2020 Ford F-250 SD Transmission Problems

Which parts fail

• Automatic transmission › Control module › Software
  1
• Automatic transmission › Control module (TCM/PCM/tecm)
  1
• Automatic transmission
  1

Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).

Mileage when the problem started

• Under 25k
  622%
• 25k–50k
  14%
• 50k–75k
  933%
• 75k–100k
  415%
• 100k–150k
  622%
• 150k+
  14%

Owner reports

Selected complaints filed with NHTSA by 2020 Ford F-250 SD owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2020 Ford F-250. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the transmission independently downshifted from tenth gear to first gear. The contact stated that while the gear shifter was in drive and the accelerator pedal was depressed, the vehicle lunged forward. The contact stated that while reversing, the accelerator pedal was depressed, and the vehicle jerked backward. The vehicle was taken to the dealer where it was diagnosed with a failed transmission CDF drum. The contact was informed that the transmission CDF drum needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. …

The contact owns a 2020 Ford F-250. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving 55 MPH, the vehicle suddenly downshifted from 8th gear to 3rd gear, causing the vehicle to hesitate as if the transmission was slipping. The vehicle started to self-correct, and the transmission shifted between 5th and 7th gear. The failure occurred twice within 2 weeks. There were no warning lights illuminated. The vehicle was taken to the dealer, who diagnosed that the transmission had failed and needed to be replaced or rebuilt. The vehicle was not repaired. The manufacturer was not made aware of the issue. The failure mileage was 90,879. …

The contact owns a 2020 Ford F-250. The contact stated that upon starting the vehicle and shifting into gear, the vehicle jerked significantly. Additionally, the contact stated that while driving at various speeds, the transmission was slipping and was skipping gear. Additionally, the transmission remained stuck in a gear. The power train warning light was illuminated, and a message advising to see the Owner's Manual was displayed. The vehicle was taken to an independent mechanic, where diagnostic trouble codes indicating that the transmission clutches were slipping, were retrieved. The vehicle was then taken to the dealer to be diagnosed. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 20V365000 (Power Train); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 110,000.

The contact owns a 2020 Ford F-250. The contact stated while driving at undisclosed speeds, the transmission was shifting hard, and the vehicle was jerking. The failure recurred intermittently while the contact waited for the recall repair. The contact was notified of NHTSA Campaign Number: 22V256000 (Power Train) and the recall was repaired; however, the dealer notified the contact that the valve body in the transmission was failing. The failure recurred after the contact came to a stop, and the vehicle shifted hard from tenth gear to first gear. The maintenance required message was displayed. The vehicle was restarted, and the vehicle was taken to the dealer where the valve body was replaced; however, the vehicle was diagnosed with a clutch pack failure. The vehicle was not repaired. The failure mileage was approximately 105,000.

The contact owns a 2020 Ford F-250. The contact stated while driving 25 MPH, the contact abruptly stopped the vehicle and attempted to reverse; however, the vehicle failed to respond as needed. The service vehicle warning light was illuminated. The contact turned off and attempted to restart the vehicle and the vehicle respond as needed. The contact stated that the failure had occurred twice. The contact stated that a dealer was contacted. The contact stated that after the first failure the vehicle was taken to the dealer and the contact was informed there was no fault codes detected. The vehicle then was taken to another dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 63,000.

The contact owns a 2020 Ford F-150. The contact stated that while accelerating from a stop, the vehicle lurched forward and hesitated to accelerate. Additionally, while driving at various speeds, the transmission randomly shifted gear and the gear selector failed to match the gear selection. During the failure, the check engine warning light was illuminated, and the "WRENCH" symbol was displayed. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in NHTSA Campaign Number: 20V197000 (POWER TRAIN). The contact indicated that the vehicle had experienced the failure listed in the recall. The failure mileage was 65,000.

The contact owns a 2020 Ford F-250 SD. The contact stated that while the vehicle was stopped at a traffic light, the transmission failed to downshift from seventh gear, causing the vehicle to jerk. The transmission warning light was illuminated, and the message "Power Train Malfunction - Reduce Power" was displayed on the Ford Mobile App. The contact's neighbor, an independent mechanic, diagnosed the vehicle and determined that the transmission needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 22V256000 (Power Train); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.

The contact owns a 2020 Ford F-250. The contact stated while driving approximately 60 MPH, the vehicle decelerated to 40 MPH and failed to properly accelerate. The contact also stated that while shifting into reverse or drive, the transmission seized in tenth gear and then shifted to sixth gear. The contact stated that he received an alert indicating to see Owner's Manual. No warning lights were illuminated. The failure recurred. The contact then notified the dealer of the failure, and the contact was advised to drive the vehicle 500 to 1000 miles after reprogramming. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 70,000.

The contact owns a 2020 Ford F-250. The contact stated that while entering light traffic, the transmission became stuck between gears. The accelerator pedal was depressed, but the vehicle failed to respond or move. The vehicle was restarted and worked as designed. There were no warning lights illuminated. The vehicle was taken to an independent mechanic who determined that the failure was related to the transmission. The mechanic called the local dealer for the contact and was informed that the vehicle was not under warranty. The contact called another local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 57,000.

The contact owns a 2020 Ford F-250. The contact received notification of NHTSA Campaign Number 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact stated that the vehicle had become inoperable due to a transmission failure. The contact associated the transmission failure with the recall; however, the dealer advised that the transmission repair would be at the owner's expense. The approximate failure mileage was 60,000.

Related recalls

Transmission complaints in other F-250 SD years