What 1,425 owners told NHTSA about the 2015 Ford F-150 Supercab Diesel

The contact owns a 2015 Ford F-150. The contact stated that while driving 75 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the check engine warning light illuminated, and the vehicle stalled. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure; however, the contact was requested to pay a diagnostic fee. The contact stated that due to the persistent failure, the contact was fearful of driving the vehicle. The contact stated that the failure had occurred four times. The manufacturer was made aware of the failure, and a case was filed. The contact referenced an unknown recall; however, the VIN was not included in the recall. The contact was advised to contact the NNHTSA Hotline to report the failure. The failure mileage was approximately 80,000.

NHTSA ODI 11674463

The engine while operating at normal speed loses power to a rough idle and is remedied by putting the vehicle in park and restarting the engine. The engine never fails to start after restarting, but could fail at any moment, short or long term.

NHTSA ODI 11672034

The contact owns a 2015 Ford F-150. The contact stated that while operating the vehicle, the check engine warning light remained illuminated. The vehicle was taken to an independent mechanic who replaced the catalytic converter and Oxygen sensors. The vehicle was repaired; however, the failure reoccurred. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure and informed the contact that the vehicle was not under an Extended Warranty coverage related to the failure. The failure mileage was 90,000.

NHTSA ODI 11670999

Problem: Engine unexpectedly goes to idle speed after accelerating up to highway speeds. Cruise control was not engaged at time of failure. This has happened three times, all after a cold start up, and all within 2 miles of home. The most recent occurrence being 6-19-25. At time of failure, multiple warning screens come up on the dash, including "Hill Start Assist Not Available", "Service Advance Trac", "See Manual" (with a picture of a wrench). No check engine light comes on, and no error codes are set. Engine does not respond to accelerator pedal, engine will only idle roughly. When this occurs, the only remedy is to pull over to the side of the road, shut off the engine, then restart the vehicle. Each time this has happened, the engine starts and runs normally with all warning messages cleared from dash. Safety Concern: Unexpected loss of power can increase the likelihood of an accident, especially in heavy traffic. This truck is used frequently for towing, and an unexpected loss of power can create a loss of trailer control. Dealer Contact: Last September when this issue initially cropped up, the truck was taken to our Ford dealer for diagnosis. They kept the truck for approximately two weeks, driving it daily without having the issue reoccur. They performed diagnostics on electronic modules but found no concrete issue. Inspection: Truck has not been inspected by the manufacturer, only the dealer. Warning Lamps and Messages: "Hill Start Assist Not Available", "Service Advance Trac", "See Manual" (with a picture of a wrench)

NHTSA ODI 11668099

Truck is at 135,000 miles and needs its 3rd oil pan due to faulty engineering. Ford is not covering repairs or offering assistance for previously repaired products. I bought truck certified pre-owned with extended warranty. The oil pan was cracked at that time and needed to be replaced at first service. On average oil pans are lasting less then 70,000 miles. How is this allowed to continue to occur.

NHTSA ODI 11666691

Intake manifold actuator fails prematurely. Code P2007 and P2005

NHTSA ODI 11665991

Truck down shifts hard while driving. Hill assist warning light comes on and truck goes into limp mode and looses power going 60 mph. Pull over truck runs very rough. Turn truck off and back on screen says hill assist not available. Press ok and truck runs normal again. Happens every few days. Definitely could be dangerous if it happens on a bigger highway. Has happened 5 times over last few weeks at different speeds.

NHTSA ODI 11662170

The contact owns a 2015 Ford F-150. The contact stated that while driving in cold weather and attempting to depress the brake pedal, there was a rattling sound coming from the engine. The contact stated that the check engine warning light was illuminated. A dealer was contacted. The vehicle was taken to a dealer where it was diagnosed and determined that the rattling sound was coming from the cam phasers and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The contact was transferred to NHTSA Hotline to report the failure. The approximate failure mileage was 116,000.

NHTSA ODI 11662211

The contact owns a 2015 Ford F-150. The contact stated that while driving at undisclosed speeds, there was a misfire coming from the engine. The contact stated that the ignition coils had melted and were replaced four times. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the PCM needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 153,000.

NHTSA ODI 11658508

Pulled into traffic and car had sudden loss of power, several alerts showed up and car could not move and just idled.

NHTSA ODI 11657085

The contact owns a 2015 Ford F-150. The contact stated that while the vehicle was at the dealer for routine service, the contact was informed that the engine oil pan was faulty, and oil was leaking from the oil pan. The contact was informed that the oil pan needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 33,000. The VIN was not available.

NHTSA ODI 11655480

Transmission abruptly shifted down from high gear to low gear causing it to lock up at a fast speed. My son hit his chest on steering wheel bc it was so abrupt

NHTSA ODI 11654087

I was driving at around 45mph and my truck suddenly downshifted automatically and almost brought me to a complete stop. It finally shifted back up and I was able to return to the proper speed. If this would have happened at higher speeds I could have been in an accident. Event at 45mph, had I not had my seatbelt on it would have thrown me into the steering wheel.

NHTSA ODI 11651406

Broken exhaust bolt on passenger manifold. Exhaust leak... Felt as though Carbon monoxide gas was entering cabin portion of truck. Smelling of exhaust in cabin of vehicle. Made wife and kids nauseated and lightheaded. Did research and found out that ford had a poorly designed manifolds and didn't utilize all exhaust bolts. In turn caused the #8 bolt to snap and manifold to warp and release exhaust fumes

NHTSA ODI 11650698

Truck will on occasion downshift into a low gear out of nowhere and feels like the rear axle is going to rip out of the truck.

NHTSA ODI 11650782

The contact owns a 2015 Ford F-150. The contact stated while driving at various speeds, the vehicle failed to maintain the desired speed while the accelerator pedal was depressed. Several unknown warning lights were illuminated. The vehicle was taken to a local independent mechanic, where it was diagnosed; however, the cause of the failure was unknown. The contact stated that unknown repairs were completed by the local independent mechanic. The vehicle was repaired but the failure reoccurred. The vehicle was scanned with an OBD2 scanner and DTC: P061C was retrieved. The local dealer was contacted. The vehicle was not diagnosed or repaired for the recent failure. The manufacturer was made aware of the failure. The failure mileage was approximately 147,000.

NHTSA ODI 11650395

I was traveling [XXX] near Liverpool, PA at 60mph, the truck flashed a quick code on the dash and then suddenly downshifted from 6th gear to 1st almost spinning the truck as the rear wheels locked up momentarily. It would not upshift past 3rd gear and had to travel 35 miles home like that. I called my local Ford dealer (Parsons) and they said bring the truck in for diagnostic testing, so I did. Meanwhile I searched the internet to see if others had the issue. Turns out they did, BUT my 2015 with the 6R80 was NOT in the recall notice. Ford said it was the lead frame and needed to be replaced. IF it was a known problem, why not inform owners of these trucks. That said, Ford wanted $1500 to fix it, BUT they did not have the part. So I drove the truck (never with my family in it ever again) after I cleared the code with my reader...again traveling [XXX] @ 75mph it downshifted IN TRAFFIC. Luckily I was in the right lane and made a quick move to the shoulder to avoid being run over. In Carlisle, PA there are hundreds of trucking companies and warehouses, so the truck traffic is very heavy. That was it. I searched out the part, paid for it myself and had a Ford mechanic that does work on the side fix the truck. I have been a loyal Ford guy for over 30 years...I reached out to Ford via telephone, chat and even Facebook. All they say is it is NOT under any recall. Hard to swallow that when I am driving a $75K truck THEY built and they will NOT stand behind a $2K fix. Well goodbye Ford, as a business owner for over 25 years. If I make an error I fix it NO MATTER what. I gave Ford the opportunity to stand behind truck and they did...JUST FAR behind it and passed me as I sit on the shoulder of the road. This in my opinion INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11650415

I have had the gasket for the oil pan fix two times. It is leaking again and told by ford that it will happen again. It is 1200 to have it fixed plus they have to keep it for a few days to make sure the seal is dry. If you do not check the oil all the time it could be low and lock up. I know other people that have had this problem. It is on the 2.7 Eco boost.

NHTSA ODI 11650651

During the course of driving on the interstate at 70mph the vehicle decelerated and went to a lower gear. The dash panel of the truck did not show all of the gears available. An emergency stop on the side of the road and turning the vehicle off and back on temporarily resolved the issue. It occurred intermittently and without warning. The truck continued to show problems and was taken to a transmissions shop which checked the transmission, replaced a line for a small leak and said everything seemed to be in order. The cause was not found to be a lack of transmission fluid as the levels were normal. The truck continued to intermittently decelerate. The last time that occurred, the back wheels locked up while on the road. The truck is now sitting due to the safety risk it poses and the locked up transmission on the rear end. It is available for inspection upon request. My safety and that of others was at risk. The problem was not replicated in a service center. The vehicle was inspected beforehand but not after the last issue, (it needs a tow as the back wheels are frozen). There was a warning light for the engine camshaft that came on and the problem was diagnosed at Ford as a camshaft issue though they could not understand the deceleration issue. The truck was taken first to Ford then to an independent transmission shop. Due to the issue the truck is not in use.

NHTSA ODI 11650333

[XXX]: check engine light was on and codes P2196 and P2198 were present. The dealer suspected it was the purge valve, causing the problem so they replaced it and reset the codes. 10/10/24: I brought the truck in to have it looked at due to the check engine light being on again. I was told the lead frame needed to be replaced but was on backorder. The bill to diagnose this was 196.80 and I was told I could still drive it. On [XXX], I had to bring my truck in to be inspected because while I was going about 70 mph it all of a sudden downshifted and jerked me forward like it was going to abruptly stop. The check engine light came on and I had to drive pretty slow to avoid a breakdown on the interstate. Very scary to have this happen in interstate traffic It could have easily caused an accident. At this time, It was brought to my attention that the downshifting could also be related to technical bulletin 1495. Since we couldn’t get a real definitive answer on what was going on and the lead frame was on backorder, I decided to try and have the case connector in the bulletin removed and replaced as well as do a transmission tuneup on 10/23/24. This bill cost me $383.77. All codes were cleared and all appeared to be working correctly. On [XXX], I was driving on the interstate at about 70 mph and my truck seized up again and jerked forward, again scaring me and potentially causing an accident. I drove it very slowly directly to a repair shop. It was there until November 7, 2024 after the lead frame was replaced. That bill cost me $1321.68. I decided to file this complaint after I had seen a news article that this downshifting was being investigated for the same year as my 2015 Ford F150 for a safety issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11650362

Drive mode lights on dash (P,R,N,D,M,2,1) start alternating while driving then vehicle will not stay engaged in any drive mode, vehicle appears to go into limp mode with no drive mode lit on dashboard. This is extremely dangerous. Vehicle codes found are P0706 and P0707. Ford case number is [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11643126

The contact owns a 2015 Ford F-150. The contact stated that while the vehicle was in for a routine oil change, the mechanic discovered that engine oil was leaking from the oil pan. The contact was informed that the oil pan needed to be replaced. The vehicle was not repaired. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not notified of the failure. The failure mileage was 102,000.

NHTSA ODI 11640846

The contact owns a 2015 Ford F-150. The contact stated that while the vehicle was parked, the vehicle started to leak coolant. The contact stated that while driving 65 MPH, the engine started to overheat. The temperature gauge registered a high temperature. The vehicle was not taken to be diagnosed. The local dealer was not contacted. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 148,000.

NHTSA ODI 11639384

Exhaust manifold leak because of poor engineering at approximately 55000 miles

NHTSA ODI 11639501

The contact owns a 2015 Ford F-150. The contact stated that upon taking the vehicle to the dealer for an oil change, the dealer informed the contact that the vehicle was experiencing an oil leak. There was no warning light illuminated. The vehicle was then taken to Mark's Auto Repair, where the contact was informed that the plastic-based oil pan was deformed and was leaking. The mechanic determined that the oil pan needed to be replaced. The vehicle was not repaired. The contact related the failure to TSB Number: 19-2205. The manufacturer was notified of the failure and informed the contact that the VIN was included in the TSB. The failure mileage was approximately 163,000.

NHTSA ODI 11637965