NHTSA Complaint #11231341 — 2016 GMC CANYON

1) <POWERTRAIN> I HAVE 40K ON MY CANYON AND AM EXPERIENCING ACCELERATION ISSUES 0-40MPH 1-3RD SHIFT POINTS (AUTOMATIC TRANSMISSION). THE TRANSMISSION ACTS LIKE IT CANNOT DECIDE TO EITHER SAY IN 2ND OR SHIFT TO 3RD AND THERE'S A LAG OR SURGING AFFECT WHEN THIS HAPPENS. I HAD THE TRANSMISSION FLUID AND TRANSFER CASE FLUIDS CHANGED AR THE GM DEALERSHIP. PROBLEM STILL PERSISTS. 2) <OTHER> KEY GETS STUCK IN THE IGNITION. WHEN PLACING THE TRUCK IN PARK THERE'S AN INTERNAL RELAY/SWITCH WITHIN THE SHIFTER THAT IS SUPPOSED TO ACTIVATE A RELAY/UNLOCK SIGNAL TO THE KEY TUMBLER IN THE STEERING COLUMN. THIS DOESN'T ALWAYS HAPPEN AND THE KEY WON'T TURN TO THE OFF POSITION TO ALLOW IT TO BE RELEASED. I HAVE TO TURN THE KEY TO THE ACC POSITION PUT THE TRUCK IN DRIVE THEN BACK INTO PARK TO GET THE RELAY/SWITCH TO DIS-ENGAGE THE KEY POSITION FROM BEING LOCKED IN ACC.