I noticed when the weather got colder/snow in December, my speedometer was reading around 60 mpg high speed when I was going about 20 mph. After turning my truck on and off a couple of times, it would reset to 0 mph. Another heavy snow day came and it happened again, and after I was exiting my car yesterday, the needle pointed South and when I started the truck it went backward to 120 mph. I called GM to find out if there were any recalls on this problem or any others and they said there were no recall for my vehicle at this time, which I know is untrue due to the gas leak recall. I called the GM service center and was told the same thing and this item is not covered. I searched the web and found a class action suit against GM for the same reason as mine www.lawcash.com/attorney/4913/general-motors-lawsuit.asp

- Chicago, IL, USA

For the past several months, the speedometer has been acting up. It is now buried past the top registered speed. It will vary from time to time, but is, for the most part, non-working. It will show that I am at a high rate of speed even when the vehicle is sitting idle or in park. This is an ongoing problem and from what I can see, I am not alone with this issue. This is a big safety concern and I feel that GM needs to address the issue.

- Lake St Louis, MO, USA

Intermittently the speedometer reads from a few mph high to 70 mph high. This problem is well documented across the GM product line and is covered in one way or another by GM. But not the trailblazer. Why not?

- Durham, NC, USA

The contact owns a 2003 Chevrolet Trailblazer ext. The contact stated that the engine failed to start, the instrument panel produced a hissing noise, and the instrument gauges fluctuated erratically. The vehicle would start after several attempts were made. The dealer was unable to duplicate the failure. The failure has occurred three times at 39,650, 40,210 and 40,227 miles. The current mileage is 40,227 and failure mileage was 39,650.

- Lakeside , CA, USA

While driving about 70 mph my speed hand jumped to 110 RPM, when I got home and turned off the vehicle the hand was reading 60 mph. This has happened three times. I called the dealer and they said they have had this problem several times in trailblazers.

- Osceola, AR, USA

2003 Chevy trailblazer blew a few fuses so I could not start the vehicle (several times already), per dealer. Tachometer jumps around, radio gets hot, electrical lights turn off along with heater/cooler, rear lights replaced three times, hole in gas tank, drive line replaced, constant chirping/ticking noise (of course dealer does not hear). Purchased brand new and have way too many problems for a new vehicle. You asked for incident date....there are several. Will stick to Toyota's from now on....

- Fair Oaks, CA, USA

5 months after I purchased my 2003 Chevy trailblazer I went out to start the car and it would not start. I took the car to the dealer the first time for this problem and various others and was told they could not replicate the problem. I replaced the battery and the car worked for approximately another 5 months and the same occurred. On both occasions the key was locked in the ignition and attempts at jump starting the vehicle failed multiple times. Since the second time happened this morning I have yet to take it to the dealer. This car also has various other electrical problems sometimes the radio goes blank and gets stuck on one station as well as getting extremely hot (was told they could not replicate all of the problems but reprogrammed the radio so it would not get as hot). The dvd player just stops working (was told they could not replicate the problem). The blower motor for the rear air works sometimes and other times it doesn't (this was apparently fixed once already). The reverse lights stay on when the car is in drive (just happened last weekend). Shall I go on?

- Jessup, MD, USA

Double failure of 4-wheel drive indicators. 4-wheel drive failed but the "service light" did not appear on the dash and the led light on the 2wd/AWD/4-hi/4-lo switch did not display correctly. Because we were unaware that both indicators were not working and the 4-wheel drive was not working we attempted to go over a mountain pass during snow conditions under the assumption that the 4-wheel drive was working correctly. I was bringing my mother home from the hospital after a heart procedure. Luckily I was driving carefully, because the vehicle did begin to lose control, but I was able to make the necessary corrections. We were forced to turn around and take another route, which doubled the length of our drive. This normally would not be a problem except for my mother's condition.

- Bend, OR, USA

As I am going down the road the tachometer starts to jump around and then I lose the directionals and my lights. If I turn off the ignition it will not start again. This has happened four times in the past year. The dealership tells me that fuse #22 is blowing. As of today, my truck is still at the dealership and they do not know what is causing it. They have replaced the fuse each time. They also replaced the instument cluster and the ignition lock. I am seeking legal advise.

- Elkhorn, WI, USA

Have had my 2003 trailblazer lt 2wd V8 in the shop under warranty many times. First was a recall on the drive shaft which was replaced 3 times. Still have a noise the dealed says they don't hear! next came the taillight recall. Now I have a recurring problem with a dead battery. This doesn't happen all the time and nothing has been left on to cause it. I can go into a store and come out to find it dead. When you charge the battery, then either the heated seats work improperly, the blower won't come on, something different every time.

- Hazel Green, AL, USA

Front end loose, ball joints needed replacement. Driver side seatbelt defective/twisted. Rotors warped needed repalcement. Outside door handle does not open door. Dirver side mirror moves around (programed) without notice. Transmission engages rough, feels like it slipping. Tailgate out of allignment, rear seatbelt defective needed replacement, 4WD locked up in parking lot, front end has scraping noises when turning, heated seats not working, irratic, tailgate panel falls off, driver seat frame broken needed replacement, electrical system irratic.

- Jackson, NJ, USA

Complete power failure while driving vehicle in traffic on interstate. Cruising up the interstate at 65-70 mph and vehicle dash went black, steering locked, coasted to roadside and tried to restart vehicle. It took 5 attempts before vehicle would restart. This happened twice more the same day. Dealership had vehicle for 5 days and stated they were "unable to duplicate customers concern", but reprogrammed the PCM anyway.

- Hanover, IN, USA