2021 FORD F-150 Complaints

"Trailer disconnected" randomly pops up accompanied by a chime. Sometimes once a day, some times multiple times, time after time. Some times skipping a day. This is with NO trailer connected. Brought to the dealer with a code u0143 saying it is a network code and they cleared it and test drive it. But still happening. Had this truck not even 2 weeks and im not very happy to say the least. Never towed with it.

No Brake Controller on 2021 F150 with Class 4 trailer hitch as ordered and equipped from Ford as a new vehicle. I purchased and order a new 2021 Ford F150; truck was ordered with and equipped with a Class 4 trailer hitch; from my research, during early 2021 F150 production dates, Ford had no stock of trailer hitch brake controllers and placed a cheap, small coin holder where the brake controller was to be located; the wiring and connector for the brake controller is located in the dash, just behind this coin holder and is not connected to anything. The issue is that I have no trailer brakes whatsoever; when a trailer is attached to the vehicle hitch and the 7 pin trailer connector is connected to the 7 pin receptacle on the truck and when pulling that trailer and attempting to stop without a brake controller, the trailer will shove the truck forward; also, in a quick stop condition, the truck and trailer will begin to “Jack Knife”, thus causing a very unsafe and potentially fatal condition. When approaching the dealer from where I purchased my 2021 F150, I was informed that they were aware that those trucks that were assembled early in the production year were assembled without a brake controller; however, Ford is not retrofitting these vehicles with the missing brake controller but that I could, for a little more than $500, have a Ford controller installed in my truck by the dealer (the controller that should have been in place at the time the truck was assembled at the factory). Footnote: I am able to purchase a Ford brake controller from the Ford dealer and install it myself, except that unless the Ford dealer re-flashes the computer on the truck, the Ford controller that I installed still will not function, thus the $500 charged to install and re-flash a functional brake controller on a new 2021 Ford F150.

1. The passenger and drivers side modules were replaced by the dealership but the issues still persist and are available for inspection upon request. 2. Safety could be at risk. Reverse Brake Assist error issue could potentially cause a small child or person to be in danger if sensors are not working or cause an accident. 3. It has been reproduced and verified by the dealer. The dealer is Sill-Terhar Motors in Broomfield, CO. 4. The passenger and drivers side rear modules were replaced by the dealership, but the issues still persist. 5. The system failure messages did appear at the time of failure. They started appearing approximately a week after we purchased the truck. First warning is logged in the FordPass app on June 13, 2021 I get three warnings pretty consistently when the system fails. So far the FordPass app has over100 error messages regarding my issue. The warning messages all show up at the same time. They are usually: 1. Blind Spot System Fault 2. Cross Traffic System Fault 3. Reverse Brake Assist Not Available See Manual (even though it IS turned on) 4. Hill Start Assist Error occurs as well 5. Sometimes when I am in reverse and these go off and I then brake with the foot pedal, the electronic emergency brake engaged without any manual intervention. First 3 errors have happened while reversing AND while driving in normal city street and highway speeds. Taking into the dealer to have it looked at again on Nov. 4, 2021. Issues started 06/13/2021 and continue to present (as of this writing 10/25/2021).

Driving down a steep mountain road when a passing vehicle tripped the pre collision alarm while vehicle was being braked. The ABS, Traction Control, Brake, and just about all other visual alarms went off and the vehicle lost the brakes. the emergency brake would come on and lock up the rear tires then release rendering the vehicle unable to stop going down the steep road. Vehicle came close to crashing into other vehicles multiple times while trying to come to a stop. Vehicle was brought to a Ford dealership where the issue was verified. Dealer noted no recalls or TSB's on this vehicle. Dealer cleared the faults and test drove the vehicle and said the issue is now gone. Vehicle was in the process of being driven home when another vehicle in front slowed and tripped the pre collision sensor again and again all alarms came on and the brakes were lost. The vehicle in front was almost collided with. Contacted Ford customer service to report the issue. Ford cs said to tow the vehicle to an authorized ford dealership and call back to open a case file. Vehicle is currently at a Ford dealership awaiting service.

when connecting my truck to a know working trailer the truck would not enable the trailer brakes. tried different vehicle and the brakes work fine.

The contact owns a 2021 Ford F-150. The contact stated while driving 40 MPH, the vehicle shuddered and jerked forward. There were no warning lights illuminated. The contact continued driving to his residence. The failure recurred several times. The contact took the vehicle to a local dealer to be diagnosed. The contact was informed that there was a communication error between the gear shifter and the transmission causing the transmission to not know what gear the vehicle was in. The dealer informed the contact that there was no fix for the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 200.

I make a panic stop with my 5,000 lb boat, ABS light came on break light came on flashing warning light said to inspect brakes. Moved truck and found I had only partial breaking, carefully drove home with partial breaking.. At home all lights went out and brakes worked fine. Took to dealer they said a sensor went bad and they ordered part will be here in a few days. Truck only has 7500 miles on it, replacing a sensor does not fix the problem of a sensor that can at any time go bad again. This is a major design flaw similar to the original 121 brakes on trucks. This is going to get someone killed . There is no reason to install a sensor that can disable any part of the breaking system.

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

I was standing next to my vehicle, which was parked and had not been driven for 2 days, and the rear windshield exploded.

On multiple occasions my ABS system doesn’t work (no collision assist fault and ABS fault comes on). Brakes don’t work without great force when this happens. Ford service saw the errors in history but said couldn’t fix / find current issue. This is intermittent so active fault lights and issue come and go. Dangerous condition that Ford isn’t addressing!