Table 1 shows one common seat belt related problems of the 2021 Ford F-150.
| Problem Category | Number of Problems |
|---|---|
| Seat Belt problems |
1. Electrical system failure: while traveling on highway, alternator failed suddenly within 2 minutes of “service soon” and “check electrical system” warnings. Caused complete loss of motive power, electronic parking brake locked up while driving, loss of power steering, all gauges failed, transmission shifted into park while in motion. Battery was damaged (“fried”). Engine continued running for several minutes after stop without ability to shut off ignition. Incident documented by ohio state highway patrol. 2. Seat belt issue: driver-side seat belt interlock sticks in unlocked position, creating risk of failure to lock during a crash. 3. Electronic parking brake: intermittently engages while vehicle is moving downhill to a stop (mostly at or below 5 mph). Parking brake light flashes three times then turns solid while in motion. Ford TSB indicates vehicle not eligible for related recall. 4. Infotainment system: intermittently freezes, requiring forced reboot. Preceded by audio glitches, laggy dash computerized systems. 5. Transmission: severe clunk and physical jolt when decelerating from ~30 mph to 8 mph. Also occurs during acceleration, particularly upshifts from 2nd to 3rd and 3rd to 4th gears, more pronounced when turning. 6. 4wd system: intermittently fails to disengage from 4wd hi to 2wd hi. “failure to shift” message appears several minutes after command to return to 2wd hi. 7. Front differential/axle: previously, faulty front differential housing fractured due to system malfunction, causing intermittent loss of front driveline engagement in 4wd lo (250-500ms delay then re-engagement under throttle). Ford replaced front differential and axle under warranty after vehicle out of service for 2. 5 months. Abbreviations: 4wd hi = 4-wheel drive high range; 2wd hi = 2-wheel drive high range; TSB = technical service bulletin.
The contact owns a 2021 Ford F-150. The contact stated that while driving approximately 45 mph, the contact was cut off by another vehicle that had pulled out in front of the vehicle. The contact depressed the brake pedal with force to keep from crashing into the vehicle. The contact stated that the seat belt pretensioner held firmly in place; however, the passenger's seat belt failed to restrain the passenger in the seat. The contact stated that the passenger almost crashed into the front passenger’s side dashboard. The vehicle was taken to a local dealer, where it was diagnosed, and determined that the passenger’s side seat belt retractor and pretensioner needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to NHTSA campaign number: 21v653000 (seat belts); however, the VIN was not included in the recall. The manufacturer was not informed of the failure. The failure mileage was approximately 46,000.
The contact owns a 2021 Ford F-150. The contact received notifications of NHTSA campaign numbers: 21v653000 (seat belts), 23v509000 (parking brake), 22v142000 (visibility) and 23v163000 (visibility). The contact stated that while driving 60 mph, the parking brake independently activated. The contact pulled over to the side of the road. The contact turned off the vehicle and, after waiting for a short while, the vehicle was restarted. The message "service parking brake" was displayed. The contact stated that on a separate occasion, while turning off the vehicle, the parking brake fail to function as intended. The contact stated that recently the seat belt failed to retract and remained loose. The vehicle was taken to the dealer; however, the dealer refused to repair the vehicle under the seat belts and parking brake recalls. The contact stated that the recall repairs for visibility were performed. The manufacturer was not made aware of the failure. The failure mileage was approximately 119,000. Parts distribution disconnect.
After driving the vehicle for 14,000 miles I was traveling out of state when my wife and I discovered that the passenger seat belt was not anchored to the floor. When we arrived home there was a recall notification in our mail. I immediately went to serramonte Ford in colma, CA and scheduled the required inspection for November 1. They assured me that any necessary repair would be done at that time. Later that day they called and told me that I needed a new part but they were required to order it from a special source because it was a recall item. (what)! they called two weeks later and advised that the part arrived and I made an appointment for November 16 and dropped the vehicle off. Later that day they called and told me that they needed a gasket so the repair couldn’t be done. I picked up the vehicle and they told me they would call me to reschedule the repair. It is now January 2022 and I have been driving this vehicle for eleven months without a seatbelt. They can’t tell me when to expect the repair.
I was pulling into my spot at work and the power steering assist light and pre collision assist lights cam on along with advance trac. At this point I had no power steering. Luckily I was basically stopped. I cycled the key on and off twice and it finally went back to normal. Then later that same day I started the truck up and proceeded to leave from work and the seatbelt restraint light, abs system, and tpms stopped working and I was notified of the faults via Ford pass. The lights then went away right after. I have a service apt 9/29 at the dealer to see what is going on but I’d like to get this documented in case it becomes a recurring issue. Thanks.
Unknown our F-150 was hit by a driver from a side street. The whole passenger side was damaged, front fender replaced, front door replace, post repaired, back door replaced, back panel of truck replaced, and back wheel. The long step was pushed up and under vehicle. It was replaced as well. The side airbag did not engage. I was thrown around in the passenger seat. I experienced a contusion on my right knee and three days later diagnosed with side impact whiplash. The truck was declared not safe to drive while we were trying to get estimates for repairs. They were concerned that the airbag didn’t go off and the door was not closing correctly even after they tried to tweak it. Our truck was towed off by the insurance company to a secured site until we could get it towed for repairs. We were never told why the airbag didn’t go off.
The seat belt from my 2021 F-150 cause shoulder pain. Since the vehicle in the dealer for a month I have to drive a rental and the shoulder pain went away.