2005 GMC Yukon Electrical system Problems

“My 2005 Yukon 4wd went out. It started as an intermittent problem. The first time I took it to the dealer since it was not currently having problems they were unable to identify the issue. This time it was out for several days before I finally took it in. Although nothing extreme happened, since I was aware of the issue, but if someone was not aware of the issue they could potentially lose control of there vehicle since the traction control system is also disabled in this problem. …”

“2005 faulty Gmc Yukon dash system. Dealer originally told me it was the fuel pump but suggested it might be alcohol in the gasoline. I tried using ethanol free gas and it worked. I couldn't find any ethanol free gas on dec 25th so I had to use 10% ethanol and my entire dash has quit working. I can't tell how fast I'm going, if I have fuel or how many miles I have on my vehicle. The Gmc dealership wants me to replace my fuel pump, dash board and they estimate it will cost around $1500. It worked fine without ethanol!”

“Starting in november 2007, I have been having problems with my 2005 Yukon speedometer. It would either start at 60mph, not go higher than 45mph, and lately it just failed. It's not registering any speed. On july 25, 2008, I was told by a Gmc dealership that my cluster has failed and needing to be replaced. I was also told that these they have seen a lot of these vehicles with the same problem. Supposedly, there was a recall for 2003 and 2005 models having problems with their speedometer.”

“While driving from chicago to milwaukee on 1/26/11 my speedometer started to indicate very abnormal speeds. My portable GPS indicated I was traveling 62 MPH yet my Yukon's speedometer read 110 MPH. When I reached my destination in milwaukee and turned my Yukon off, the speedometer remained at 55 MPH. I immediately googled faulty Yukon speedometers and found a large quantity of sites containing defect information about Gmc Yukon's speedometers. I also read that GM supposedly sent out letters to customers. I can assure you that I never received a letter about this. …”

“Faulty speedometer 2005 Gmc Yukon. I recently saw a news report on faulty speedometers with GM vehicles done back in 2007 and I am experiencing the same problem with my 2005 Gmc Yukon. Currently my speedometer sits at 60 MPH in park and gets pinned at 120 MPH on the road when I'm only moving around 40 MPH. I have contacted Gmc and they told me the warranty on this problem is 5 yrs or 70,000 miles. One problem, I am at 91,000 miles and they told me Gmc mailed out letters stating the speedometer problems. I never received this letter!! Now they are offering to fix the problem for $600!! …”