Nine problems related to electrical system have been reported for the 2005 GMC Sierra. The most recently reported issues are listed below.
Oil pressure gauge stopped working. Entire instrument cluster had to be replaced. $650. 00. Ridiculous.
The instrument cluster panel on my 2005 GMC Sierra pick up constantly reads the wrong speed. At times it registers 0 mph when im actually driving or it reads 120mph when stopped. Also the oil pressure gauge is pegged out. There sames to be alot of complaints for the same thing on the year and model, you need to make gm do a recall on this.
Tl- the contact owns a 2005 GMC Sierra. The contact stated that the speedometer would illuminate incorrectly. The vehicle was taken to the dealer for inspection where they stated that the instrument cluster needed to be replaced. The vehicle was not repaired. The manufacturer was notified and stated that the vehicle was not included in any recalls. The failure mileage was 60,000. Kmj.
The driver seat heater randomly turns on by itself. It randomly switches from the seat to the back of the seat to both at the same time, in no particular order. When I turn it off it just comes right back on again. I had the module in the door replaced one time, but it still does it. I live in the south, so it's extremely unbearable during the summer months. I will go for weeks at a time when it doesn't do it, but then it just seems to start again. There really does not seem to be anything in particular that triggers it. I thought maybe it was getting wet when it rains, but since I live in the south we have high humidity 95% of the time, so we have moisture problems here all the time. I can go for weeks that it doesn't happen, then it just starts up again. I have searched the problem on google and found that other people complain about the same problem with this particular model, but I can not find a safety recall issued by GMC.
2005 GMC 2500 hd Sierra 4x4 speedometer is stuck on 120mph and never reads below 70 head lights shut off for no reason while driving at night. Mileage odometer was moving 1 mile for ever 30 miles I drove now it went black all together auto seat adjustment is stuck and will not work right all dash lights are not working and everytime I unlock the truck the alarm goes off , I have to put the key in and turn it to stop the alarm.
Speedometer stops working and goes below the o mph. This happens every day after around 15 miles or so of driving.
My speedometer quit working around 78,000 miles. Slowly but surely all my other gauges have quit working over time. The rpm gauge, speedometer, oil temp, and gas gauge. Only one works now. The rest either don't work or fluctuate back and forth. I would have reported this earlier if I knew about this site. It's not the first complaint so there is something up with these models. They should be recalled and fixed by the dealers. I won't ever buy another GMC vehicle. That's for sure.
Within 4 months of purchase, was driving at approx. 25 mph when transfer case shifted into 4 high on it's own. Shut off vehicle, restart and able to put back into 2 wheel drive. Happened on and off for a little more than a month when it went to 4 lo while driving at 30 mph through town. Unable to reset. Limped it the 2 miles to dealership for diagnosis. Cost me $1200 to have the transfer case rebuilt. Smoked the clutch pack, burned out 2 bushings and bent shift shaft. Had second issue of shifting on it's own, may 15th, 2014. This time it cost me $500 for the shift motor to be replaced. Second problem, speedometer reading incorrectly or not at all. Been going on for about 3 years sporadically (apparently the little drive "motor" on the back of the instrument cluster, $300 replacement or, found a company to rebuild with new "motors" for under $200). Passlock issues started in Jan 2014, has left me stranded a couple times now. Can't get a good answer from dealer as to how to repair other than "bring it in and we'll hook it to our diagnostic system" (I. E. Pay us lots of money). Also having issue with check engine light on constantly. Intermittent engine miss on multiple cylinders. Rough idle, crappy mileage, but not down on power. Miss seams to go away off idle and not noticeable under load. New plugs, wires, etc, etc, etc. . . . Haven't figured this one out yet. Same answer from dealer (pay us more money please). Lastly, air bag light came on in Dec of 2012. Never crashed or bumped but had to replace left front air bag sensor. Love the truck, currently has 154000 miles but I'm getting frustrated with all the little electrical "glitches" and the dealer won't help a bit without the normal answer, "bring it in and we'll hook it to our diagnostic system". It's dang near $200 (diagnostic charge) just to get my truck in and out without even getting anything repaired!.
Returned to dealer 4 times for: brakes going out (4 new sets installed) abnormal wear on tires (f) valves chattering at 10-65 mph returned to dealer 3 times for: steering sector knocking front axle making warping noise transmission clunking when shifting up or down returned to dealer 2 times for: various electrical/light problems smoking in passing gear or hard take off all of the above problems are still on-going and have not been repaired.
| Electrical System problems | |
| Instrument Panel problems | |
| Battery problems | |
| Dashboard Failed problems | |
| Dash Wiring problems | |
| Wiring problems |