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  1. R

    Cylinder Deactivation Failure

    My 2021 Denali 6.2 4 x 4 (13,500 miles)was in the shop for 4 weeks earlier in the year waiting on a fuel pump module. Now it is the shop again for a minimum of 10 days because the cylinder deactivation systlem failed. It is getting new lifters and a head gasket which interesting enough is on...
  2. R

    2021 Yukon Denali 4x4 Fuel Module Backorder

    Got it back yesterday...3 weeks at dealership.
  3. R

    2021 Yukon Denali 4x4 Fuel Module Backorder

    My vehicle with 11,000 miles has been at the dealership for over a week waiting on a fuel module. 8-10 other similar vehicles are sitting there waiting on the same thing. Dealer said March 23 might be when it is fixed. What's going on?
  4. R

    Must Be Running to go to Neutral

    Not AWD (is 4x4) and the issue was how to pull it out of a parking place...nose to a wall in garage...without putting it in neutral. The answer turned out to be a "repo" wrecker that could slip an aparatus underneath and raise the back wheels and pull it out.
  5. R

    Must Be Running to go to Neutral

    You mimd sharing the way?
  6. R

    Must Be Running to go to Neutral

    Thanks. It looks like they failed to notify me about this. It has been to the selling GMC dealer twice for service and this was never mentioned.
  7. R

    Must Be Running to go to Neutral

    It has been confirmed by the dealer as a fuel module issue. There was a recall on this for some VIN's in 2021 but I did not get one. The dealer's parking lot has several Tahoe and Yukons waiting for the back ordered module. Must be pretty widespread.
  8. R

    Must Be Running to go to Neutral

    My 2021 Yukon Denali 4 x4 must be running to shift into Neutral. Found out the hard way when it would not start because of a faulty fuel pump module while parked nose to wall in my condo parking spot. We have 4 floors with three living floors above parking garage. Called road service and they...
  9. R

    Touchless Lift Gate Issue 2021 Danali

    I am having trouble getting the lift gate to open when I pass my foot though the GMC logo shining on the ground. It takes several times to work if at all. Ideas?

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