hey all,
so i have a 2018 denali, bought new. truck came with the 6.2l.
so truck seems to vibrate/ shutter, shake when it's changing gears and steady at 100 km an hour.
i took it into the dealer and they said my tranny fluid was burnt and changed it. it's now back to smooth riding.
my question is two fold, has anyone had issue with the tranny fluid?
next i had a pedal commander installed and left it on the sport+ setting, could that have caused the tranny fluid to go bad? i'm not sure i want to install the pedal commander back in the truck until i know why the fluid went bad so quick.
oh, i've had the truck for 1 and half years and it's only got 55000 km on it.
thanks