2021 Ford Ranger

Harsh shifting into D, loss of power when accelerating while cold. Sometimes would start across an intersection then buck, loose power and slow down then SLAM back into gear and chirp the rear tires. Technical Service Bulletin 23-2350 was performed on 11/15/2023 which updated the trans tables and cleared some codes. This helped the issue for about a week but then truck was in again on 1/22/2024 for TSB 23-2350 a second time which replaced the CDF drum. A month later, 800 miles, 2/18/2024 truck shifted HARD while in cruise control on the turnpike in traffic and lost power. DTC P0766 check engine light came on and truck would no longer move. Transmission fluid sprayed under truck. Had to be towed to dealership. Clutch Valve D was replaced. Two months have gone by and the hard shifting into D and occasional complete loss of power still occurring. Waiting for the next check engine light to appear to take it in again. I now drive very conservatively because I don't know if it will stop moving half way across an intersection again.

10 speed transmission issues: hard shifts, feels like slipping while in gear and driving, transmission "lunged" at a STOP sign jerking the truck forward, transmission "bangs" during some upshifts, transmission "bangs" at a full stop feeling like being rear-ended. Erratic shifting and unexpected forward lunging are a safety issue of myself and other drivers. Have not asked dealer to investigate yet. No warning lamps or messages. Unable to reliably replicate the issues.

The contact owns a 2021 Ford Ranger. The contact stated that the vehicle had previously been involved in a crash due to unintended acceleration, which caused the contact to rear-end another vehicle. The vehicle had body and paint repairs performed; however, the vehicle later experienced jerking, and the transmission was seized while driving. The transmission warning light was illuminated. The dealer was made aware of the failure; however, the vehicle was not diagnosed or repaired. The dealer confirmed that there was no recall associated with the VIN. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 79,000.

The contact leased a 2021 Ford Ranger. The contact stated that while driving at an undisclosed speed, he noticed a cloud of white smoke coming from the exhaust. The contact then stated that while driving at various speeds, the vehicle failed to shift into the intended gear. Additionally, the contact stated that while shifted into drive(D) or reverse(R), he heard a clunking sound and while shifted into park(P), the vehicle rolled several inches further than normal. No warning lights were illuminated. The vehicle was taken to the dealer where it was diagnosed; however, the contact was not informed of what needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact stated that while driving at an undisclosed speed, he noticed a cloud of white smoke coming from the exhaust. No warning lights illuminated. The dealer was notified of the failure and the vehicle was then towed from the residence back to the dealer where the contact was then informed that the transmission was previously replaced. The vehicle was then towed to a different dealer where it remained. The contact stated that service was denied. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 40,000.

On multiple occasions the transmission has slipped when changing gears .This has happened when trying to merge into traffic . One time almost causing someone to rear-end me . It also fails to downshift some times when stopping , causing me to brake much harder than normal . I will be taking it to the dealer soon , to see if this can be fixed . These issues can be a little scary at times . There have been no warning lights or messages . This has happened at least a dozen times now . The first incident with the transmission I think started in 10/2022 . it was sporadic at first , but seems to happen almost daily now .