Automatic Transmission Torque Converter problems of the 2018 Chevrolet Colorado

Tl- the contact owns a 2018 Chevrolet Colorado. The contact stated that when coming to a stop the vehicle would down shift with out warning. The failure happen intermittently. No warning lights illuminated. Bob hook Chevrolet 4144 bardstown rd, louisville, ky 40218 (844) 212-4818 diagnosed and repaired the torque converter and changed the fluid. The contact were still having the same failure. The manufacturer were made aware of the failure. The failure mileage was 12,000. Nd.

My vehicle shakes and shutters when accelerating. I have brought it to Chevrolet of wesley chapel FL 3 times for the same problem. The proceeded to do a "flush" and have replaced the torque converter.

Chevy Colorado a bad vibration in drivetrain. Took truck to dealer who said it was torque converter problem. It has been at dealer for 9 days because they are doing 9 vehicles a day for this problem. Supposedly they are going to change torque convertor, others they just change the oil in torque convertor. This is done approxmately 9 times a week at this one dealer, ross downing in hammond, la. This is the 8sp trans. That is used in several gm rear drive cars and trucks. My truck only has 6300 miles on it. When trying to pass vehicles on interstate it vibrates so bad over 70 mph I am afraid to wreck. Others I have talked to at dealership claim there vehicle vibrates at lower speeds, surges and making noise. This dealership doing 9 a week, that probably is several thousand a week statewide. This is a terrible problem that needs fixin. Many thanks.

Transmission has horrible shifting. Hard shifting at low speeds and when decelerating (feels like I was rear ended). Torque converter was replaced. From low speed, it doesn't downshift to accelerate unless the pedal is floored. Also, there is hesitation/pedal lag from a standstill, which makes it unpredictable when trying to pull into traffic. That part is a real safety convern.