Has anyone successfully had this issue fixed? I've had my '16 Sierra 1500 Denali in to 3 different GM dealers, tranny fluid changed 3 different times, still drives like shit. Same symptoms as everyone else. Shuttering when coming to a stop, searching for gears in "stop-and-go" traffic, random clunks and hard shifts sporadically, and this metal "ping" sound after moving again from a stop. Also, I have a bad squeak between 1st and 2nd when you are rolling and accelerate. Think of rolling to a stop, stopping, and then pulling out. Most noticeable when transitioning to an include. I can reproduce it all the time and dealers telling me it's just an actuator. Maybe. Or maybe the clutch packs are shot at 40k miles?? So frustrated...