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GMC Yukon Denali Electrical Problems

5 messages,  Last post on Nov 12, 2009 at 3:04 PM

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What is this discussion about? GMC Yukon, GMC Yukon Denali, GMC Yukon XL, Electrical, SUV

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#1 of 5 GMC Yukon Denali (2005) Electrical Issue by texasaggie97 Aug 28, 2009 (6:45 am)
I'm hoping someone else has had this problem with their Yukon Denali. Since 2005, when we purchased the vehicle, we have had an electrical issue where at random times the entire electrical system will "reset" while driving.   The DVD Navigation/radio resets, the DVD Entertainment system in the back resets, the speakers sound like they "pop" as if the audio stream is interrupted, and all lights inside do a quick on/off reset.   Even the engine hours reset a couple of years ago. It currently shows 1000 hours but should be over 2000 hours by now.   Since this problem is random and we haven't found a way to reproduce it, every time we take it into the GM repair center they say they can't do anything about it. Finally, when the driver side air conditioning vents started blowing hot air, we were able to take it in for that and have asked them to check the electrical system.   I'm hoping someone had this power/electrical system reset problem and knows what was done to fix it properly. The 100,000 mile warranty is about to run out and I don't want to have to pay to get a permanent problem fixed when it has been doing this since 2005!   It is currently at the GM repair show waiting the actuator replacement on our air conditioner and want to be able to tell them a possible "solution" or a way to "recreate" the electrical reset problem if anyone knows anything about it. Replies to this message: texasaggie97 (Sep 15, 2009 8:33 am)
#2 of 5 Re: GMC Yukon Denali (2005) Electrical Issue [texasaggie97] by texasaggie97 Sep 15, 2009 (8:33 am)
Replying to: texasaggie97 (Aug 28, 2009 6:45 am) So I'm getting SCREWED on both ends by the GM repair center AND Warranty Direct (my extended warranty). WD is asking GM why a failure occured in the amplifier of my SUV and the GM repair personnel WILL NOT contact the engineers at GM to find the answer. Instead they REFUSE to do the repair work on the speakers that went out last week.   ANYONE HAVE THIS PROBLEM????
#3 of 5 Dash lights, info center, thermostat control lights by jeeper81 Oct 01, 2009 (7:20 pm)
i have an 04 yukon denali. the dash lights, the info center, the nav/stereo backlights, and the thermostat control lights all quite working the other day. i cannot think of anything that may have caused it. all of the equipment seems to be working, found a bad fuse under the hood that got the stereo working again. all that equipment would not be working on one fuse would it? in the fuse layout, there does not seem to be one fuse that controls everything. should i run by the dealer, look for relay issues, keep checking fuses, could it be a bad instrument cluster or computer problems? thanks for reading, any input will help. Replies to this message: fixitrod (Oct 24, 2009 5:08 pm)
#4 of 5 Re: Dash lights, info center, thermostat control lights [jeeper81] by fixitrod Oct 24, 2009 (5:08 pm)
Replying to: jeeper81 (Oct 01, 2009 7:20 pm) I am having a similar problem with my 2003 Yukon XL SLT in which the backlight for the instrument panel and illumination of the 4WD switch are out. I pulled all fuses for these items and they are good. After replacing the 4WD fuse I noticed a red light on the switch I had not noticed before. I just had this switch replaced 15K ago and wfter the service guy invited me in for a 250.00 date(get me twice shame on me) he mentioned it could just be the contacts of the switch and yes it could all be related...no thanks. I took out the cluster to replace the bulb ala Haynes but apparently its not a simple bulb for this year. I found a guy on Ebay motors however who "rebuilds" for 60.00 so its got to be away to replace. I have a salvage truck source which I have been getting restoration parts off of. Looks like I should have gotten the cluster last time I was there. I am concerned because of the mileage display issue. I may have to go with the rebuild guy here is the link for Brians Speedo Repair http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=220491129958. Let me know what you do. I am going to clean off the contacts on the 4wd switch and see what happens.I see the bulbs back there but it looks like a "knowhow "issue as to how to get them out so this gut must have a manual or something. Why didn't they just keep the simple bulb...dang. Love my truck but see why folks get annoyed at GM
#5 of 5 Electrical issues almost everywhere by evogel Nov 12, 2009 (3:04 pm)
I am having electrical issues with my 03 Denali my mirrors won't stay in memory as well my electric seats won't either and the heated seat sometimes comes on and now the left rear passenger window won't go down and the radio shut off for no reason. It wouldn't come back on I took the fuse out and put it back in and the radio was working fine.I also bumped the onstar button and i was listening to someones conversation with onstar. The thing was they were in Georgia and I live in Phoenix, AZ. I am not sure how to disconnect the onstar. I ran the scanner on my vehicle as well my mechanic ran a diagnostic and we both found nothing. It did this about 1 month after I bought it and the dealer found nothing. Go figure. I am worried at 85k that it might be the computer or module. I heard they run around $1000.00. I love this vehicle just frustrated with all the problems with it. Anyone else had any of these problems your input would be greatly appreciated.

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