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2007 Yukon XL Denali won't turn over. Extremely cold out. This is new vehicle for me...has sat for a few days. No lights clicks...nothing. If battery is dead, can it be boosted or recharged? What do I need to do?
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If front park lights are working highly unlikely headlight switch is the issue. Is the vehicle equipped with a trailer towing package and wiring to the rear? I would start there. This vehicle may also have a taillight module located under the vehicle on the passenger rear attached in the wheel well area that goes bad
I'll try to help, everytime something gets replaced on these yukons, that circuit needs to be RESET ! Is there a reset button, on your steering wheel, to reset a variety of functions ? , check owners manual, or call your dealer for better advise
sound like battery has weak or battery terminals and post need cleaning. have battery charged and checked, if battery good. alternator not charging battery. if battery over 5 years old more likely battery is bad.if battery too weak head lights wont turn on battery dead this time of year if battery old. cold weather will finish it out.
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{: ) I wonder how the cables were checked. Did it pass the 200mv voltage drop limit for the negative and positive cables? And do you happen to observe other disturbing symptoms while driving?
You can also try swapping your starter relay (at the underhood fujseblock) with a similar one, also check the relays corresponding terminals on the fuseblock for proper tension. The fuseblock terminals may have loose contacts withe the starter relay.
As for the warranty, it depends on your sales details witn your dealer. Normally a 2007 model is already out of warranty.
It sounds like the battery has a dead cell in it. Replace the battery. If you have an alarm installed remove the in line fuse from the alarm and see if that stops the battery drain.
We had the same issue with our 2007 Yukon Denali XL. Died on us twice after sitting for short periods of time; once we watched a DVD with the engine off and battery died within 10 minutes. The dealership kept it overnight to troubleshoot why the battery died so quickly. They said the radio was "pulling" too much from the battery. (They supposably fixed it) But again a few days later the battery died again after sitting overnight. We brought it back to the dealership and they brought in a GMC "expert" to replace the entire DVD/CD/Navigation system. They also replaced our battery with a much larger battery, similar to the ones that GMC puts in there diesel trucks. They had our Denali for 5 days, but it appears to be fixed now.
Getting it fixed correctly wasn't without headaches, but it was all covered under warranty, including the battery. And they are updating the nav w/ the new edition disc as well for no charge.
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