Despite being in the dealers repair shop for warranty work for 33 days including a factory recall on the adaptive cruise control, the unit continues to malfunction. The latest event occurred on August 24, 2016 while traveling at 77mph with the adaptive cruise control engaged. Without warning or cause the collision control system fully deployed to include hard braking, windshield warning lights, instrument cluster warning, and audible warning. Result is that the vehicle dramatically slows very quickly creating a potentially major problem if there were vehicles following closely behind. This in addition to the sudden nature of the warning and vehicle "take over" by the system could cause momentary driver panic! dealer has stated a willingness to work on the vehicle again, but says they can only re-do what they have already done multiple times.

- Bossier City, LA, USA

While using adaptive cruise control mode at highway speeds both day and night my vehicles forward collision avoidance system has mistakenly applied the brakes suddenly reducing the vehicle speed abruptly. Night time instance was going under a expressway overpass center lane no other vehicles in area. Day time in hov lane and moderate traffic flow but no one within ten car lengths. Only 1000 miles on vehicle. I have deactivated the adaptive cruise control in vehicle settings. Vehicle just outside of production date of recall. Two purchased new 7/28/2016. To be reported to dealer.

- Wading River, NY, USA

The advance track warning light and fuel assist start warning lit up then the engine speed decreased to 1000 rpms and no acceloration available this happened on ann state highway from 70 mph dropping down to 10 mph this took over 30 days to fix. Seemed to be missed diagnosed for weeks. Mechanics unable to find problem. Parts were shipped and delayed and lost. Wiring harnesses and PCM and finally throttle body seemed to correct the problem. Mixed up because computer told mechanics one thing but really another.

- New Glarus, WI, USA

The contact owns a 2015 Ford F-150. While driving approximately 40 mph, the vehicle suddenly experienced unintended acceleration and the accelerator pedal erroneously depressed to the floorboard. The cruise control was not operating at the time of the failure. When the brake pedal was depressed, the vehicle continued to accelerate. The vehicle was taken to the dealer where the failure could not duplicated. The manufacturer was not notified of the failure. The failure mileage was 72,000.

- Wyandotte, MI, USA

My girlfriend and I were driving down the highway on a sunny day at around 70 mph. I was using adaptive cruise control. There were other cars on the road, but none within distance to affect my speed/cruise control (they were all way ahead or behind). All of a sudden, for about a half second, my truck flashed the warning light and sound as if I was going to hit something, and it automatically pressed the brake for me. It was very scary and dangerous. Then it came out of the warning and we continued on our way (we were in a bit of shock). I of course turned off the adaptive cruise control so the vehicle was under my complete control. Thinking back, I'm wondering if the shadow from an overpass caused my truck to think there was a vehicle close and an impending crash. Either way, it was very unsafe, and I'm hoping it doesn't happen again to me, or anyone else.

- Olathe, KS, USA

Vehicle w/ less than 3,800 miles. Placed vehicle in drive and the rpms spiked and vehicle took off. Hard braked to gain control of vehicle the tires continued to spin on road surface. Forced the vehicle into park until the rmps dropped to normal range than placed into drive again, but with out incident.

- Wallace, SC, USA

While driving on the highway using the adaptive cruise control, the vehicle may falsely detects an obstacle in its path and may unexpectedly apply the brakes. This issue has been addressed by NHTSA campaign number: 15V-614, but my vehicle was not part of the recall. I believe my (and perhaps other peoples) vehicle should have been included in the campaign.

- Irving, TX, USA

The contact owns a 2015 Ford F-150. The contact stated that while driving at 70 mph, the vehicle abruptly decelerated. The wrench and limp mode warning lights illuminated while the failure occurred. The contact was able to coast on to the road shoulder and restarted the engine however; the vehicle did not regain acceleration. The vehicle was towed to the dealer whom performed a diagnostic that located a failure code at the throttle body. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 76,000.

- Mandeville, LA, USA

While using adaptive cruise control the car will inexplicably break when it sees shadows in the road. Usually happening while traveling under a bridge on highway. Car will drop speed from 70 mph to approximately 40 mph with sudden breaking?

- Massillon, OH, USA

While driving - complete shut down of vehicle - loss of steering and acceleration. System warning says advance trac warning and shows a picture of a wrench. Stopped the vehicle - restarted and continued to happen. Very dangerous as it happened while driving - had to coast to the side of the road.

- Ponte Vedra Beach, FL, USA

Jan. 13, 2016 while traveling South on route 17, in North Carolina towards raleigh, the sipped limit was 70 mph. I looked down and noticed I was moving at 80 mph, based on the dash speedometer. When I let off the gas pedal, the truck slowed down but the speedometer remained at 80 mph. I changed my digital setting from fuel economy to digital mph and noticed this mode seemed to be accurate, however the dash speedometer remained at 80 mph. My wife took a video of the problem with her phone. By the time we arrived in raleigh, nc, the dash mounted speedometer was close to 100 mph. We parked for several hours while attending a meeting with the senator. On the way home and heading back North on route 17, the speedometer started dropping back. By the time we got home, the speedometer was only off by approximately 5 mph compared to the digital speedometer. Parked the truck in the garage over night. When using the truck the following day, the speedometer seemed to matched up again. Dealer replaced the entire instrument cluster in order to correct the issue.

- Hertford, NC, USA

The contact owns a 2015 Ford F-150. While pulling into a handicapped parking spot, the vehicle accelerated and crashed into a concrete pole. The air bags did not deploy. The contact received back and leg injuries. The passenger also received back injuries. Medical attention was not required. A police report was filed. The contact drove the vehicle home and later to the body shop where it was diagnosed that the bumper needed to be replaced and the front end needed to be repaired. The vehicle was not repaired. The manufacturer was not made aware of the failure. The VIN was unknown. The approximate failure mileage was 3,100.

- Blairsville, GA, USA

When using the adaptive cruise control, and when passing large trucks, the F-150 suddenly brakes as if it were about to crash, yet there is nothing in front of the vehicle. This has occurred 6 times at full highway speeds when passing big trucks that are in in right lane. It is a little scary if someone is tailgating - the good part is that using the accelerator will stop the braking. I took it to dealer and they were clueless. I've only had truck 30 days.

- Cathedral City, CA, USA

I previously reported that my vehicle had repeated experienced improper activation of the adaptive cruise control (and sometime collision avoidance system) and sudden braking at highway speed when passing certain large trucks. Recently Ford notified me of their (saftey recall) field service action number: 15S29 and on 5 November 2015 I took my truck to my local Ford dealer where they performed the work for recall 15S29. I took my first interstate trip following the repair on 9 November, a total distance of 74 miles, during this trip the adaptive cruise control again activated my brakes one time unexpectedly while passing a large truck. The safety recall repair has not solved the problem with my truck.

- Jennings, LA, USA

The truck's adaptive cruise control system would brake for no apparent reason. I had the issued safety recall performed on the truck Nov 2, 2015. The dealership report said that the recall was performed and working properly. That evening the truck again started breaking for no reason. I had installed a dash cam the Saturday prior to the recall repair. I have video footage of what was going on in front of the truck that caused it to apply the breaks. I had the cruise control set at 51mph, the 2 distance spacing, and the truck slowed it self down to 39 mph then sped back up again. I know I cannot attach a video to this report, but I am have it available to email.

- Texarkana, TX, USA

When using the adaptive cruise control, and when passing large trucks, the F-150 suddenly and without warning brakes as if it were about to crash, yet there is nothing in front of the vehicle. This has occurred three times at full highway speeds when passing larger vehicles in an inside lane of interstate highways. This sudden and unexpected braking has almost caused three accidents and very nearly caused me to lose control of the vehicle.

- Plano, TX, USA

When passing a semi truck on the left (semi is to the right of me) using the adaptive cruise control function, the truck slammed on its brakes and said collision warning. Car behind me almost rear ended me. This happens intermittently like 6 times in 3 months and only happens when passing a large semi and the semi is to my right. Only happens in day time and even then, only sometimes happens.

- Willow Springs, IL, USA

When passing a large truck on a 4 lane road, adaptive cruse detected a collision and applied full braking. This occurred as I was in the trucks full shadow. Again last week while on the expressway and passing a semi, my vehicle detected a collision and applied full braking, again while in the semi's shadow.

- Naperville, IL, USA

Adaptive cuisse control falsely detects potential collision when passing semitruck (18-wheeler) on interstate/freeway highways as speed of 70mhp. The brakes are automatically applied and collision warning message goes off in the dashboard center screen. This happens very frequently when passing semitruck, to the point that I either disable the cruise or get ready to punch the accelerator in order to prevent a rear-end accident in case someone behind me.

- Austin, TX, USA

While the cruise is set and traveling on the interstate, in this case 70mph, when I pass an 18 wheeler the adaptive cruise control senses an imminent collision while passing the 18 wheeler in the left travel lane. The adaptive cruise immediately alerts and engages the brakes. Fortunately, this has not yet resulted in a rear end collision in my case however I'm sure at some point it will with owners of these vehicles. This has happened twice since I purchased the F150 in January(2015) and both occurrences happened while passing a tanker truck specifically and while in the left lane- tanker truck was in the right lane traveling at a slower speed perhaps around 60-65mph. This defect to me appears to be very dangerous because if my F150 engages the brakes for no reason and there were to be cars behind me a rear end accident could likely occur on the interstate. Ford has been very slow in responding to this safety concern and has not came up with a fix for this issue. Many on internet are voicing concern however are told by dealers that the system is functioning as designed and sent on their way.

- Omaha, NE, USA