Randomly the hill start assist control error would come up. Additionally, service advance trac error would come up and the truck would go into some sort of limp mode with no acceleration allowed. Finally, the truck started running really rough. All these things would happen while I was in motion and or turning. I have been broken down on the side of the highway 4 separate times now. Everything is really random and can't be replicated. It's done this about 10 times now and the dealer has no idea how to fix it. My truck has been there for over a week with no remedy.
2015 Ford F-150 acceleration complaints
Page 4 of 6: complaints 71 to 100 of 146, newest first, as owners wrote them.
Truck goes into limp mode constant in middle of traffic. Severe safety hazard for all. Throws throttle body code. According to dealer its not covered in yhe recall or whatever ford called it but its gonna get us killed.
Driving on highway at 60 MPH, climbing slight incline, multiple warnings regarding hill assist, ABS, traction control, etc. Populate on dash. Truck goes in to "limp" mode, steering becomes stiff and speed reduces until it comes to a rough idle.
This is the second time the engine just seized on me while driving in motion, on the interstate, at a high rate of speed and I would have to change the gear to keep it from stalling! This is a serious safety issue. I am taking it in for service at autonation ford in sanford fl, again today!
Tl* the contact owns a 2015 ford f-150. While driving 70 MPH, the vehicle's throttle completely failed and several unknown warning indicators illuminated. The contact was able to coast the vehicle to the side of the road and restart the vehicle. The vehicle was taken to holmes tuttle ford lincoln (660 w auto mall dr, tucson, az 85705, (866) 930-6255) where it was diagnosed that the throttle body needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 79,500.
When I started the car, put it in drive, the truck went to full throttle on its own without touching the accelerator, and it took off at an excessive speed. I tried braking, but it just threw me into a power slide. So, once I was finally able to straighten the car without flipping it, I could turn loose with one hand and kill the engine. That's the only way it would stop. I was forced to go through the yard with things flying out of the bed of the truck ruining a 5 gallon can of paint we had mixed to paint the inside of the house. I am a professional truck driver, and this scared the death out of me.
Tl* the contact owns a 2015 ford f-150. While driving 60 MPH, the vehicle stalled and the engine would not restart. The contact attempted to restart the engine; however, the vehicle began shaking and would not stop. Also, 'hill descent control fault' and 'service advancetrac" appeared on the instrument panel. The vehicle was towed to paducah ford (3476 park ave, paducah, ky 42001, (270) 444-0011) where it was diagnosed that a new throttle body needed to be installed. The contact planned to have the vehicle repaired this week. The manufacturer was made aware of the failure and stated that the vehicle was not included in a recall. The failure mileage was 104,000.
My 2015 f150 ecoboost has 79,156 miles on it. Over the past 3 days the truck has repeatedly lost power while driving in traffic on the highway. The RPM will drop down to 500 RPM, rough idle, no acceleration at all, hill assist light wrench light check engine light passenger air bag light and see owners manual pop up on the instrument panel. Took my truck into ford today and they replaced the throttle body under my extende warranty not their emissions warranty as stated in their owners manual of 8 years or 80,000 miles. Called ford and they don't know about an emissions warranty in their owners manual. Looked online and youtube to discover this problem is not just me and frequent with others. This can really cause a horrible accident. Luckily I'm a cdl driver and was able to safely get over on the shoulder this time. I'm not confident replacing the throttle body was a fix as it is a bandage to happen again at any point in time. This truck now is compromised and I wouldn't want any of my family using it or depending on it.
2015 f-150 3.5l ecoboost driving on highway at speeds 60-75mph went to "limp mode" losing all acceleration with warnings "service advance trac" "hill descent control fault" and "hill start assist not available" along with the service wrench light. Resulted having to pull over on interstate 10 with busy traffic, also while in the middle of a traffic light turning left. This has happened 6 times. Ford dealer has diagnosed this as a throttle body issue and will be replaced at my cost
Tl* the contact owns a 2015 ford f-150. While driving 35 MPH, the vehicle lost acceleration and lunged forward. In addition, the traction control and hillside assist warning indicators illuminated. The vehicle was pulled over to the side of the road and was restarted. Tamiami ford (1471 airport-pulling rd, naples, fl 34104, (239) 643-3673) repaired the electric throttle body. The vehicle was repaired. The diagnosis information was unavailable. The manufacturer was made aware of the failure. The failure mileage was 38,000.
My ford truck has had issues with lurching while at a stop, hard downshifts. And as of friday night, going from 75 MPH on the interstate to a dead standstill as though my transmission locked up. Almost created a pileup on interstate 70. Then would have RPM btwn 5 to 8 going 20 MPH. 2015 model v8 with ecoboost. My year was not part of the recall announced but the symptoms described in that recall fit mine exactly. I am going to file a complaint with ford as well.
P2112 obd error code - throttle body closed - while driving at any speed - in this case on the highway - engine would drop to limp mode, various errors display on dash. Have to pull over, shut off engine, then restart it to reset. Know issue with numerous ford f150 ecoboost and mustang gas engines. This is very dangerous especially if I cannot pull off to the side to shut off the motor. Very high possibility of getting rear-ended by other fast moving cars potentially causing harm to driver and others.
Speedometer reads 15 MPH when parked and 15 MPH more than actual while vehicle is in motion.
I was travelling along at highway speed and suddenly the truck lost responsiveness to the accelerator pedal and went into limp mode. I had to move over to the shoulder of the road rapidly to avoid becoming a hazard to other drivers as my speed was slowing significantly. This has happened on several occasions on both surface streets and on highways/freeways. I have been told that the electronic throttle body is faulty. This fault has created a hazard for me and other drivers due to the sudden loss of power and the hazard that represents on roads with no shoulder.
Was driving on road with 35mph speed limit, looked down at speedometer and said I was going 85, ever since the speedometer is stuck between 35 and 95, when stopped it lays at 35-40mph. Have read many others with similar issues.
While using the adaptive cruise control, the vehicle falsely detects an obstacle in its path and unexpectedly applies the brakes.
Tl* the contact owns a 2015 ford f-350. The contact stated that while driving 70 MPH, the vehicle shakes and was uncontrollable. The contact had to slow the vehicle to 30 MPH. There were no warning lights illuminated. The vehicle was taken to the local dealer rowe westbrook (91 main st, westbrook, me 04092, (207) 854-2555) where it was diagnosed that the sway bar needed to be replaced. The vehicle was repaired however the failure recurred. The manufacturer was not contacted. The failure mileage was 24,856.
Tl* the contact owns a 2015 ford f-150. While driving 30 MPH, the vehicle stalled and failed to accelerate. The contact stated that the failure also occurred while driving 60 MPH. The vehicle was taken to jim bass ford (4032 w houston harte expy, san angelo, tx 76901, (325) 949-4621) where it was diagnosed that the failure was due to the throttle body. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 70,300. *tt
2015 ford f-150 ecoboost, bought april 2018 with approx. 67,000 miles, currently at approx. 75,000 miles. I am reporting the sudden loss of accelerating power as the vehicle shudders and stalls both when moving with traffic or accelerating to enter or move with traffic. Multiple warning messages including the wrench light flash in the dash message area as the engine slows to idle with no ability to accelerate and comes to a stuttering stop. The first occurrence was three weeks ago and has happened no less than six time since - twice while accelerating onto the freeway (very busy, very fast traffic) and twice while crossing or turning in multi-lane intersections from stopped. Four of the six times resulted in my vehicle dying in and obstructing traffic with and me barely getting to the side of the road without an accident. I now shift to neutral to let momentum move the vehicle as I worm through traffic to the side of the road. Shutting off and restarting the engine clears or resets the message and sometimes "downhill assist not available" with the check engine light comes on. The check engine light has both stayed on or shut off on restart. I can then drive on the vehicle's own power, though the problem has repeated as soon as two minutes later, or not for days. I have not had to be towed and no accidents have occurred. The north carolina consumer's council filed a lawsuit against ford in 2015 which was settled with ford offering an extended warranty only on the etb (electronic throttle body) of certain model vehicles - all with the ecoboost engine, and multiple customer service actions (csa's) that have since expired. A few minutes on the ford forums online and it is apparent that this is a widespread problem with the ecoboost engine, and ford has offered several bandaids, but none until after the etb has failed and lives been endangered.
2015 ford f-150 ecoboost, bought april 2018 with approx. 67,000 miles, currently at approx. 75,000 miles. I am reporting the sudden loss of accelerating power as the vehicle shudders and stalls both when moving with traffic or accelerating to enter or move with traffic. Multiple warning messages including the wrench light flash in the dash message area as the engine slows to idle with no ability to accelerate and comes to a stuttering stop. The first occurrence was three weeks ago and has happened no less than six time since - twice while accelerating onto the freeway (very busy, very fast traffic) and twice while crossing or turning in multi-lane intersections from stopped. Four of the six times resulted in my vehicle dying in and obstructing traffic with and me barely getting to the side of the road without an accident. I now shift to neutral to let momentum move the vehicle as I worm through traffic to the side of the road. Shutting off and restarting the engine clears or resets the message and sometimes "downhill assist not available" with the check engine light comes on. The check engine light has both stayed on or shut off on restart. I can then drive on the vehicle's own power, though the problem has repeated as soon as two minutes later, or not for days. I have not had to be towed and no accidents have occurred. The north carolina consumer's council filed a lawsuit against ford in 2015 which was settled with ford offering an extended warranty only on the etb (electronic throttle body) of certain model vehicles - all with the ecoboost engine, and multiple customer service actions (csa's) that have since expired. A few minutes on the ford forums online and it is apparent that this is a widespread problem with the ecoboost engine, and ford has offered several bandaids, but none until after the etb has failed and lives been endangered.
The electronic throttle body failed prematurely on my ford f150, causing the vehicle to lose the ability to accelerate and subsequently go into limp mode while traveling at normal speeds (has happened 4 times between 35 and 50 MPH). This causes a very dangerous situation trying to get out of traffic and to the side of the road, as well as potential loss of control and handling. A ford dealer attempted to diagnose the problem after 3 incidents, but was unsuccessful and told me the problem may be the throttle body (but they did not replace it).
There is an existing adaptive cruise control safety recall open for this year, make, and model, but my truck also experiences the exact same issues described by ford on their own site every time I use the adaptive cruise control: https://media.ford.com/content/fordmedia/fna/us/en/news/2015/09/30/ford-issues-five-safety-recalls-and-one-safety-compliance-recall.html I'm sure that the existing safety recall needs to be expanded to additional vins within the f-150 range of vehicles. It is extremely dangerous in the way it currently operates.
At times my 2015 f150 loses all power and go to a low power/ "limp mode" setting. Cautions received are (1) service advance trac, (2) hill descent control fault, (3) hill start assist not avail, (4) traaction control fault light. When this occurs, the vehicle goes to a very low forward power setting (<5mph), runs extremely rough to the point where the vehicle shakes aggressively. This problem is intermittent in nature, and yesterday was the final straw. This suddent oss of power occurred on a busy road and I nearly got rear ended. I immediately limped off the road and was able to get the vehicle towed to the dealership in castle rock, co. Currently I'm standing by for the mechanics diagnosis. Of note, I do see several similar write-ups of this problem on the federal safety agency site regarding the 2015 f150. Ironically, a similar occurrence (ref. Nhstsa id#11083485) happened right up the road from me in castle rock, co (4/5/18). I hope ford is aware of this extremely dangerous, recurring problem within its f150 fleet.
Driving on the inside lane on a straight road with no vehicles in front of me. Halfway past passing a medium size box truck in the outside lane my truck flashed collision avoidance and slammed on the brakes for one second. It immediately released and sped up to where I had the cruise previously set at 65 MPH. Ford dealer said they applied the factory computer reset 30 months earlier while owned by the original buyer. Recall # 15s29. Dealer said he could do nothing more.
While using the adaptive cruise control on my 2015 ford f-150 (king ranch), my truck will confuse a dump truck as a stopped or slow moving vehicle in front of my truck. This will happen if a dump truck is in the lane beside me or in opposing lanes. This occurs at sow and high speeds. Multiple times this has occurred at 65mph+ in traffic. The truck will very abruptly apply the breaks and the collision warning system will alert. This has almost caused very serious wrecks due to the speeds that it often occurs. This is also not a seldom occurance, it happens every time I pass by a dump truck. It will occur on any and every street. I took the vehicle to a ford delearship and their solution had no effect on the issue.
Tl* the contact owns a 2015 ford f-150. While driving unknown speeds, the vehicle stalled. When the vehicle was restarted, it operated normally. The failure occurred multiple times. The vehicle was taken to billion auto ford of clear lake (3101 willow creek ct, clear lake, ia 50428, (641) 903-2299) where it was diagnosed that the throttle body and motor assembly failed. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was 84,129.
Adaptive cruise control sensor and braking activate in error when there is a large truck on the side of the vehicle. Vehicle will hard brakes as it thinks the car in front has stopped when there is no car in front of you. It is falsely seeing the truck in the other lane to your side. I had it into ford for another issue and told them. They said there was "an update" but it is still doing the same thing. This is dangerous as the vehicle slams on the brakes by itself almost causing cars behind you to hit you. The vehicle should not hard brake due to a truck on the side of the car!. Just today my car did it twice on the highway. Once this morning and again on the drive home. I am driving at highway speeds, clear day, I'm in my lane and passing a slower truck on my right and the adaptive cruise braking slams on the brakes. It is intermittent and I'm not sure why its reacting to a large truck that is not in front of me. While it didn't result in a "crash" it could have if the person behind me hadn't been paying attention. This is a serious defect!!
Multiple incidents have occurred where adaptive cruise control applies hard deceleration to the vehicle while at highway speeds without warning or without an object in front of the vehicle. Approx travel speed has been 65mph and vehicle collision warning comes on and instantly brakes causing a 10mph or more deceleration. It has happened on curves or when driving near a truck. Recent incident was moving from right lane to the left lane of a highway to pass a truck and another vehicle was following mine. As I approached the tractor portion of the tractor/trailer, my truck braked hard and the vehicle behind me nearly crashed into the back of my vehicle. The other driver wasn't expecting me to brake while passing another vehicle to its left. This has happened multiple times. I have contacted ford and they admitted that there is a problem with the adaptive cruise system and that it was a safety issue but they had no plans to fix/recall the issue. Question - how many rear impact accidents/incidents/potential incidents will it take for ford to address this serious unannounced braking issue. It is very unnerving to be driving at highway speed and then to be thrown forward for no reason because your vehicle brakes. Ford did acknowledge that this is a problem and yet does not wish to address it likely until there is death to lawsuit after which it will have been too late for someone. Please exert whatever pressure you can to get verification from ford and have them address this problem with a recall before someone is killed. Thank you. Highway speed adaptive cruise control on on curves or straight roads near a tractor trailer collision warning/braking/rapid deceleration nearly causing multiple rear end accidents - many incidents ford verified but refuses to fix
This issue has now happened 6 times without showing a pattern. While driving the vehicle completely loses all throttle power and the message center displays 'service advancetrac' 'hill start assist disabled' and the ABS and service engine lights illuminate. This has happened on back roads at slower speeds and on highways at 70 MPH. Again, all throttle power is lost. This issue has been reported on numerous forums and there have been 2 consensus fixes, replace throttle body and an apparent issue with the tightness of a throttle cable.
My truck odometer shows I have 26582 miles on the truck. And the engine hours shows I have 867 hours. However rusty wallace service department said I have 63000 miles according to the PCM!!! I have transmission problems and they do not want to fix the truck under warranty. I content that the truck is still under warranty I have not done anything to the odometer. I have pictures that show I was doing 72 miles a hour and on the digital speedometer but the other speedometer showed I was doing 90 miles a hour. I parked the truck and it stilled showed I was doing 20 MPH. I have attached the photos.
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