Problems with 2005 GMC Sierra 2500HD ELECTRICAL SYSTEM

Always turns off while driving or while at idle

Today when i parked my gmc sierra 2500hd, i turned off the key switch and i noticed my blower motor was still running. after a short period of time i smelt something burning. i went out underneath the hood of my vehicle located the fuse box and removed the 40 amp blower motor fuse and that shut down the heater and the smell starting going away. it was 19 degrees here in oklahoma at the time of incident. i did some research on the internet and got several hits about gmc trucks that experienced the same issue except some of the vehicles burned completely to the ground. i also got information from the internet that general motors of canada recalled all there gm products that had the same blower motor assembly. i filed a complaint with general motors, detroit. they said they had no recalls. *tr

1) the driver door power windows,locks,and extended mirror buttons quit working,i can be driving down the road and i cant roll the windows down ,cant adjust my mirror and time that i stop to check the fuzes the door controls start working again. i try to lock the doors when i get out of the truck and nothing is working the pass.side works fine,i took off the door panel and they start working but by the time i put the panel back on .there still work but come back out and they quit again. 2)something wrong with my steering i thought it was my powersteering pump and replaced it ,but there still something wrong i think it might be the steering box i have oil leaking somewhere around there 3)its my air conditioner and heater, i can have the air on i get nothing but hot air on the driver side and cold on the pass side.i can use the vent with air and its the same,just hot on the driver side.and not on the pass side. 4) i keep losing the gmc center cap on my factory wheels i keep the black lugnut covers tight but i lose another center cap, 5) gmc aluminum rims clear coating pilled off. *tr

The speedometer reads faulty speeds, as much as 20 mph over the actual speed. *tr

While pulling a 30 ft. camper at approximately 50 mph the speedometer suddenly went past 120 mph and stayed . i now have no way of determining my speed . the local dealer said i would have to bring it in and leave it at least 3 days . *tr

After driving down the road my speedometer stuck at different speeds. when parked it would say i was going at any speed except 0 mph (for example 120 mph.).

At 78,000 miles speedometer pegged out at 120 mph. pulled cluster panel and pushed needle back down to 0. worked fine for about 3,000 miles. now it is a everyday repair. this is a big safety concern. i love how gm knows when these will fail at 70,000. gm or delphi should step up to the plate and fix this. *tr

Tl*the contact owns a 2005 gmc sierra 2500hd 6.0. the contact stated that he noticed that the speedometer, fuel gauge and heat odometer gave inaccurate readings. the vehicle was inspected at a local repair shop where the contact was informed that the instrument cluster needed to be replaced. the failure mileage was approximately 100,000. the vin was unavailable.

Tl*the contact owns a 2005 gmc sierra 2500hd. the contact stated that the speedometer became non-functional and failed to display the speed intermittently. the vehicle was taken to an authorized dealer who stated that the instrument cluster needed to be replaced. the vehicle was not repaired. the manufacturer was not notified. the current mileage was approximately 106,000. the failure mileage was approximately 88,400.

Tl*the contact owns a 2005 gmc sierra 2500 hd. the speedometer displayed the accurate speed driven. the manufacturer stated that the warranty for the speedometer is covered up to 75000 miles and the failure occurred at 86000 miles which was the current mileage. the contact is concerned about the safety risk involved.

Sudden problems with speedometer. speedometer starts at between 35 and 60 mph at a complete stop then goes up from there well past 120mph when traveling no faster then 60mph. also does not move smoothly but rather very jumpy. this is a very well maintained truck with 54k miles on it. *tr

Replaced every module in the heater system in my 05 gmc sierra several times, and so has just about everyone else i know who owns one. now my wiring harness burned without blowing any fuses. gm should have a recall on this, and find the problems, and fix them, before everyone who owns one goes broke repairing them. *tr

Tl*the contact owns a 2005 gmc sierra 2500 hd. on june 5, 2009, the speedometer displayed inaccurate readings. the speedometer read 120 mph when the vehicle was actually being driven 45 mph. there were no previous failures with the speedometer. the failure mileage was 60,000.

After returning from a day of shopping, i parked my truck at the back, like always. i had been noticing oil spots for the last few days but chalked it up to age and mileage of the truck. after about two hours i saw smoke from the back area where i parked. i ran outside to catch to my surprise! my truck was on fire, i as quickly as possible, grabbed the garden hose and put out the fire! i realized as i looked, that the fire had started at the area under the hood where the fuses, and wiring were located. as i slowly rebuilt my truck, i realized that the fire was not the only problem that i had! the fact of the matter was that if the fire had not shut my truck down, there were a whole array of other problems that i would of had to repair.

Tl*the contact owns a 2005 gmc sierra 2500 hd. the contact heard a clicking noise underneath the dashboard. the cause of the failure was due to a magnetic switch shortage. the dealer stated that the contact would be responsible for the repair cost. the failure mileage was 52,000. updated 04-23-09 *bf updated 04/24/09.*jb

Speedometer was intermittently sticking. (needle would jump up or down, not rotate smoothly with speed changes. this problem lasted approximately 2 weeks. then started reading high or low by up to 50mph. this lasted approximately 4 days. then needle rolled over past the 120 mark and stuck there. no repairs have been made yet. *tr

Tl*the contact owns a 2005 gmc sierra 2500 hd. while approaching a stop sign at less than 15 mph, the speedometer read 40 miles over the actual mileage traveled. the manufacturer initiated a safety improvement campaign to correct the failure on the instrument panel but the mileage on his vehicle was outside of the manufacturer's requirements. no repairs were made to correct the failure. the vin was not available. the failure mileage was under 70,000 and the current mileage was under 90,000. updated 12/07/09 *bf updated 12/09/09.*jb

Tl*the contact owns a 2005 gmc sierra 2500 hd. the contact stated that the speedometer would occasionally remain at zero or display 110 mph. it failed to display the correct speeds. the dealer stated that her model year was not included in a related recall. the manufacturer offered no assistance; however, the contact was advised to have the vehicle diagnosed before they could make any judgments. the recall number was unknown. the current mileage was 58,265 and failure mileage was approximately 35,000.

Speedometer reads wrong. will be doing 55 mph and the speedometer says 120 mph. at a stop it says i am doing 80 mph. gmc wants over $500 to fix this. i am not alone in my complaint there are hundreds, if not thousands of others. check out this website and see what others are saying: http://www.topix.com/forum/autos/chevrolet-tahoe/t2bgkbgi55eknu77c *jb

Instrument cluster failure, tachometer, and speedometer are inoperable, but all other gauges, such as fuel level, battery meter, oil pressure, coolant temperature, and transmission temperature gas are still functioning. own another 2005 1500 with 32,632 which has just started doing the same. *tr

Tl* the contact owns a 2003 gmc sierra 2500 hd. the contact stated that the power steering would seize and the vehicle would hesitate to stop when the brakes were depressed. in addition, the transmission, windshield wipers, cruise control, and the instrument cluster failed. the vehicle was taken to the dealer who replaced the transmission, but the failure recurred. the manufacturer was notified of the failures, but denied any assistance with repairs to the vehicle. the vehicle was not further repaired. the failure mileage was 29 and the current mileage was 100,000.