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    Lights flickering

    Did you try unplugging the wire that runs to the BCM? I replaced the alternator twice over the last few years before discovering this and would hate for others to go through the same waste of time and money.
  2. T

    Lights flickering

    Old thread I know but I wanted to help shed some light on this, something I just found out tonight. I've been dealing with a similar issue for YEARS on my 07 Yukon XL SLT. Have had the alternator changed twice because of it. All lights would randomly flicker at idle or sometimes driving with...
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    Service battery charging system.

    Hey just curious...how did the fix go? Is everything still working after all this time? I have been having the same problem for over 2 years now. Have had all the tests done as well as the alternator replaced, battery replaced, and the problem keeps coming back. Lights are bright when...
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    Tail lights quit working

    Hi...new to the forum. My 2007 Yukon XL has developed an irritating problem. Replaced the tail lights due to one being smashed out about a year and a half ago. Worked fine until early this year but doubt it's related, except harness for driver's side had fallen off the lame plastic tab that...

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