Just wanted to add mine to the rest I have read--tonite after returning home from major shopping trip--while passing a vehicle on the highway I noticed the speedometer needle stuck at 80 and then quit working altogether--just bought the car in June, 2007. No other problems so far--from what i have researched sounds like this could be quite costly to fix--I have no warranty on the car at this time, either--great time for this to happen right before x-mas and a major wedding in my family--so expenses are a little tight--will call local chevy dealer in the morning to see if I can get an estimate--also need to have fixed as soon as possible--it is dangerous to say the least to not know how fast you are going--especially since the impala rides so smooth and easy to speed with--I love the car otherwise, so far--maybe I should look into getting an extended warranty on this car---repairs seem to be very expensive!!! I owned a 1990 mercury topaz and drove for 12 years and never had a speedometer quit!!!

Just as the previous folks mentioned, except that I reported it while under warranty and the dealership couldn't reconstruct the problem. Now it is severe, and my warrant is out. I waited for 4 model years to get one so the bugs were out, well, 2005 seemed to be the year that all reviews I have read have had the problem to be non-existent.

I was taking my wife to a high risk pregnancy clinic 200 miles away and came upon a curve that I could handle at the 50mph recommended by a caution sign. After hitting the brakes hard due to no going the safe speed for the curve, I almost lost control. I then noticed I was actually going almost 70mph, after the gauge jerked upward, then begin to jitter in 1mph increments, until it reached estimated 160mph, actually sitting on the Neutral letter. This problem IS a saftey issue of the worse scenario for those who RELY on a critical part to be accurate. It isn't like a cable came loose, this stuff is electronic and could even be a fire hazard. A recall is indeed in order, because if something did happen, I would sue GM's ass off for faulty equipment. It is FAULTY equipment and NOT wear/tear, especially at 23,000 miles. this time, I was able to have pictures of the cluster taken while I drove.

http://www.pix8.net/pro/pic.php?u=365cLGG7&i=1076153

http://www.pix8.net/pro/pic.php?u=365cLGG7&i=1076154

Just like my rotors that seemed to develop warping and cracking every 1000 to 2000 miles, and I baby my car. Listen to a lecture how I am hard on my brakes from some dipshit manager, after a 1500 mile interstate roadtrip. After the 5th time, I didn't hesitate to take the parts back to GM service area and drop them off and tell them what a piece of sh*t the OEM is and show them the rotors pieces breaking off, then showing them the high end part. But, next time, I will pull in and show them, go out and buy from a different MFR and pull in the lot and let them see a live boycott.

My speedometer and temperature gauge keep getting stuck. It's the same exact story as anybody else here. I tried to call Chevrolet (1-800-222-1020) and of course there are no recalls and it's not under warranty. They have just suggested to take it to a certified GM technician and once a diagnosis is made (which you will probably have to pay for) you can TRY to send that to Chevrolet and they MAY see about helping with the cost. No promises, no solutions. I am definitely looking further into seeing what can be done... this is an extreme safety issue and quite expensive to fix. If ANYBODY hears anything more about they are doing to about this, please let us know.

I am having all of the problems with my speedometer as mentioned in the first 3 complaints, plus my RPM reader is haywire. Sometimes they work normal then all of a sudden BAM back to haywire. Also recently both of my cigerette liters have died (don't smoke but spent $300 for dvd players that my son can now NOT watch)! In the last week, when I pull out of my driveway just like normal, my traction active sensor comes on and the car makes strange sounds. This has rarely happened before and only if sliding on ice. Hello, it's summer, there's no ice and it hasn't rained in my city for almost 3 weeks now! Taking the car in this week to see what the problem is before I am stranded on the highway with a 2 year old! Thanks, Chevy!!!

I first had the problem at night only with speedometer and dimming the instrument lights fixed problem, then on hot days it would go crazy, and now the temperature gauge is misreading also. So I finally removed the instrument cluster to check for a loose connector, but everything was fine so I took the unit apart and found one of the central processing chip had silicone accidentally dripped on it at some point during assembly. So I peeled of the silicone of and the problem is back to being on hot days, I think if the silicone had been removed sooner before the chip was seriously damaged it would have been fine. The chip has a dark spot with white rings around it from high heat build up. If you just started having this problem do not put off removing that small blob of silicone. Great Car with great gas mileage and this has been the only problem.

My problem started about 4 months ago with my gas gauge. I was almost on empty and I went to fill my car up. After starting my vehicle the gauge went all the way around then stuck at the bottom. Then after that, went my gas gauge then the temperature gauge. This has been so frustrating!!!!!! I went to another dealership and they checked it out and said it was the cluster switch. Everyone that has this same problem should call Chevrolet customer service @ 1-800-222-1020 and press the correct prompt for problems. I can't believe there hasn't been a recall on this because I have seen several complaints on this problem.