Kepts getting hills stop brake malfunctioning anti collusion failures ant lock brake failure

- Truth Or Consequences , NM, USA

We were on vacation in Miami, Florida in February 2022 driving in stop and go traffic when our 2021 Ford Bronco with 2.7L Ecoboost engine suddenly shut down. The entire electrical system shut down and the emergency brake was applied. We were unable to start the vehicle with the ignition button or key fob. Traffic was backing up behind us and we couldn-€™t put our hazards on to let them know we were having vehicle trouble. A pedestrian tried assisting us with pushing the vehicle but due to the parking brake being applied it wouldn-€™t move. As a last ditch effort I decided to try to start the vehicle through the Ford Pass app. Thankfully, that worked and the vehicle started. We called a dealership in Miami to see if they could look at the vehicle before we traveled on to Key West. They were unable to get us in so we traveled to Key West. The Ford dealership in Key West was gracious enough to look over the vehicle and errors we received on the Ford Pass app. They did not find anything that would have caused the issue. We were just thankful we were on a side road in stop and go traffic when this happened rather than driving on the highway at 70 mph!

- Allendale , MI, USA

I was pulling into a residential driveway and as soon as the front tires entered the driveway the pre-collision alert warning went off and when I applied the brakes they did nothing. I proceeded to roll 25+ feet and crashed into the back of a parked car in the driveway. There were people standing just to the right of the parked car I hit. The Ford dealer has had the vehicle for over 4 weeks now and all they've said is certain modules aren't communicating properly.

- Albuquerque, NM, USA

-I bought the Ford Bronco to Flat-tow behind my Motorhome. (All 4 wheels on the ground) -Per Ford this is permitted, they outline a procedure in the owner's manual on how this must be performed. -At least 48 states require a supplemental braking system on towed vehicle. -The Bronco has an Electronic Break Booster (EBB) -When the Bronco is placed in the Flat - tow mode, the last step is to turn the key off. -Ford has set a timer (30 to 45 minutes) to shut down power to the EBB, when the key is turned off. -After timer expires, the brakes have no boost. This causes any after-market braking system installed on the Bronco to be useless. -In these circumstances, The Bronco is providing no help to the motorhome for braking, causing longer braking distances. Also, If the Bronco were to become detached from the motorhome, the emergency braking system that should come on and stop the vehicle, would not work. Could cause injury or death by having a runaway. -Ford has been unresponsive in attempts to remedy the situation.

- Grants Pass, OR, USA

Flat Towing 2021 Ford Bronco with 2.7 V6 engine. After connecting my Bronco to the motorhome and putting it in the tow mode the following will occur. About 45 mins after turning the ignition off and closing the doors the EBB (Electronic Brake Boost) in the Bronco shuts down leaving the Bronco without any brake boost and leaves the supplemental brake system ineffective. When first connecting the Bronco to the motorhome the brake boost is active and the supplemental brake system must be set to match, or it will lock up the brakes on the Bronco when you stop. After the boost shuts down the supplemental brake system cannot apply enough force to the Bronco brakes to assist in stopping and all at once it takes a much greater distance to stop the motorhome than it did when the boost was working. This is extremely dangerous as a break-a-way tow vehicle would have no brakes and become a missile, or the additional weight with no assisted braking could cause a 40,000lb Class A RV to lose it's brakes down a steep grade.

- Sisters, OR, USA

When Flat Towing 2021 Ford Bronco with 2.7 V6 engine. After we connect our Bronco to the motorhome and putting it in Tow Mode we lose Electronic Brake Boost about 45 minutes after turning the ignition off and closing the doors. The EBB (Electronic Brake Boost) in the Bronco shuts down leaving the Bronco without any brake boost and leaves the supplemental brake system not working. When first connecting the Bronco to the motorhome the brake boost is active and the supplemental braking system must be set to match, or it will lock up the brakes on the Bronco when you stop. After the boost shuts down the supplemental brake system cannot apply enough force to the Bronco brakes to assist in stopping and all at once it takes a much greater distance to stop the motorhome than it did when the boost was working. This is dangerous and potentially life threatening.

- Marion, KS, USA

Flat Towing 2021 Ford Bronco with 2.7 V6 engine. After connecting my Bronco to the motorhome and putting it in the tow mode the following will occur. About 45 mins after turning the ignition off and closing the doors the EBB (Electronic Brake Boost) in the Bronco shuts down leaving the Bronco without any brake boost and leaves the supplemental brake system ineffective. When first connecting the Bronco to the motorhome the brake boost is active and the supplemental bakes system must be set to match, or it will lock up the brakes on the Bronco when you stop. After the boost shuts down the supplemental brake system cannot apply enough force to the Bronco brakes to assist in stopping and all at once it takes a much greater distance to stop the motorhome than it did when the boost was working. Also, if for some reason the Bronco becomes detached from the motorhome that is towing it, then the Bronco becomes a missile waiting to hit what ever is in it's path as the emergency braking from the supplemental braking from the Coach would not engage and stop the Bronco.

- Austin, TX, USA

Flat Towing my 2021 Ford Bronco with 2.7 V6 engine. After connecting my Bronco to the motorhome and putting it in the tow mode the following will occur. About 45 mins after turning the ignition off and closing the doors the EBB (Electronic Brake Boost) in the Bronco shuts down leaving the Bronco without any brake boost and leaves the supplemental brake system ineffective. When first connecting the Bronco to the motorhome the brake boost is active and the supplemental bakes system must be set to match, or it will lock up the brakes on the Bronco when you stop. After the boost shuts down the supplemental brake system cannot apply enough force to the Bronco brakes to assist in stopping and all at once it takes a much greater distance to stop the motorhome than it did when the boost was working.

- Skiatook, OK, USA

The 21 Bronco is sold and marketed as being set up and safe to flat tow recreationally. The problem is with the 2.7l engine which has an Electric Brake Booster. After 45 mins the Battery Management system turns the Electric Brake Booster off. Thus the brakes are not powered and the required by law, brake system (3rd party) can not apply enough pressure. This is a SERIOUS design flaw. I have reached out to FORD, they denied that there is a global problem and asked me to contact my dealer. The dealer search TSB's and other systems and saw no notations and thus did not want to see the vehicle. I have asked to speak to a Bronco engineer and was denied. This is a known and confirmed issue to be found on any RV or Bronco Forum using search. PLEASE help me put pressure on FORD to fix this SERIOUS safety issue. This an on going issue thus date information below is irrelevant. 3rd party braking system is an Airforce One by Demco and was professionally installed, it functions as it should.

- Scottsdale, AZ, USA