2023 GMC Canyon Powertrain & Transmission Problems

Vehicle lurches forward extremely strong when almost stopped, shifting from 2nd to 1st. Common issue with all of these trucks with the 8L80 transmission. Also - this transmission slams into 2nd from 1st when first starting out under light acelleration or drifting down hill.

Our 2023 Canyon AT4 we bought on [XXX] had the same problem as this current VIN number of the 2023 Canyon ( Covert GMC in Bee Caves tx bought back the first 2023 Canyon due to this same exact transmission problem. The vehicle I’m complaining about that was replaced by Covert GMC in Bee Caves Texas on [XXX] still has a unsafe issue with the transmission. I’m [XXX] and I am [XXX]. Almost every time I pull into a [XXX] parking spot, from right or left approach, this vehicle lunges as I get close to the sign post. it occurs at red lights occasionally. This current replacement vehicle has been in for warranty several time .. only to the Same excuse that they can’t duplicate. Common denials Don not fix the safety issue with this truck. It’s dangerous INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While slowly driving, like when parking or trying to park vehicle in garage, it will randomly surge when almost at complete stop forcing vehicle to lunge forward requiring operator to apply quick additional firm braking. It almost feels like vehicle is creeping in 2nd gear and decides to downshift into 1st gear just before coming to a stop and engine applies slightly more throttle. I have almost hit garage wall and other vehicles in parking lots due to this issue. Again, it is intermittent but is alarming when happens. I have not had vehicle in for repairs yet but concerns dealer will not be able to duplicate. No warning lights on dash for this issue.