Problems with 2015 Ford F-150 VEHICLE SPEED CONTROL

Adaptive cruise control periodically detects a truck in the right as being in front of me. it activates the brakes to avoid a assumed collision even though the lane is clear ahead. the brakes have, on occasion, be applied automatically in a very strong manner. i am afraid that this condition can lead to someone rear ending my truck. the dealer could not confirm any issues, however it has happened own occasion since new.

On friday 10/28 while driving down the interstate at about 55 miles/hour at approximately 6:30pm with vehicles ahead of and behind my truck, the vehicle began to give a number of check engine alerts, at which time the engine rpms dropped to very low levels and began to stall and the accelerator no longer responded. had truck towed to the nearest dealership within the hour. i was very lucky in this situation, for had i been in a construction area or on a bridge, the situation could have been much worse. this same situation occurred on the evening of 10/2 while driving 40mph down a state road near my home and according to the dealer who attended to the issue, the brake module had failed which caused the symptoms to arise. in that instance, the accelerate failed to respond and the engine began to stall, which it did when i pulled to the side of the road. they replaced the module a few days later. in addition, the driver side door vibrates and does not latch properly. two dealers have failed to resolve this issue to date and i believe it is a safety concern that has largely been dismissed by the service technicians and dealerships involved. despite numerous documented attempts to resolve this issue with ford customer service, they have ignored this concern, have failed to respond to me in a timely manner, and declined a buyback request. i am submitting lemon law documentation for the vehicle during the week of october 31. i have spent hundreds of dollars on rental vehicles during attempted repairs to the doors and the brake module since ford claims they will not cover the cost of rental vehicles during warranty repairs. repair documentation attached pertains to repairs for 10/2 occurrence since the dealership has not yet had an opportunity to inspect my vehicle since it was dropped off yesterday evening. i will gladly provide info once received.

My fiance and i were driving down the highway, with no cruise control on, and suddenly my sensors go off as if i was about to hit something. then after a second (probably was only a split-second, but it felt like forever), it went away. if adaptive cruise control would have been enabled, this would have caused the brakes to automatically press (i know because this has happened to me before). i was passing a semi, if that helps. this is a very dangerous issue (sensors thinking they are going to hit something, when it should be nothing). i wish i had a video of it happening, but it only has happened 3 times for at most 3 seconds in the the 1.5 years i have owned the vehicle.

I was driving down the highway, with no cruise control on, and suddenly my sensors go off as if i was about to hit something. then after a second (probably was only a split-second, but it felt like forever), it went away. if adaptive cruise control would have been enabled, this would have caused the brakes to automatically press (i know because this has happened to me before). this is a very dangerous issue (sensors thinking they are going to hit something, when it should be nothing). i wish i had a video of it happening, but it only has happened 3 times for at most 3 seconds in the the 1.5 years i have owned the vehicle.

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.

Vehicle brakes suddenly when on adaptive cruise control, particularly near semis hauling containers. vehicle was recalled for this previously and still exhibits unsafe braking at highway speeds.

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.

Tl* 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.

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.

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.

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.

Tl* 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.

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.

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.

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?

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.

Tl* 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.

Tl* the contact owns a 2015 ford f-150. while driving approximately 70 mph, the push start button was touched and the vehicle shut off while still in drive, causing the vehicle to slow down in the middle of traffic. the contact was able to pull over and restart the vehicle. the contact tested the failure at various speeds and the failure recurred. the contact spoke with the dealer who stated that there was no recall related to the failure; however, the dealer also stated that the cruise control needed to reprogrammed and further inspection was needed. the vehicle was not repaired. the manufacturer was not made aware of the failure. the failure mileage was 6,000.

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.

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.

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.

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.

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.

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.

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.

Adaptive cruise control was set and engaged on vehicle at 75 mph. my vehicle was traveling on inside lane of four lane divided highway and came up on slightly slower vehicle traveling in the same lane at around 70 mph. my vehicle slowed down and tracked the other vehicle for about a mile before coming up on a slower moving tractor trailer truck in the outside lane. as the vehicle in front on my truck passed the tractor trailer on the inside lane, it moved over in front of the tractor trailer to the outside lane to allow me to pass. instead on speeding up to 75 mph, my truck started to brake before i disengaged the cruise control (around 65 mph). at that time, i was located beside the tractor trailer near the back of the trailer. a vehicle following me had to brake due my truck unexpected braking and slow down.

When driving at night in the far left lane going 72 mph with the adaptive cruise control on, the truck randomly slammed on the brakes and the red crash indicator flashed although there was nothing in front of the truck. if someone was behind me, it is likely they would have rear ended my vehicle. there seems to be a defect in the auto cruise control,although ford believes this behavior is normal.

The truck is equipped with adaptive cruise control and collision alert systems. intermittently, when traveling at interstate speeds with the adaptive cruise control activated and passing tractor-trailer sized vehicles, the adaptive cruise control will falsely sense another vehicle directly in front and activate the brake system, resulting in rapid deceleration of the truck and creating the potential for a collision from behind. when the system activates, there are no other vehicles in front of the truck, only in the adjacent lane. this has happened over half a dozen times, and has resulted in near rear-end collisions from vehicles behind the truck because of how rapidly the adaptive cruise control slows the truck. passengers in the truck have been thrown into their seatbelts from the rapid deceleration of the truck. luckily no one has been hurt, but this presents an extreme safety problem and has resulted in having to turn off the adaptive cruise control and collision alert systems. ford has not successfully created a fix for the problem. this problem has been well documented at http://www.f150forum.com/f118/adaptive-cruise-malfunctions-scary-299485/.

While driving vehicle on highway and going to pass another vehicle when passing all of a sudden the vehicle will go from 70 mph and drop to around 40 mph with out no indication it's going to do this. now this vehicle will do this anytime on highway you don't have to be passing anyone.

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.