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. The warranty has been extended on some of these units to 7 years or 70,000 miles.Google+
Car Problem Reports
GMC Sierra 2500 HD Speedometer or Other Instrument Panel Gauge May Work Erratically
GMC Sierra 2500 HD Problem
Average Mileage: 99,941 mi (22,000 mi - 306,007 mi)
Visitor, 2003 GMC Sierra 2500 HD, 36,500 mi
vehicle will turn on but the gauges wont work
Visitor, 2004 GMC Sierra 2500 HD, 65,000 mi
speedo bounces around or dies completely then works later
Visitor, 2004 GMC Sierra 2500 HD, 107,000 mi
FOUND A FIX. I have had the same problem. I had 3 or 4 gauges go bad on me. Oil said 0 psi while the truck was running, speedo said 80mph while i was in park and so on. It turns out that these clusters (GMC, CHEVY, etc.) are completely electronic. They use motors for the gauges. Something called stepper motors to be exact. There's 2 semi-easy fixes. If you're handy with a soldering iron, for about $50 bucks on ebay you can buy a kit that includes all new stepper motors and do it yourself. The other option is around $70 where you take out your cluster and ship it to someone who does repairs. Look up speedo cluster repair on ebay. Its about a 1 week turn around. I used someone called mandigital on ebay and i'm very happy.
Visitor, 2004 GMC Sierra 2500 HD, 141,000 mi
The oil gauge will stop working now and then and wont read the actually pressure. Now its the water temp gauge is reading off the gauge. It is just wrapping its self around and working its way back to normal.
Visitor, 2003 GMC Sierra 2500 HD, 165,000 mi
All lights and gauges just work when they wanna
I bought this truck used a couple of years ago and 3 or 4 times all of the gauges and the tach and speedometer have died for a few days. So far they have started working again before I have figured out what the problem was. If anyone has a solution I would love to hear it.
Visitor, 2004 GMC Sierra 2500 HD, 58,987 mi
About two weeks after we bought the truck our oil gauge started acting up. We had it replaced and it worked for about 2 weeks and went bad again. GMC wouldn't replace it, neither would the dealer we bought it from. Now 16 months after we purchased the truck the oil gauge is reading off, the battery gauge is reading off, the speedometer has stopped working right in the past week and I'm not sure about my gas gauge but suspect it's off also. You can tell because they always read something different. Will have to get it replaced at a huge cost to us.
Visitor, 2005 GMC Sierra 2500 HD, 47,000 mi
Started with the speedometer then the tachometer. From time to time oil and water temp gauge will not work
Visitor, 2005 GMC Sierra 2500 HD, 60,000 mi
Speedometer would not read correctly, dealer wanted $700 to replace and reprogram. I removed the module myself in 15 minutes, sent it to a repair facility in Reno, NV and I had it back in 4 days. 5 minutes to install. Total cost to me $90, including all new stepper motors, new LED lighting and shipping.
Visitor, 2005 GMC Sierra 2500 HD, 117,850 mi
the security light and brake light comes on and then all the gauges go to zero and every light in my dash comes on .then it goes back to normal then do the same thing again .then it goes back to normal and it might not do it again for a couple weeks.