2021 Ford F-150 Hybrid Other / unspecified Problems

The rear wheels are locking up at acceleration after stopping.

NHTSA ID

11601814

Incident

Jul 13, 2024

The contact owns a 2021 Ford F-150. The contact stated while driving approximately 65-70 MPH, the contact was flagged down by a nearby driver and advised to pull the vehicle over to the shoulder of the road. The contact stated that the vehicle was driven to the shoulder of the road. The contact exited the vehicle and proceeded to inspect the vehicle. The contact noticed that the rear driver's side rim cap had detached. The contact stated that the center axle bolt was still attached to the rim cap. The vehicle was towed to the dealer where it was diagnosed with a failed rear axle half shaft and hub and the rear axle half shaft and hub needed to be replaced. The vehicle was repaired. The contact stated that the driver's side rear axle bolt had previously been replaced and was under an unknown recall. In addition, the contact stated that the failure had occurred on five occasions within two years and that the vehicle was unsafe to be driven. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 20,000.

NHTSA ID

11589254

Incident

May 17, 2022

Mileage

20,000 mi

On November 29, 2023 I took my 2021 F150 to Larry Miller Ford for servicing and repairs related to Recalls 22S71 and 23S35. When the tech was rotating the wheels he discovered that the axle shaft bolts were sheered off on both the left and right rear wheels. The service manager called to tell me that this was a serious safety issue and that only the brake rotors were preventing the wheels from falling off the truck. The service manager told me there was a "Customer Satisfaction Program 22B34" issued by Ford, but no Ford Recall relating to the problem. Larry Miller Ford has replaced both axles and axle bolts. I am waiting to find out if there is damage to the rotors, calipers or brake pads, a concern since the sheered off bolts were rattling around within that area since breaking off apparently between service visits. I strongly believe Ford should be required to issue a recall on this problem. I never received a notification on CSP 22B34. Had it not been for my tire rotation, the wheels could have fallen off at highway speed.

NHTSA ID

11557734

Incident

Nov 29, 2023

Radio started blasting a boom/ static sound from the rear speakers and subwoofer; extremely loud and has occurred multiple times. It had previously made a similiar sound occasionally at start up which when under warranty was always diagnosed as unable to duplicate but is now occuring while driving and I am out of warranty. Very startling and distracting when it occurs. Has occured multiple times and lasts upto an hour before I gave up an parked my vehicle. Have a special needs minimally verbal disabled child who is very sensitive to noise (rear speakers are always turned off via fade to front) who was very impacted by this loud explosion of chaos/ noise when it occured with him in the car. Ford response: since out of warranty can pay for diagnostic and repairs. Don't expect NHTSA to care as they weren't concerned with my complaint regarding complete loss of brakes (incomplete or bad programming) with this truck but maybe this will let others know they arent alone if they have this issue.

NHTSA ID

11557139

Incident

Nov 20, 2023

My truck has the Maximun payload axle upgrade. The axle bolts on the end of the shaft have broken. I first notice squealing sound of metal from rear of truck. I searched on line for the symptom and found the problem. I then removed passenger rear wheel to verify broken bolt. I took my truck for service to Morries Grand Ledge Ford in Michigan. They verified the problem, told me it was not safe to drive and have ordered parts. They also informed me that the defective axle is not covered by recall on my vehicle. The service representative did confirm that there are recalls for the same axle but not my vehicle.

NHTSA ID

11547293

Incident

Sep 29, 2023

The Axle bolts on both sides of the truck sheared off. The passenger rear axle bolt sheared at 15,000 miles into having the new truck. The driver side rear axle bolt sheared at 21,000 miles. This is a large safety concern and is not unique to just me. The first axle bolt sheared and was repaired once I figured out the problem at a Ford dealer. The second bolt is currently being repaired in the same dealer's service department. There was no warning or detection of this problem other than a rattling sound during acceleration and a wizzing sound during braking. I do not have either of the sheared axle bolts. They were kept by the dealer.

NHTSA ID

11545102

Incident

Jul 1, 2023

The driver's side rear axle bolt sheared off over the course of normal driving. Ford is aware of this problem, advises to not use/drive the vehicle, yet no recall has been issued. Without a recall, getting this issue fixed will take weeks/months and Ford should pay for a rental vehicle since this is clearly a manufacturing defect.

NHTSA ID

11542679

Incident

Sep 1, 2023

Rear axle bolt broke off

NHTSA ID

11539993

Incident

Aug 20, 2023

Bolt that holds the axle on to the vehicle is broken in half and therefore the axle can unexpectedly fall off the vehicle. It is the rear driver side axle. This was noticed when I recently replaced my tires and the broken screw was loose in the wheel.

NHTSA ID

11532707

Incident

Jul 13, 2023

Our truck is equipped with the B&O Unleashed sound system. One afternoon, upon starting the truck after completing a brief errand, an extremely loud POP sound occured, followed by terrible static and crackling from every speaker. The noises continued for several minutes, even after noticing the audio system was off and then also turning the truck itself off. The terrible noises simply continued. Although the sound eventually stopped, the truck now regularly makes two or three quieter popping sounds as the driver first approaches the truck; nearly every time. The sounds seem to come from the driver door's speaker. There is also faint crackling on occasion from the headrest speakers.

NHTSA ID

11531204

Incident

Jun 1, 2022

Planned one week, 1,400 miles roadtrip along pacific coast during memorial day weekend. Before starting our trip I went to rotate the tires and upon removing the rear passenger side wheel a bolt and metal gasket fell out. Issue: Center bolt that locks the brake assembly to the rear axle shaft was sheared off with remaining half stuck in the axle shaft. How was your safety or the safety of others put at risk?: The truck would have been loaded for our week long roadtrip up North. On the way back we were going to tow our 5000lbs trailer. This bolt would have impacted the braking ability, cause damage to the rear axle assembly possibly resulting in an accident. If I didn't rotate the tires before leaving who knows what could have happened especially if I was towing. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. Vehicle is currently at a Ford dealer for axle shaft replacement. The service manager had a broken bolt from another vehicle and asked me is this what happened? There are hundreds of F150 owners complaining about the same thing on various forums. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Not yet. I'm glad it didn't get to that point. But from all users that had this problem and got replacement axle for what seems like defective bolts I would hope Ford would voluntarily inspect and issue a recall. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No fault lights but I did hear faint grinding sound when the windows are rolled down. I guess the bolt was spinning around in the wheel.

NHTSA ID

11527447

Incident

Jun 3, 2023

The service bulletin needs to be a recall. The Program number is 22B34 where on all max tow packages the rear axle bolt breaks off. It is very common and need to be addressed and not just a satisfaction program. It happened to my truck at 27,000 miles.

NHTSA ID

11523221

Incident

May 21, 2023

Deafening pulsing noise coming from all speakers , volume button did not turn it off. Shut truck and locked it and did not stop the noise. Unplugged battery and did not stop noise. After about 15 minutes it stopped. Got into truck and there was an electrical burning smell. I have recorded the noise on video. Big safety concern, if the noise happened while I was moving I might have crashed. My ears were ringing for awhile after the incident.

NHTSA ID

11518507

Incident

Apr 23, 2023

Noise coming from driver's side wheel. Removed the wheel and the axle bolt and washer fell out. The bolt had broken completely off. https://www.f150forum.com/f129/2021-powerboost-rear-rotor-axle-bolt-sheared-515460/index107/

NHTSA ID

11518416

Incident

Apr 21, 2023

The sound system blasted a loud, screeching sound, and I couldn't turn it down. It startled me so much that I ran a red light. It seems many similar models have this issue: https://www.f150gen14.com/forum/threads/dangerous-b-o-sound-system-issue.9254/.

NHTSA ID

11514527

Incident

Mar 29, 2023

On March 24, 2023, I got inside my 2021 Ford F-150 Power Boost King Ranch Truck, Turned it on. Heard a loud popping sound. Began to drive away. Then all of a sudden there was a loud static sound. The sound was so loud like someone turned the volume to MAX limit and I began trying to turn it off. The radio was not responsive. I started to panic because I had all these vehicles around me and could not think correctly. It was affecting my decision making and all I could think of is turning off my phone, pressing the Power On + Next Track button to hard reset radio , etc. Nothing worked. Loud static sound would stop. Radio wouldnt turn off. Next thing you know Im on the expressway trying to get off because obviously nothing worked. After around 20 minutes, I finally pulled over. Turned off my truck. Then turned it back on thinking it would have stopped. NOPE, sound was still on. Had to get to my destination and when I did. I lost some of my hearing. It was that BAD!!

NHTSA ID

11514382

Incident

Mar 24, 2023

Ford F-150 CSP 22B34 Rear R/H axle hub bolt sheared off.

NHTSA ID

11512335

Incident

Mar 5, 2023

rear passenger side axle bolt sheered off.

NHTSA ID

11502800

Incident

Nov 9, 2022

Passenger side rear axle bolt failure. The bolt sheared off completely and was found rattling inside the center cap. Dealer states vehicle cannot be driven. Ford will provide rental until repaired but can’t provide estimated repair date.

NHTSA ID

11501556

Incident

Jan 12, 2023

Bolt that holds the rear passenger side axle in place has broken off. This was found during a tire rotation at the dealership.

NHTSA ID

11496757

Incident

Dec 8, 2022

BROKEN AXLE BOLT

NHTSA ID

11494637

Incident

Nov 21, 2022

Passenger side, rear wheel axle blot sheered off, been loose for ??? Was told not to drive the vehicle, safety issue. Seems to be a common problem with the Mac towing package.

NHTSA ID

11493291

Incident

Nov 12, 2022

Heard squealing in brakes and rattling in passenger rear area. Took to Ford service and they found loose bolt head and washer that was sheared. Recommended not to drive vehicle but could not confirm that it is a warranty issue at this time. Less than 24k miles on vehicle.

NHTSA ID

11493108

Incident

Nov 9, 2022

My radio speakers turned to 100% volume and the subwoofer made an EXTREMELY loud static noise. It could not be turned off. My ears rang and thankfully I wasn’t driving fast enough, as I was about to pull into my driveway. Based on the advice of a thread I read online, the best way to fix the issue was to shut the truck off and let the noise eventually turn off… which took ten minutes. Since I could not reproduce the issue, and based on everything I’ve read about this issue, going to the dealer would not be a benefit of my time as they require the issue to be happening to diagnose the issue. I cannot replicate it again, but if this happens while I’m driving much faster, I fear it will cause me to wreck… or lose my hearing. The noise was quite literally deafening. Please read just one of many threads on this issue here: https://www.f150gen14.com/forum/threads/dangerous-b-o-sound-system-issue.9254/

NHTSA ID

11488482

Incident

Aug 25, 2022

The rear axle bolts sheared off for unknown reasons. The symptom was a metallic rattling noise from the back of the vehicle - the noise was pieces of the axle bolts bouncing around inside the wheel center cap. The bolt in questions holds the rear axles in place. Vehicle has been at dealership for 2 weeks as they said it was a common problem that is a safety issue. Said it was possible for one or both of the rear wheels to fall off if I had continued driving it. Obviously losing one or two wheels is a huge safety concern. My dealer said he has seen this exact issue 4-5 times on similar trucks. Vehicle is less than 9 months old and has less than 13,000 miles on it. Vehicle is being repaired under warranty but using the same parts.

NHTSA ID

11486774

Incident

Sep 12, 2022