2015 Ford F-150 Speed Control & Cruise Problems

"My 2015 Ford F-150 is experiencing an intermittent, complete loss of the Output Shaft Speed (OSS) signal within the 6R80 transmission lead frame. While driving at speed, the speedometer suddenly drops to zero, the 'wrench' light illuminates, and the vehicle performs an unintended, harsh downshift into a lower gear (Limp Mode/3rd gear). This creates an immediate safety hazard of rear-wheel lockup or a sudden loss of acceleration in traffic. i took my vehicle to a local repair shop where they could not duplicate the fault. i then called my local ford dealer who informed me unless it would duplicate the fault or show a code they could not repair the vehicle due to it being against warranty policy.

Vehicle unexpectedly down shifting while driving causing vechile to jerk. After parking truck, truck presents a no start condition and unlit gear selector lights. While driving truck will go in and out of limp mode. I have scheduled a appointment to bring the truck in for a diagnostic test 03/31/2026.

I have had 2 instances of my F150 downshifting at highway speeds to 2nd gear while driving. I was not towing a trailer, just driving normally in both cases on my daily commute to work. The first instance was resolved by coming to a stop, shifting to park, and shifting into drive again. The second instance, I released the accelerator completely, shifted the gear selector to neutral and back to drive while coasting and it seemed to correct. Neither have led to loss of control but it is startling and not a great thing for the longevity and safety of my vehicle. I see how it could become a problem. After instance number 1, I thought perhaps it was a fluke. I now have learned that there have been prior model years of this truck transmission that also have had issues and I am more concerned that this get resolved. I now plan to have vehicle looked at by a dealership in the near future. first incident was early September and second incident was Oct. 20, 2025.

i was driving on the highway at 50MPH in 5th gear. the truck goes in neutral on its own and then 1st gear for about two seconds and then back to 5th gear. the ground was wet and the rear tires skid. i believe that's what prevented the tires locking up and getting out of control it was a very scary situation that could have ended very bad.

I am driving back to Florida on [XXX] and my engine light comes on and the wrench symbol on my dash, as I am going about 70 mph and accelerate suddenly my truck going from gear/speed 6 down to 5. I take my foot off the accelerate and it goes back to speed /gear 6. If i stay at one speed and do not accelerate its ok, the minute I accelerate it changes speed. I took it into the Ford Dealer in Daytona Beach, and they are fixing the problem, but I don't have all the details. I am wondering if this is related to your recall to the 2014 F-150 where the problem is exactly like mine. I have not gotten the truck back, only that it is costing around $2400. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle speedometer working it radically

During normal highway driving, the vehicle abruptly went into "limp mode" with a complete loss of throttle control. The engine remained running, but I was unable to increase the speed of the vehicle. Once stopped, the vehicle showed several alerts on the dashboard: "Service Advancetrac," "Hill Assist Not Available," and "See Owners Manual." I was able to scan for fault codes and returned DTC P2112: Throttle Actuator Control System Stuck Closed. Upon further research, there is a Ford Technical Service Bulletin # TSB 16-0193 which states the vehicle may exhibit an intermittent loss of power and/or an illuminated powertrain malfunction (wrench) lamp with diagnostic trouble codes (DTCs) P2111, P2112 and/or P2119 stored in powertrain control module (PCM) memory." After restarting the vehicle, it returned to normal operation with the dashboard errors remaining. A Ford dealer is scheduled to look at the vehicle. I have been told they expect to diagnose and replace a faulty Electronic Throttle Body. Losing complete throttle control while driving on a busy highway is dangerous for many obvious reasons.

No lights previous to incident. Sudden engine & speed malfunction . Yes, it happened multiple times heading to the ford dealer-2 mi away. We kept the hazard lights on. Sudden loss of power while driving, engine goes into limp mode, down hill assist light and altrack light comes on. Truck restarts but again limps unexpectedly. Took it to dealer -it was the throttle body that had been replaced 3 1/2 years ago by dealer.

The contact owns a 2015 Ford F-150. The contact stated while driving at low speeds and attempting to park the vehicle, the vehicle inadvertently went into reverse, then accelerated forward. The vehicle failed to stop and jumped the curb and abruptly stopped. There was an abnormal clacking noise detected. There were no warning lights illuminated. The vehicle was restarted and drove as designed. The contact called the local dealer who informed him to schedule an appointment. The vehicle was not diagnosed or repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was approximately 153,000.

The contact owns a 2015 Ford F-150. The contact stated that while the vehicle was idling in the McDonald’s drive-thru pickup line, the vehicle suddenly experienced unintended acceleration and drove over the curb causing the driver to lose control of the vehicle and almost crashed into a wall. The cause of the failure was not yet determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 133,751.

A mechanic confirmed the truck has an issue with the speed sensor. On the daily, the truck will experience shifting issues, gets stuck in 3rd, and will not go past 5th. I have to turn off the vehicle and restart and it resets. I've read this is a known issue, and F150s for model years prior to and after 2015 have been recalled for this same thing. I also believe there are already a significant number of complaints for the 2015 model year for this exact issue. Please issue a recall.

I was driving down the road like I always do, the cruise control just shut off. I tried to re-engage it and it would not respond, about 15 minutes later I engaged the cruise control successfully. This has happened numerous times over the last three weeks and now in order to engage the cruise control, I lift with my fingertips, the top left and the bottom left of the button and then it will engage. One occasion, the dash lights in trip 1 mode flashed. Then the control began working again.

WHILE ON OPEN FREEWAY WITH ADAPTIVE CRUISE SET AT 70MPH PASSED A SEMI TRUCK THE BRAKES WERE APPLIED VIOLENTLY. THIS OCCURED 3 SEPARATE TIMES.

I WAS DRIVING MY 2015 F-150 ON A CITY STREET AT 35 MPH WHEN SUDDENLY MY TRUCK LOST ALL ACCELERATION POWER AND BEGAN TO SHAKE VIOLENTLY. THE ENGINE CONTINUED TO SHAKE AND SPUTTER AS I BROUGHT THE VEHICLE TO A STOP. THE SERVICE ENGINE LIGHT CAME ON ALONG WITH TWO CODES TO 'SERVICE ADVANCETRAC' AND 'HILL DECENT CONTROL FAULT'. I TURNED THE VEHICLE OFF, THEN RESTARTED. IT SEEMED TO TAKE LONGER TO CRANK, BUT IT STARTED AND I PROCEEDED DOWN THE ROAD. EACH TIME THE VEHICLE WOULD REACH 35 MPH THE SAME SEQUENCE WOULD OCCUR WITH THE VEHICLE SHAKING VIOLENTLY AND LOSING ALL ACCELERATION POWER ALONG WITH THE SERVICE CODES FLASHING. I RESEARCHED MY PROBLEM AND READ STORY AFTER STORY ON THE INTERNET OF OTHERS WHO OWNED 2015 F-150'S WITH THE SAME EXACT ISSUE HAPPENING. I EVEN FOUND A RECALL FORD ISSUED: 16B32 FOR A DEFECTIVE THROTTLE BODY, BUT WAS TOLD AT MY LOCAL FORD SERVICE CENTER THAT ALTHOUGH THE IDENTICAL THING HAPPENED WITH OTHERS, MY TRUCK WAS NOT LISTED UNDER THAT RECALL. I HAD TO PAY $500 OUT OF POCKET FOR THEM TO REPLACE MY DEFECTIVE THROTTLE BODY PLUS LABOR COSTS. THIS SEEMS TO BE A COMMON ISSUE WITH THESE 2015 TRUCKS. I WOULD LIKE TO SEE SOMETHING DONE TO INCLUDE MORE TRUCKS LIKE MINE WITH SIMILAR ISSUES INTO THAT RECALL. I SHOULD NOT HAVE BEEN RESPONSIBLE FOR PAYING ALMOST $500 TO GET THIS PROBLEM FIXED. I'M JUST GLAD I WASN'T ON THE HIGHWAY OR PULLING MY CAMPER TRAILER. IT'S JUST A MATTER OF TIME BEFORE SOMEONE IS KILLED OR BADLY INJURED BECAUSE OF THIS PROBLEM! PLEASE DO SOMETHING ABOUT IT BEFORE THIS HAPPENS!

LESS THAN 5 YEARS OLD AND ONLY 82,000 MILES ON MY 2015 F150, THE VEHICLE IS INOPERABLE BECAUSE OF AN ELECTRICAL ISSUE BETWEEN THE GAS PEDAL AND THROTTLE BODY. THIS HAS LEFT ME STRANDED ON THE SIDE OF THE ROAD WITH MY 6 WEEK OLD BABY IN THE BACK SEAT. DOING RESEARCH, IT APPEARS TO BE A KNOWN ISSUE WITH 2015 F150S AND IS CAUSING MAJOR SAFETY CONCERNS, BUT YET NO RECALL. WHEN DRIVING, THE VEHICLE SUDDENLY LOSES POWER AND SLOWS TO A COMPLETE STOP ON THE ROAD. WARNING LIGHTS ILLUMINATE THE DASH AND VEHICLE IS INOPERABLE, LEAVING US ON THE SIDE OF THE ROAD.

THIS VEHICLE EXPERIENCES EXACTLY THE SAME CHARACTERISTICS AS THE FOLLOWING NHTSA CAMPAIGN NUMBER: 15V614000 YET IS NOT SUBJECT TO THE RECALL. THE VEHICLE HAS ACTED IN THIS WAY AT LEAST 10 TIMES, THE MOST RECENT ON JUNE 24, 2020. THE VEHICLE MAY FALL JUST OUTSIDE THE PREVIOUSLY DETERMINED MANUFACTURE DATE WINDOW THAT DETERMINED THE RECALL POOL. FORD WILL NOT PERFORM THE SOFTWARE UPDATE TO SOLVE THIS PROBLEM AS THE VEHICLE IS NOT SUBJECT TO THE RECALL. PLEASE RECONSIDER THE VEHICLES INCLUDED IN THIS RECALL AS MINE MAY HAVE BEEN MISSED IN ERROR. SEPTEMBER 30, 2015 NHTSA CAMPAIGN NUMBER: 15V614000 UNEXPECTED BRAKING USING ADAPTIVE CRUISE CONTROL A VEHICLE THAT UNEXPECTEDLY BRAKES INCREASES THE RISK OF A CRASH. NHTSA CAMPAIGN NUMBER: 15V614000 MANUFACTURER FORD MOTOR COMPANY COMPONENTS FORWARD COLLISION AVOIDANCE POTENTIAL NUMBER OF UNITS AFFECTED 33,481 SUMMARY FORD MOTOR COMPANY (FORD) IS RECALLING CERTAIN MODEL YEAR 2015 FORD F-150 TRUCKS MANUFACTURED MARCH 18, 2014, TO AUGUST 6, 2015 AND EQUIPPED WITH ADAPTIVE CRUISE CONTROL (ACC). WHILE USING THE ADAPTIVE CRUISE CONTROL, THE VEHICLE MAY FALSELY DETECT AN OBSTACLE IN ITS PATH AND MAY UNEXPECTEDLY APPLY THE BRAKES. REMEDY FORD WILL NOTIFY OWNERS, AND DEALERS WILL REPROGRAM THE CRUISE CONTROL MODULE WITH UPDATED ACC RADAR SOFTWARE, FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 25, 2015. OWNERS MAY CONTACT FORD CUSTOMER SERVICE AT 1-866-436-7332. FORD'S NUMBER FOR THIS RECALL IS 15S29. NOTES OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO WWW.SAFERCAR.GOV. 1 AFFECTED PRODUCT VEHICLE MAKEMODELYEAR FORDF-1502015

VEHICLE ACCELERATED OF ITS OWN ACCORD DRIVING STRAIGHT ON HIGHWAY. TOOK TO DEALER (VILLAGE FORD, OCALA, FL), THEY RAN BLACK BOX AND DID WARRANTY WORK. A FEW WEEKS LATER, VEHICLE ACCELERATED AGAIN OF ITS OWN ACCORD WHILE ATTEMPTING TO SLOW DOWN TO MAKE A LEFT TURN. VEHICLE COLLIDED INTO A TREE.

WHILE ACCELERATING THE VEHICLE TO GET TO 55 MPH THE ENGINE SUDDENLY LOST THROTTLE RESPONSE AND BEGAN TO RUN ROUGH. SIMULTANEOUSLY THE DASH FLASHED THAT UPHILL ASSIST WAS DEACTIVATED AND FLASHED THE MAINTENANCE WRENCH. UPON PULLING THE VEHICLE OVER AND SHUTTING IT OFF AND RESTARTING IT THE VEHICLE RAN NORMALLY. THE FREQUENCY OF THIS INCREASED FROM ONCE EVERY COUPLE OF WEEKS TO NOW UP TO 5 TIMES IN 10 MILES. WHEN IT CAUSES AN OBD CODE IT IS P2112. IT OCCURS MOST FREQUENTLY WHILE ACCELERATING TO HIGHWAY SPEEDS BUT HAS ALSO OCCURRED WHILE AT HIGHWAY SPEED AND ACCELERATING TO VILLAGE SPEEDS OF 30 MPH. IT HAS EVEN OCCURRED ONCE WHILE USING CRUISE CONTROL AS THE VEHICLE WAS CLIMBING A HILL. AT THIS TIME IT IS UNKNOWN WHAT IS CAUSING THE FAULT. AN ATTEMPT HAS BEEN MADE TO CLEAN THE THROTTLE BODY AND THE PROBLEM PERSISTS. A NEW THROTTLE BODY IS ON ORDER BUT HAS TO BE INSTALLED YET TO SEE IF IT CORRECTS THE ISSUE.

I PICKED UP MY 2015 FORD F150 ON THURSDAY OF LAST WEEK BECAUSE THE MASTER CYLINDER WAS LEAKING AND CAUSED MY WIFE TO LOSE HER BRAKES WHILE DRIVING ON THE HIGHWAY. I DROVE MY TRUCK TO OUR FAMILY REUNION ABOUT AN HOUR AND HALF AWAY ON SATURDAY WHICH WAS 2 DAYS AFTER I HAD PICKED MY TRUCK UP AND THE CRUISE CONTROL WOULD NOT SHUT OFF BY TAPING THE BRAKE. MY WIFE AND I WERE TRAVELING ON A HIGHWAY AND I WAS IN THE SLOW LANE WITH THE CRUISE SET AT 72MPH. I WAS APPROACHING THE VEHICLE IN FRONT OF ME, SO I LOOKED IN MY LEFT MIRROR AND NOTICED A CAR COMING UP BESIDE ME. I WAS UNABLE TO PASS, SO I TOUCHED THE BRAKES TO DISENGAGE THE CRUISE CONTROL AND I LOOKED BACK IN MY MIRROR AGAIN TO SEE IF THE CAR BESIDE ME WAS GOING TO PASS ME SOON. MY WIFE THEN SAID WHAT ARE YOU DOING? I TOLD HER I AM GOING TO PASS THIS CAR IN FRONT OF US AFTER THE CAR BESIDE ME PASSED US. SHE THEN SAID WELL YOU BETTER SLOW DOWN BECAUSE YOU ARE ABOUT TO HIT THE CAR IN FRONT OF US. HERE MY CRUISE CONTROL NEVER DISENGAGED SO I TOUCHED THE BRAKES 2 MORE TIMES AND NOTHING HAPPENED. I FINALLY HAD TO SLAM ON THE BREAKS AND IT FINALLY DISENGAGED. I HAD ALMOST REAR ENDED THE CAR IN FRONT OF US. I THEN GOT INTO THE FAST LANE AND PLACED THE CRUISE CONTROL ON AGAIN AND FOUND OUT THAT I WAS UNABLE TO DISENGAGE THE CRUISE CONTROL BY TAPPING THE BRAKES LIKE YOU SHOULD. I HAD TO PUSH THE BRAKE PEDAL 2/3 OF THE WAY TO THE FLOOR WHICH AT THIS POINT YOU ARE STOPPING ON THE HIGHWAY. THIS IS THE THIRD SAFETY ISSUE IN LESS THAN 1 YEAR THAT ALMOST CAUSED AN ACCIDENT AND THAT IT HAS BEEN TOWED TO FORD. MY TRUCK IS CURRENTLY AT FORD. DEC 2018 THROTTLE BODY WENT BAD AND SHUT OFF WITH MY WIFE DRIVING MY TRUCK, SEPT 2019 MASTER CYLINDER WENT BAD AND CAUSED MY WIFE TO LOSE THE BRAKES WHILE ON THE HIGHWAY, AND SEPT 2019 CRUISE CONTROL NOT WORKING PROPERLY ALMOST CAUSING AN ACCIDENT.

ALERT - ALERT I WROTE BEFORE ABOUT TROUBLE WITH THE 2015 FORD F150 STALLING OUT WHILE DRIVING. I MECHANIC TOOK OURS OUT FOR A TEST DRIVE AND IT DID THE SAME FOR HIM ON THE INTERSTATE. PLEASE HAVE SOMEONE ADDRESS THIS ISSUE BEFORE SOMEONE DIES OR HAS SEVERE INJURIES DUE TO VEHICLE STALLING AT RANDOM AND FOR NO APPARENT REASON. I AM JUST GLAD HE WASN'T PASSING ON A 2 LANE ROAD OR PULLING A TRAILER. I CAN'T BELIEVE FORD HAS NOT ADDRESSED THIS - IT'S ON YOU TUBE. THIS IS THE OPPOSITE OF SPEEDING UP - IMAGINE YOU HAVE YOUR KIDS, ETC IN THE TRUCK, IN THE MIDDLE OF A MAJOR INTERSTATE WITH CARS ALL AROUND YOU AND YOU STALL OUT COMPLETELY. PLEASE, PLEASE DO SOMETHING ABOUT THIS. IT ONLY HAPPENS IN MOTION.