Eight problems related to brake light on have been reported for the 2011 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford F-150 based on all problems reported for the 2011 F-150.
Total loss of brakes, almost got into an accident. Brake light warking suddenly came on, pulled over to check, empty brake fliud, fillled up the brake fluid, in 10 minutes all the brake fluid is gone. No signs of leak on the floor. Towing it back to the hpuse.
While driving at approx 65-70 mph on the entrance ramp to route 114 east bound from route 287 south bound (rhome, TX. ) the brake light warning announced in the truck. I then went to test the brakes as they went all the way to the floor, I was slowing down but not much. I then had to use the manual transmission and downshift. Finally coming to a complete stop approx 3/4 to a mile down the road. Thankful no traffic at this time 615 pm (approx). The service report is attached the rear seal in the master cylinder failed, cause the booster to drawn in air and fail as well. As a not when the vehicle was stop I opened the hood and checked the brake reservoir was empty and you could hear air being sucked in. I had my 13 yr old daughter in the truck with me, as we were returning from her horse riding lessons. I don't image this "just fails" also as a note the vehicle was checked to include the brakes 04/01/2017 at that time the brake system was flushed - and another service (spark plugs) 04/10/2017 - in the looked at brake fluids and pads and rotors. No issues found, I also had checked my fluids on the weekend of may 6th, again no issues.
The contact owns a 2011 Ford F-150. While driving 75 mph, the brake warning light illuminated and the vehicle required a longer time to stop when the brake pedal was depressed. The failure occurred constantly. The vehicle was taken to the dealer where it was diagnosed that the master cylinder and brake booster failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 66,395.
The brakes failed when backing up from a parking space at a local elementary school. Truck continued to roll backwards while stepping on the foot brake. Had been an intermittent issue with no ability to push down the pedal when in reverse. Later that day the brake warning lights came on indicating a braking issue.
The brakes failed when backing up from a parking space at a local elementary school. Truck continued to roll backwards while stepping on the brakes. Had been an intermittent issue with no ability to push down on the brake pedal when car is started up and put in reverse. Later that day brake warning lights came on.
I was driving the truck home from work (not experiencing any issues). I began to cross the ship channel bridge in houston, TX when my low brake fluid light came on. After I crested the top of the bridge I tested the brakes to make sure they were working properly (and they were). I decided to continue driving to the closest auto parts store to see why the light came on an to top off the fluid. When I went to exit the freeway (about 3 miles from when the light came on) I pressed the brake pedal and it went all the way to the firewall (I had lost all breaking power). I immediately pressed the emergency brake and downshifted the transmission to help me get the truck slowed down. I was able to make it to the shoulder without incident. I then had the truck towed to the dealer where they determined then cause of the brake failure was due to a rupture of the seal in the master cylinder. I had the brake booster and master cylinder replaced ($700) and they ensured me the problem was resolved.
Brakes were difficult to engage during emergency braking due to hard pedal. Braking seems more difficult than previous experience (like having no brake assist). After searching the internet for known problems, I verified a blown vacuum pump fuse. The dealer verified that the vacuum pump assembly was seized therefore blowing the fuse. I find it curious why a major brake component can fail while not setting a failure code or indicating a failure on the Ford display panel (check brake light, etc. ). How can the vacuum assist for the brakes totally fail on a 2011 vehicle and not tell the driver there is a problem? why did the vacuum pump fail (internal pump bearings lacked lubricant and seized due to atmospheric moisture) with just over 20000 miles on the truck? why won't Ford fess up that they sold their customers a defective $750. 00 pump? I guess Ford only knows!.
Crossing table rock dam on dry, flat, level pavement after letting off gas in anticipation of stopping at upcoming light rear tires locked and went into skid squealing brand new michelin tires with less than 500 miles on them. Nobody was directly behind me or would have caused wreck due to sudden deceleration with no brake lights since no brake applied. Tires squall like old vehicles with no abs when brakes locked up. An employee was riding with me at the time and it scared both of us. Had we not been out of town and dependent on truck getting us home we would have not driven it again. After returning home truck did it a second time a couple of weeks later driving in town down stadium blvd at about 35 mph. Rear tires lock, skid and squall. In addition earlier intermittent hard downshifts that feel like someone hits you from behind but not a full lock condition as these two recent incidents. Also intermittent stalling when pulling away from stop light, stop sign, out of parking lot, or out of driveway - especially after idling. Stalls, hesitates, bucks, vibrates, giving it gas does not result in vehicle responding. Usually on "easy" acceleration meaning when just easing off from stop. Intermittent transmission sticking in 1st gear and won't shift out. Finally vehicle sometimes "surges" after putting in gear on cold start or when letting off gas and coasting - it actually picks up speed and lunges forward for just a second. There is something wrong with all the sensors and the computer is causing the engine / transmission / abs brakes to behave in strange and unpredictable ways. My father, wife, and employee have all witnessed one or more of these issues while riding with me but intermittent so unable to replicate. Ford case opened but no resolution. Tell me drive it until it breaks so they can find problem but unsafe to do so.