2021 Ford F-150 Hybrid

Rear differential, passenger side axle bolt broke off. I removed the right rear wheel after hearing a metallic noise while braking to inspect, as soon as I removed the wheel a broken head bolt and washer fell out and you can clearly see the other piece of the bolt is still in the axle shaft. I am not sure if this bolt breaking off could cause loss of wheel or axle. But now my brakes are making noise, I believe as a symptom directly related to this issue. I looked up 2021+ F150 forums and customers with this max trailer tow axles are experiencing the same thing. I took the vehicle to the dealer today to get this inspected and am awaiting an update. The only indicators of a problem was loud metallic noise while braking, and a slight ringing sound while driving without braking. It was all sounding in the rear of the vehicle.

When in regular use of this hybrid Powerboost F150, the truck lurches forward on electric motor power as if you just got rear-ended. This happens every single time you have to come to a stop for more than 5 seconds. The only way to avoid this issue is to drive in"tow/haul" mode which keeps the truck's engine running. This defeats the purpose of a hybrid truck, and you have to remember to switch the running mode from normal to the haul/tow mode. This lurching had to be causing extra wear and tear on the drive train parts. Apparently the problem is a faulty "Transmission Fluid Auxiliary Pump". Many of us on the Ford F150 forums are waiting on our dealers for this back ordered pump. Apparently Ford continues to build vehicles while falling to provide a replacement pump? I am concerned as to the design of this pump as well. My"new" truck only has 7800 miles on it, a little over one year old, and the pump is defective. Is this going to be a reocurring problem? This is a safety issue and should be addressed ASAP. Thank you for your attention to this matter..

13800 miles, broken axle/wheel bearing retaining bolt. Screeching noise. Bad wheel bearing. Dealer will not replace wheel bearing because they do not correlate the broken bolt to a bad wheel bearing. Leaving me with a bad wheel bearing that I consider prematurely worn out and is making a clicking sound. Dealer says they cannot replicate the noise so will not investigate further

In May 2022, the passenger side right rear axle bolt sheared off creating a squealing/grinding noise from that wheel. The only thing holding the wheel onto the axle were the brake caliper bolts. The repair involved a new axle. In early Sept 2022, the driver side rear axle bolt sheared off with the same results. The vehicle is now in the shop waiting for the parts to arrive. Dealer advised that this is a serious safety issue and requested that the vehicle be towed to the service center.

The driver side rear axle retaining bolt sheared off rendering the truck not drivable. The truck is at the Ford dealership I purchased it from waiting for a replacement part. This is such a common problem that the axle shaft is on back order, so I am without my truck until the parts are available. Upon researching online I have found this to be a common problem that Ford is very much aware of but have not taken action to correct.