The contact owns a 2021 Ford F-150. The contact stated while driving at various speeds, the ABS, auto collision, and traction control warning lights illuminated on the instrument panel while depressing the brake pedal. The vehicle was taken to a dealer where the vehicle was diagnosed with a defective electronic brake booster. The vehicle was repaired by the dealer. Upon investigation, the contact discovered NHTSA Campaign Number: 21V533000 (Service Brakes, Hydraulic) which the contact linked to the failure. The manufacturer was notified of the failure and the contact was informed that the vehicle was not included in the recall. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 43,000.

- Oxford, MS, USA

The contact owns a 2021 Ford F-150. The contact stated that the brake power booster was emitting a hissing sound when the brake pedal was being depressed. The contact used an excessive amount of pressure to depress the brake pedal. The ABS warning light was illuminated but deactivated independently. The vehicle was taken to the dealer, but the cause of the failure was not determined. The dealer confirmed that the failure was related to NHTSA Campaign Number: 21V533000 (Service Brakes, Hydraulic) however, the VIN was not included. The vehicle had not been repaired. The manufacturer was made aware of the failure, and it was confirmed that the VIN was not included in the recall. The contact was referred to the NHTSA Hotline to file a complaint. The failure mileage was 28,000.

- Cache, OK, USA

The contact owns a 2021 Ford F-150. The contact stated that while driving at an undisclosed speed, the Advancetrac warning light illuminated. The contact stated that the screen was blinking. The vehicle was taken to the local dealer where it was diagnosed that the electronic brake booster needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure and provided a case number. The failure mileage was approximately 49,276.

- Fremont, NH, USA

The contact owns a 2021 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle shuddered. The contact related the failure to NHTSA Campaign Number: 21V533000 (Service Brakes, Hydraulic). The vehicle was taken to the dealer where it was repaired, however, the VIN was not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 45,000.

- Fremont, NH, USA

The contact-??s wife owns a 2021 Ford F-150. The contact stated that on numerous occasions while shifted into drive, reverse, or decelerating, there was a squeaking sound for approximately five minutes. No warning light was illuminated. The dealer was notified of the failure and the contact was informed that the possible cause was due to weather. The vehicle was not diagnosed or repaired. The contact referenced NHTSA Campaign Number: 21V533000 (Service Brakes, Hydraulic). The manufacturer was not notified of the failure. The failure mileage was unavailable.

- Lauderhill, FL, USA

The contact owns a 2021 Ford F-150. The contact stated that while driving at an unknown speed and depressing the brake pedal, the traction control and several unknown warning lights were illuminated. The failure reoccurred while driving at various speeds and after depressing the brake pedal. The vehicle was then taken to a local dealer where it was diagnosed with needing to replace the electric brake booster. The contact referenced NHTSA Campaign Number: 21V533000 (Service Brakes, Hydraulic) as a possible solution however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that VIN was not included in the recall. The contact was advised to file complaint with the NHTSA Hotline. The approximate failure mileage was 35,000.

- Wentzville, MO, USA

The contact owns a 2021 Ford F-150. The contact stated that the brakes failed on two separate occasions. The first failure occurred while the contact was driving at an undisclosed speed on the highway. Several unknown warning lights were flashing however, the warning lights self-adjusted. The second time the failure recurred, the vehicle was parked. While attempting to start-up the vehicle, several unknown warning lights illuminated. After the failure, while driving 5 mph, the brake pedal was depressed and went to the floorboard. The ABS activated and the vehicle came to an abrupt stop. The vehicle was taken to the dealer and diagnosed that the trailer brake module had failed. The vehicle was repaired but remained at the dealer. The manufacturer was made aware of the failure. The failure mileage was 2,900.

- Cotati, CA, USA