2017 Ford F-250 SD Transmission Problems

Mileage when the problem started

• Under 25k
  318%
• 25k–50k
  529%
• 50k–75k
  318%
• 75k–100k
  16%
• 100k–150k
  424%
• 150k+
  16%

Owner reports

Selected complaints filed with NHTSA by 2017 Ford F-250 SD owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2017 Ford F-250. The contact stated while driving 55 MPH, the transmission unexpectedly downshifted, and threw the contact forward. The contact then stated that the vehicle began to hesitate upon depression of the accelerator pedal with the "WRENCH" symbol displayed. The vehicle resumed normal operation soon after the initial failure; however, the failure returned as the contact drove up a driveway incline. The vehicle began to hesitate upon depression of the accelerator pedal before the contact was able to safely park the vehicle. The dealer was notified of the failure and the contact was informed that there were no recalls on the VIN for the failure. The vehicle was then taken to an independent mechanic where the vehicle was diagnosed with a defective lead frame. The vehicle was repaired. The manufacturer was not notified of the failure. …

Vehicle was parked on a hill. At the time the vehicle was pulling a light weight trailer (empty). The vehicle was in park when the engine was shutoff. Owner went inside the house, came back out 5 minutes later to find the vehicle had rolled unattended backwards causing the trailer to jack knife. The result was damage to the truck and trailer. This was very lucky considering another vehicle could have come over the hill and hit the truck and trailer and people could have been injured. This is the third instance of this truck rolling unattended. I have contacted Ford, written complaints. A recall was released that fixes a known transmission issue with near VIN numbers but it does not effect this vehicle. Please help.

The contact owns a 2017 Ford F-250. The contact stated while driving 55 MPH, the vehicle unexpectedly downshifted to first gear and then resumed functionality. There was no warning light illuminated. The contact stated that the failure recurred while driving on several occasions. The vehicle was taken to the dealer, where it was diagnosed that the lead frame had failed and needed to be replaced; however, the part to repair the vehicle was on backorder. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under recall nor warranty. The failure mileage was approximately 64,000.

The contact owns a 2017 Ford F-250. The contact stated while driving approximately 65 MPH, the transmission unexpectedly downshifted from six gear to first gear, causing the vehicle to abruptly decelerate, causing the driver to almost lose control of the steering wheel. The vehicle was later examined by an independent mechanic who diagnosed and determined that the power train control module needed to be reprogrammed. The power train control module was reprogrammed, and the vehicle operated normally. The manufacturer was notified of the failure, but no assistance was provided. The local dealer was not contacted. The failure mileage was 102,900.

The contact owns a 2017 Ford F-250. The contact stated that while driving at approximately 45 MPH, there was a jolt and a knocking sound coming from the transmission. The vehicle had seized in second gear and failed to accelerate above 15 MPH. The transmission warning light was illuminated. The vehicle was taken to the local dealer where it was diagnosed that the lead frame module needed to be replaced. The vehicle was repaired but the failure recurred. The manufacturer was notified of the failure and the contact was referred to the NHTSA Hotline. The failure mileage was approximately 46,800.

The contact owns a 2017 Ford F-250. The contact stated while driving 60 MPH, the vehicle lost motive power with the engine power reduced message displayed. The contact pulled over and turned off the vehicle. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the fuel lines were cracked. The vehicle was repaired. The manufacturer was contacted and stated there was no recall for the failure. The contact was referred to the NHTSA Hotline for assistance. The approximate failure mileage was 100,000.

The contact owns a 2017 Ford F-250. The contact stated while driving at approximately 10 MPH, the vehicle unexpectedly upshifted and downshifted. The contact stated that the failure was intermittent. The failure had occurred on several occasions. No warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed; however, the cause of the failure was unknown. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 150,000.

The contact owns a 2017 Ford F-250. The contact stated that while the vehicle was turned off and parked on an incline, the vehicle inadvertently rolled backward with the transmission shifted into park(P). The contact related the failure to NHTSA Campaign Number: 17V225000 (Power Train). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 75,000.

The engine light activated on the dash randomly while driving. My truck was experiencing loss of power and for the next few days and reduced fuel mileage. I checked the engine code and learned it is a common error with 2017 Ford Super Dutys with the 6.7L diesel engine. The code is "DTC P203B", sometimes indicated as P203B00 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing reductant level sensor circuit range/performance. I believe this error in manufacturing is a safety risk because it is common within these trucks and can leave motorists stranded or potentially disable the vehicle in the roadway causing a traffic hazard.

Driving the vehicle and the transmission jerks really hard shifts from 6th gear to 1st gear. This happened while I was driving it. It loses power and won't go the check manual wrench pops up and then the check engine light comes in. I was doing 50mph when this happened for the second time. First time I was doing 45mph. The dealership I had gotten it from worked on the truck and replaced the computer and it still popped up the same code. Hadn't had the truck 3 weeks when the first incident happened. Then they had it for 3monhs and got it back saying it was fixed and it done it again on my way home from work. The transmission jumps gears while driving without warning or anything. Put my life and others in harm.

Related recalls

Transmission complaints in other F-250 SD years