 Chevrolet Trailblazer. Not only did the tach and speedometer not work, they both registered the wrong information. At times, the speedometer would be reading 25 mph when the vehicle was actually going around 55-60 mph. If you can remember that they are wrong, it does not cause too much trouble, but can you imagine if someone who doesn't drive the vehicle too often, say a spouse, and they head into a sharp curve with a warning sign posted at 25mph, and they look at the speedometer for verification, and forget that it is wrong. This is especially dangerous at night, when it is harder to judge your speed. General Motors refuses to acknowledge the engineering flaw on their vehicles. There are literally hundreds of people who have experienced this problem. As a retired law enforcement officer in one of the the largest counties in North Carolina, I feel qualified to make the statement that this is an extremely dangerous defect and should prompt action by the NHTSA to force GM to repair these defective products at no charge. Instead GM is making a lot of money off their customers for the repairs. From what I can tell, about $500 per vehicle. The speedometers go out around 40-50 K miles.

- Stokesdale, NC, USA

Chevy 2004 Trailblazer speedometer cluster fails, resulting in incorrect readings on the speedometer and oil pressure gauges.

- Mt Pleasant, SC, USA

Just driving down the road and had a speedometer failure. We were going the speed limit and the speedometer went to 120 mph then dropped back down, pointing straight down. Lucky we were on a straight road and not a curvy one. The speedometer will have to be replaced.

- Paragould, AR, USA

Instrument panel lights go out without notice. At times all lights and gauges are on. Other times no lights or gauges work at all. I know that the instrument cluster was recalled on various 2004 Chevy truck models. Please check into this 2004 Trailblazer problem.

- Elkmont, AL, USA

Odometer stopped working.

- Fairfield, AK, USA

Whenever I drive at night the exterior and interior lights flicker and sometimes go out completely when I brake or allow the truck to coast. When I use the gas the problem resolves but since I have to stop sometime this isn't a good fix. The electrical gauge on my dash fluxuate with the lights going from low to high and back again. I've taken into 2 dealerships but they "can't duplicate the problem" I work nights so I am driving mostly during the night. How is it save for a young woman to drive alone at night without lights? this is an ongoing problem that has happened since I purchased the truck and has not been resolved.

- St Cloud, FL, USA

Tach is not working at all and speedometer is all over the face. Do not trust the information that is shown.

- Thompson, ND, USA

I have a 2004 chevorlet Trailblazer. The speedometer quit working driving down the interstate. I have no way to gauge my speed while driving. This is a common problem on GM products. The vehicle is 3 years old and has 66K and speedometer should not fail. This is clearly defective equipment and a safety issue and should be recalled immediately.

- Hagerstown, MD, USA

The contact owns a 2004 Chevrolet Trailblazer. While driving at an unknown speed, the contact looked at the speedometer and the dial was on zero. The tachometer was over 7,000 and the oil gauge was over eighty. The vehicle was taken to a private mechanic and he stated that the instrument panel was not working. The speedometer was thirty miles off, the RPM was stuck at 4,000, and the fuel tank varied from full to half. The contact spoke with Chevrolet and they stated that nothing could be done because the vehicle was not under recall. The current and failure mileages were 53,253.

- Windslow, AZ, USA

The speedometer on my 2004 Chevy Trailblazer is undependable especially in cooler weather. It might say I'm going 120 mph in town or 35 mph on the interstate. This happened last spring and occasionally this summer. Now it is real frequent. When I search (google) the problem it appears to be quite often with a lot of people.

- Apex, NC, USA

The speedometer is going bad. It registers speeds in excess of 120mph when the vehicle is only going 60mph. There is a limited recall but only if your vehicle falls under 7 years 70,000 miles. My 2004 Tahoe has 84,000 miles and is not covered under this "extended warranty".

- Conway, AR, USA

Speedodometer stop working.

- Okmulgee, OK, USA