Absolutely nothing out of the ordinary, regular driving conditions. The speedometer on my 2005 Chevy Trailblazer does not work. It is continuously reading the wrong speed and skips when moving. It will go all the way to 120mph and then beyond when I know I am only going 50. At 55 to 65 miles an hour the speedo sticks then continues to climb. The only way I have figured out how to change it back is to turn on and off the vehicle until it resets back to 0. this takes for ever and is damaging to the vehicle. It only goes back 4 mph at a time whenever I have to do this. It happens almost everyday now and I am livid with my vehicle. I will never buy a GMC again.

- Portland, OR, USA

2005 GM Trailblazer speedometer with 58300 miles is totally inoperative due to a faulty stepper motor within the instrument cluster panel. Other gauges in this cluster are also potentially susceptible to premature failure because they use the same defective model stepper motor. This is a safety issue especially during rainy or icy months where unknown excessive speed could cause a fatality. The speedometer, as well as the odometer, should be serviceable for the life of the vehicle and is not deemed perishable. GM customer service uses a predefined 'denial of service' campaign by which they gather information and require dealership testing, the cost of at least $88 to be paid by the owner, then denies all remedial action by using the VIN number and mileage as a reason to not replace the known defective part. This is thought to be integral to the delphi GM parts suit $100 million settlement of September 10, 2007 where the defective stepper motor part was publicly acknowledged and GM is suppose to replace them without cost to the consumer. Further evidence of GM using a known defective part in their speedometer is a class action settlement filed and won by tousley brain stephens, llc on November 7, 2008.

- Louisville, KY, USA

I am also having problems with my speedometer. I am contacting General Motors in detroit to see about getting this problem fixed not only for myself, but for everyone else who is having this problem. (they fixed my faulty fuel problem).

- Indianapolis, IN, USA

Speedometer no longer working properly. It varies from day to day as to what speed it shows that the vehicle is traveling. I believe this to be a danger in the fact that you do not know how fast you are actually traveling. To get technical the dmv says that you should have atleast 1 car length for every 10 mph you are traveling between you and the vehicle ahead of you in order to stop your vehicle in time. How can you do that if you don't know how fast you are going. Was quoted $500 cost to repair.

- Mount Dora, FL, USA

Speedometer on 2005 Chevy trail Blazer is not working properly. Says im doing 20 mph when im stopped and says 120 when going 50.

- Palm Coast, FL, USA

My speedometer has failed on my 2005 Trailblazer with 67,000 miles on it. It started malfunctioning in Dec.09 intermittently. Now the defect seems permanent. My Chevy dealership says GM will not stand behind the problem. I escalades. Why was the Trailblazer not included when they exhibit the same problem with instrument cluster failures. Is it because it is too large a problem to deal with. It is a safety issue when the speedometer is incorrect. There are too many failures to have this problem disregarded by GM. This is an expensive repair(about 5-600 dollars).the number of complaints are so great that I feel GM is ducking the problem. I can understand why GM needed a government bailout by manufacturing vehicles having such a grievous problem. Instrument clusters such not be failing at such a horrendous rate.

- Hudsonville, MI, USA

The speedometer on our 2005 Trailblazer has malfunctioned and no longer reads the correct speed. This started without cause and consistently shows the speed as 85 mph or higher no matter how fast you are actually going. Driving a large vehicle and not being able to tell what speed you are traveling at is extremely dangerous regardless of the increased potential for traffic citations.

- Fairffield, OH, USA

2005 Chevy Trailblazer lt speedometer goes crazy and up to 120 mph when car is only going 40mph. Gas gauge is also not working accurately all the time. Stepper motor's need replacing and GM won't recall it and fix.

- Hiram, GA, USA

Speedometer and gas gauge malfunctioning headlights seem to blink when I drive at night. Chevy is well aware of these problem with the Chevy Trailblazer 2005, they need to do a recall on the instrument panel like now! or lives could be in danger due to the electrical malfunction these vehicles are experiencing.

- Ceres, CA, USA

We own a 2005 Chevy Trailblazer with 62,000 miles. I was driving down the highway when I noticed that the gauge was reading 120 mph. I pulled to the side of the road, and when it was in park it only went down to 45. This is a huge problem for me, I have no idea how fast I am going!!! I searched the internet, and this looks like a common problem for Chevy products. Please help I don't have the $600 to fix this.

- Emerson, NE, USA

My 2005 Trailblazer's speedometer will stop working while I am driving. It seems as though it gets too hot either from the heater being on or if I am driving a long distance and it will hit a certain point and the speedometer will just stop working. The first time this happened I was on my way to California for thanksgiving and in the middle of my drive I looked down and I had taken my foot off the gas and instead of my Trailblazer slowing down the speedometer kept raising. I had to rely on my speed by my RPM's. I was able to use the fuse box to reset the speedometer and it started working again for only a short time and then it stopped working again. I had to repeat this process about 5 times that weekend. Since thanksgiving weekend it has happened several more times only instead of raising in speed the speedometer will stay between 0-30 miles per hour when according to my RPM's I should be going about 65 or 70 mph. I can turn off my Trailblazer and let it cool off and then the speedometer will start working again. I have found several places online where Trailblazer owners have complained about the same problem. It will cost several hundred dollars to fix, but if other Trailblazers are having the same problem then there is obviously a defect with the speedometer which should become a national recall. It is not fun driving and thinking you are going one speed when you are not, and I am surprised there haven't been multiple car accidents from this problem. The driver's electrical panel should not fail in a car and that is a huge safety concern!!!!

- Tooele, UT, USA

My 2005 Chevrolet Trailblazer lt speedometer has stop working. When we were driving it suddenly went to 120 mph and were actually driving 40 mph. It is not safe to be driving like that! an accident can occur or possibly death! to this date it is still stuck at 120 mph and works erratically! I bought it new in 2005 and only has 30,000 miles! this is a serious and potentially dangerous problem that can cause serious accidents and deaths. I believe GM should be responsible for ensuring that their vehicles are safe for their customers to drive. I would encourage NHTSA to contact GM for a formal recall as this is a very dangerous situation. Thank you.

- Chino, CA, USA

Speedometer quit working on 2005 Chevy Trailblazer - no reason it quit. Went completely off of the gauge.

- Yukon, OK, USA

My 2005 Trailblazer instrument panel constantly fails - the speedometer stops working which is a safety issue. The gas gauge has been fixed once already and is now broken again. The vehicle has power surges which is another safety issue. The transmission shifts the car up and down when trying to slow down causing power surges. This is another safety issue. The following are other issues which this model vehicle: Stereo cd player stopped working, the check engine light comes on when the gas cap light, the lights flicker also. I ought this vehicle used and with a cracked front bumper which the dealer didn't fix (dealer stuck a little bondo on area and repainted it so I thought it was a new bumper when I accepted the car after repair. It cracked in a matter of days) and I know this was caused due to the surges in power. A severe safety issue. The vehicle has serious electrical problems the Chevrolet should stand behind and fix. It is not fair to the consumer. I have checked the web and have read many, many other similar complaints. Chevy owners should fill a class action lawsuit against Chevrolet if they don't do a recall and fix these problems. I experience a fender bender accident when my vehicle didn't stop and bumped another cars back bumper causing an accident and an insurance claim. I am fed up with this vehicle but can't afford to replace it. Linda vanauken

- Altamont, NY, USA

The gas gauge starts out erratic then will completely stop working and you never know how much gas is in your tank when you just filled it full. Vehicle will die for no reason in traffic and at times the headlights dim and volt meter drops randomly while driving. When you look at www.aboutautomobile.com/complaint/2005/Chevrolet/Trailblazer you see that this a common problem with the 2005. It needs to be addressed before there are deaths.

- Frederick, CO, USA

Headlights intermittently 'flash' for a second during first 5-10 minutes of driving. Have replaced alternator and idler pulley. GM suggests letting vehicle idle 1+ minute after start before engaging gear; this sometimes works. Dangerous and distracting to other motorists, as it appears to them like my vehicle is flashing its highbeams.

- Menomonee Falls, WI, USA

Headlights dim and volt meter drops randomly. Most evident at night, of course. Sometimes headlights fail completely for several seconds. Dealer has replaced alternator and fuse block but neither fix corrected the problem.

- La Crosse, WI, USA

I am the original owner of my 2005 Chevy Trailblazer and the speedometer stopped working completely and the dealer wants $350+ to fix it. I don't have that kind of money! I have been doing my research and discovered how many other people are having the same problem and it should be recalled and fixed by Chevy.

- Virginia Beach, VA, USA

All the inside and outside lights flicker when driving people think I'm high beaming them, tried to let TB idle for a minute but no good still flickering.

- Morrisville, PA, USA

I purchased a 2005 Chevrolet Trailblazer in 2005, in 2006 the gas gauge went out, it did not read the amount of gas the vehicle had in it. Later that same year the speedometer would spin all the way around the dial. As of 2009 it completely went out. The gas gauge went out when thee was about 80,000 miles on the vehicle. The speedometer went out when there was about 110,000 miles on the vehicle. I went to a website and there are so many complaints about this vehicle. See www.carcomplaints.com/Chevrolet/Trailblazer/2005/electrical/speedometer_gone_haywire.shtml and www.carcomplaints.com/Chevrolet/Trailblazer/2005/electrical/fuel_gauge_quit_working.shtml please help tp have the parts on this vehicle recalled.

- Fairmont, NC, USA