NHTSA Complaint #10958245 — 2016 GMC CANYON

I PURCHASED A 2016 GMC CANYON IN JULY 2016. I NOTICED HESITATION WHEN I ACCELERATE, ESPECIALLY WHEN IN TRAFFIC, GOING UPHILL OR ROUNDING CORNER. I RESEARCHED MANY FORUMS AND FOUND THE TRANSMISSION HAS A LEARNING PERIOD WHERE IT DOES THIS AND ADAPTS TO YOUR DRIVING, NORMALLY WITHIN THE FIRST 1000 MILES. HOWEVER, IT HAS BEEN 13,000 MILES LATER AND ALMOST A YEAR, AND IT CONTINUES TO HAVE THIS HESITATION AS BAD IF NOT WORSE THAN IT DID INITIALLY. GMC HAS CHECKED IT OUT, GAVE IT A TEST DRIVE AND SAID IT SHOWS NO CODES SO THEY OFFER NO HELP. ALL OF MY PASSENGERS NOTICE THIS HESITATION WHEN IT HAPPENS. THE BEST WAY TO DESCRIBE THIS HESITATION IS WHEN YOU PUSH THE GAS, THE TRUCK ACTS LIKE IT DOESN'T WANT TO GO AND IT BECOMES SHAKEY. IN SITUATIONS WHERE I'M MERGING ONTO TRAFFIC, THIS COULD BE DANGEROUS, AS I HAVE HAD TO FLOOR IT TO MAKE IT ACCELERATE. FOR A NEW VEHICLE, THIS IS UNACCEPTABLE AND I FELT SAFER IN MY 2001 SIERRA THAN I DO IN THIS. THE FACT THAT GMC WILL NOT OFFER ANY WAY TO FIX THIS ADDS TO THE FRUSTRATION. NO MATTER WHAT THEY SAY, IT IS NOT NORMAL FOR A VEHICLE TO DO THIS.