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Chevrolet
Impala
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Speedometer or Other Instrument Panel Gauge May Work Erratically on Chevrolet Impala

Problem Description and Possible Solution

The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault.

Problem Data
RepairPal Verified
Average mileage: 105,074 (12,700–217,000)
11 model years affected: 2000, 2002, 2003, 2004, more2005, 2006, 2007, 2008, 2009, 2010, 2012
230 people reported this problem
Comments
Viewing 1 - 20 of 132 comments
I went on a long drive and the speedometer went crazy. Just shot up to past 100 mph and then spun around like a clock hand. Same exact thing happened to temp. gauge. Car never overheated but gauge is not working and just bounces around where ever and then stops where ever and freezes when I turn the car off. I had water pump replaced last year and have kept perfect tune ups on vehicle. I am going to try to replace sensors first.
the temperature gague said that my car was overheating, but the engine warning light never came on and i had plenty of coolant. took it to the mechanic, he couldn't find any problems other then the sensor possibly being bad. he changed that out and the gague worked fine for about 2,000 more miles & then went PAST the red line and all the way around. I found a way to reset it, but it just kept going back, so I dont even bother with it anymore.
Speedometer only works when it wants to. Using GPS to relate to speed. Have gotten a speeding ticket due to this fault. Cannot get repaired as the Chevy dealer said it takes a few weeks and the whole instrument panel has to be removed, plus is very costly. Don't have the money to repair. DEFECTIVE!
Instrument cluster has gone haywire. Sometime when I'm taking off at a light, it bumps, feels like someone has hit me from behind. Heater core went out, coolant leaks, has a small oil leak.........
Fuel and temp gauge are reading erratic. They're going from 0 to 260 degrees on the coolant temp and sometimes past the top temp, almost wrapping around. The fuel gauge is almost doing the wrap around also. To get it back to show normal, you have to turn the ignition to the acc on turn it back off. You have to keep doing this to get it back to reading normal
First the speedometer worked off and on and then finally stopped with needle going all over and stopping. Then the temperature gauge finally stopped working. The Fuel Gauge still works fine. I have been told the 2005 trucks had this problem and recalled but not the 2005 Chevrolet Impala.
The temperature needle goes past the red zone when I turned the engine on. This happened in the morning when the engine had been off all night and the engine is cool to the touch. I turned on and off several times then the indicator returned to its normal range
Can no longer trust speedometer and fuel gauge went out long ago. Gauge fuel by trip meter now and use portable GPS for speed.
All of the gauges stopped working. Gas, speedometer, temperature, and Rpm. Got the car brand new and by the 2nd yr all the gauges were out.
Problems first it was the speedometer that was gas gauge and then finally it was the temperature for the water. They sometimes work but most of time do not at all.
I periodically have an issue with my Impala where my speedometer will either not rise above about 40 mph, or will not fall below about 80 mph. I have no idea what speed I am actually going, so I just have to go the median speed of cars around me and hope that is somewhere around the normal speed limit. One time, I noticed the fuel gauge behaving in a similar fashion, though I have never seen them occur simultaneously. I can sometimes get the issue to fix by pulling over, shutting off the car, and turning the alternator off and on a few times until the speedometer settles where it should be (on zero). But it doesn't always work.

The issue is very off and on, though I have noticed that it seems to occur more in the winter. I have asked a few mechanics about it (though I can never replicate the issue), and they always come back to something regarding the battery. But I have replaced the battery since it started and I still get the issue every so often, and the battery always checks out fine. I have also had the alternator checked a couple of times, and that has always checked out fine as well.

I have not taken it in to get it fixed, since it is an irregular issue and more of an annoyance than a major problem. But it is just one of several issues (some more serious) that I have noticed with my vehicle.