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99-00 GMC Yukon Denali - Electrical bugs

Discussion in 'Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)' started by jgrimmster, Jun 16, 2013.

  1. jgrimmster

    jgrimmster New Member

    I am experiencing the below problems on my Yukon Denali, any information from those who have experienced these types of issues would be appreciated.


    • Occasionally the stereo will stop working, no power, when the truck is put in any gear besides park. When this occurs the windows and door locks will sometimes stop working.
    • Headlights will sometimes come on when it is getting dark and sometime they have to be turned on manually.
    • Sometimes the truck cannot be shifted out of park without turning the steering wheel first.
    • The highest setting on the AC/Heater fan turns the system off
  2. Pikey

    Pikey Moderator Staff Member 2 Years ROTM Winner 1000 Posts

    the fan setting sounds like a bad blower motor resistor. The other issues could be caused by a bad bcm. The 99-00 yukon denali were one of the first trucks that gm produced with a bcm. it is located in the center console. I have seen tons of odd issues occur due to a bad bcm in those year trucks.

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