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grade assist then reduce power on 15 Denali
Hey everyone, I don't know if this is the best sport for this but I need help! I have a 15 Denali with 8 speed. When driving down a step hill my Yukon goes into grade braking mode and about instantly into reduce power mode and I get a very loud noise in the transmission area and the dash...- Mikeb317
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- Forum: Engine & Drivetrain
