NHTSA complaint #11756184

Owner complaint summary

vehicle shifted from 1st to 3rd gear and as I accelerated the engine RPMs drastically increased. The transmission jumped from 3rd to 8th gear and then immediately dropped to 1st gear while I was at 40-45 mph. Due to the speed the back tires locked and the vehicle jumped from 1st to 3rd gear and I stopped. Thankfully I did not have a vehicle behind me, or they would have him me. Dealership determine and confirmed hard/harsh shifting between 3rd, 5th, 6th while skipping 4th and 5th. No codes or warnings found upon download by the technician. Technician could not replicate it shifting from high gears to 1st and locking the tires. Recommended and completed adaptive learn procedure, but vehicle is still hard shifting 3rd and 4th gear. Very concerned the vehicle could downshift from higher gears and lock the tires again which will cause an accident.