2021 Ford F-150 Hybrid: check engine light

Filed Oct 10, 2026 · Electrical, Transmission · TX

I picked up my F-150 Powerboost from the Ford dealership after getting and oil change. Recorded mileage was 100,385 (just 385 miles out of the 100,000 EV warranty. Just 2 hours after getting it back the check engine light came on for P0B24 for hybrid battery failure. The Ford dealership diagnosed the issue and confirmed the entire hybrid battery has to be replaced. I requested Goodwill assistance from Ford being that it was <500 miles out of warranty. Ford denied the request immediately. The Ford service department wrote them an email with official confirmation of the issue and the timing of the issue starting. Ford denied their request for Goodwill assistance/financial help within 20 minutes of the request. The repair is $5,000+ out of pocket.

Filed Oct 5, 2026 · Engine, Fuel system · ID

While traveling home on a 2 lane highway 55 on a busy Sunday, the truck started misfiring and jerking, shaking then stalled. Engine light was flashing and we were able to pull off to side as it stalled. After a short time we proceeded on the highway, as we were in a precarious position, about 3 miles and it began misfiring and stalled again. This could have been a tragic situation had there not been a pullout with our travel trailer. We had to have our truck towed to the ford dealer and our RV towed home. While seeking similar cases online we believe it to be a fuel pump driver module and contamination. Our truck VIN is not currently on the national recall list and feel it should be.

Filed Sep 27, 2026 · Fuel system · TX

I have checked fuel door close and open properly but still the sign shows. I am afraid of engine light comes on later

Filed Jun 3, 2026 · Transmission · ID

At a stoplight the truck began running rough. When the light turned green, the truck failed in just 3 blocks (approximately 1 minute). Power was greatly reduced. Check engine illuminated on dashboard, then another red icon, followed by a stop safely now message. Immediately I attempted to pull over from the left lane to the right lane but the truxk Immediately stalled across both lanes, blocking all traffic. Ford dealer has ordered a new fuel pump and the repair is pending.

Filed Jan 25, 2025 · Transmission · AL

Multitude of transmission problems, Have smelt clutches in the transmission burning very strongly twice now. Hard shifting up shifting and downshifting. Slamming into gear almost locking up the back wheels. Has failed to move with transmission binding up putting it in reverse. Multiple slippages and different gears. After the truck is stopped at a light for 10 to 30 seconds there will be a hard clacking sound and the transmission that can be felt in the floor. Extreme hesitation almost causing an accident pulling out into traffic. Check engine light one time for faulty Park solenoid and the vehicle would not come out of park. Disconnected and reconnected the batteries. Cleared the code and finally got it to come out of park. The code cleared after 3 days. Was working with the dealership over the phone remotely at the time with it. They said it disappeared and they didn't know why. Transmission has been flushed at 50,000 miles by ford dealership. Ford dealership has done a reprogramming on it so far. Transmission still had problems had a Ford take a ride with me. He stated that it need to be rebuilt or replaced. Ford dealer is dragging their feet to do anything. I have many text messages into the service writer updating him of new problems and current problems as they occur. They are fully well aware of the issues. I drive a lot like 6,000 miles a month and I think they just don't want me put miles on their loaner vehicles for their faulty transmission problems. I purchased the vehicle in February 2024 problems have been occurring since purchase.

Filed Jul 29, 2024 · Transmission · VA

Check engine light on . Ford says exhaust heat exchanger bypass valve. I see online multiple people are having the same issue . Seems to be a common issue with this vehicle . They are saying it’s not a part of the power train warranty although it’s attached to the power train . This is a safety issue. With the amount of posts about this issue I’m surprised it isn’t a recall already.

Filed May 23, 2024 · Engine · 150,000 miles · CA

The contact owns a 2021 Ford F-150. The contact stated that upon attempting to start the vehicle, the vehicle failed to start. The check engine warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed with transmission and a battery failure. The vehicle was partially repaired. The vehicle remained at the dealer. The manufacturer was made aware of the failure and advised the contact to call the federal safety agency Hotline to report the failure. The failure mileage was approximately 150,000.

Filed Mar 19, 2024 · Engine, Transmission · 77,000 miles · MA

The contact owns a 2021 Ford F-150. The contact stated that while her husband was driving 15-20 MPH, the gears locked up. The contact stated that the check engine warning light was illuminated. The vehicle was restarted, and the check engine warning light was flashing. The vehicle was taken to the local dealer, where it was diagnosed that the cam phaser needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and offered to cover 70 percent of the cost of the repair. The failure mileage was approximately 77,000.

Filed Sep 21, 2023 · Engine, Suspension · 15,500 miles · IA

The contact owns a 2021 Ford F-150. The contact stated that while driving at undisclosed speeds, the vehicle overheated, lost motive power, and stalled. While driving, there was an abnormal clucking noise detected. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the axle bolt and spacer were missing. Additionally, the exhaust system needed to be replaced. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 15,500.

Filed Jun 19, 2023 · Driver assistance, Transmission · MD

(June 14, 2023) While traveling at 55mph the vehicle suddenly accelerated for about 2-3 seconds and several dashboard lights turned on and flashed not available. (ABS, Traction control, Blinds Spot, pre-collision) I safely pulled over turned the truck off, waited a few seconds. Turned the truck back on, and ABS light was solid on the dashboard. I drove another 15 miles stopped again, and when I restarted the check engine light remained solid. After inspecting the truck, I found gear oil leaking from the right rear tire. I removed the plastic hub cap and discovered sheared off axle bolt. Truck was delivered to dealer for repair.

Filed Apr 6, 2023 · Engine, Fuel system · NY

For months have been having two issues with my 2021 F150 Powerboost with the CO2 sensors as well as an issue with the Exhaust Heat Exchanger Bypass Valve A. Which after my bumper to bumper warranty expired now needs replaced even though the same issues have been throwing a CEL for months

Filed Nov 20, 2022 · Transmission · OK

I heard a very loud screeching noise around 4K miles and took it to the dealership, they said my axle nut on the driver side of the truck was sheared off. They said it was covered under warranty and repaired the issue. 8k miles after repair it is doing the exact same thing. No check engine lights for this issue ever appeared on the dash. Ford spend about 3 weeks or longer fixing this the first time. They promised when I purchased the truck if there where any issues I would get a loaner vehicle, nothing available to loan on the first time. Now that it’s happened again I called to scheduled a time to repair and they say I can’t even get seen until January 20th. So this truck has costed me a lot of out of pocket money for rentals.