2015 FORD F-150 Complaints

I own a 2015 Ford F-150 with approximately 175,000 miles. I have experienced intermittent hard shifting at low speeds for many years. During normal driving, the transmission occasionally shifts very harshly, producing a loud knocking noise and causing the truck to jerk unexpectedly. I do not recall the exact first occurrence, but the hard shifting has been happening since I have owned the truck. I never thought much of it until recently reading about a transmission investigation for similar F-150 models. In December 2025, I experienced a particularly severe hard shift. During this incident, the truck jerked extremely hard and the powertrain warning light momentarily illuminated. This felt unsafe and unexpected. I had the vehicle inspected by an independent mechanic, but no diagnostic trouble codes were found at the time of inspection. Despite this, the hard shifting continues to occur intermittently. This issue is a safety concern due to the sudden and harsh movement of the vehicle without warning.

Uncommanded downshift at highway speed causing sudden deceleration / loss of vehicle stability. Has happened twice, once in 2020 and again in 2025. Typically in slower than highway speeds when traffic is moderate to high and traffic starts to clear. Accelerator is pressed to return to highway speeds and the vehicle downshifts suddenly. Nearly caused collision from the rear vehicles both times.

First time my transmission downshifted to 1st gear coming to a stop at approximately 35mph while gently braking. The leadframe turned out to be defective. Approximately 60k miles later the same symptom and same failure. The leadframe was replaced and that solved the problem.

Was driving my truck to work and all of a sudden it down shifted from gear 6 to gear 4. Then through up the wrench icon on dash. Would not come out of 4th gear. Code was p0720. Output shaft speed sensor. Once code was cleared, it was ok again for about 20 miles then did it again.

I was driving down the road at 45mph and the vehicle suddenly shifted into 1st gear and rapidly slowed down. A malfunction indicator came on, I shut the vehicle off thinking it was a glitch, then the vehicle wouldn't restart. This occured in midday traffic, which could've caused a crash. Never had any previous issues with the vehicle. It cost me $1854 to have this repaired at the Ford dealer, they stated the lead frame connector had failed.

My truck abruptly downshifts to a lower gear, first or second, without any warning on the freeway. Seems like wheels lock up momentarily. There is nothing that notifies me before this happens. Very random occurrence but also very dangerous.

The contact owns a 2015 Ford F-150. The contact stated that while driving approximately 40 MPH or less while in 5th or 6th gear, the transmission unexpectedly downshifted to 1st gear. The “WRENCH” warning light was illuminated. The contact restarted the vehicle to turn off the warning light. The contact called a certified Ford mechanic and was informed that the lead frame and valve body had failed. The mechanic stated that the valve body, lead frame, and sensor needed to be replaced. The mechanic also informed the contact that it was a common issue with the vehicle. The vehicle was not repaired. The contact was made aware that the failure was related to NHTSA Open Investigation Number: EA26001 (Power Train). The manufacturer was informed of the failure and confirmed that the VIN was not under recall. The failure mileage was approximately 69,000.

I can have the vehicle available for inspection. I have to hold the truck door shut while driving it when the issue happens. There has been no confirmation of the issue by a dealer or independent service center. There has been no inspection of the problem by the insurance company, manufacture, police or others. This year during cold weather the issue started. I bought the vehicle used. -------------------------------------------------------------------------------------------------------------------------------------------- I have a 2015 f150 and when it gets cold i can open my driver's side door, but when i go to close the door, it won't latch.   The inside door handle is really loose, like it's not attached to anything.  Once the vehicle heats up, the door handle gets stiffer, like it is connected and I'm able to close the truck door.  This only happens when it's extremely cold outside.  I was told by a ford dealer that this is not a recall door actuator problem.  They think it may be the door cable that connects to the inside door handle.  They stated it may or may not be a warranty replacement and not a recall.  They say it would be around $149 to diagnose the door problem, and if it's not a warranty replacement, I will have to pay the diagnosis cost and repair cost.  They say the only way to know if the door repair is under warranty is for them to go inside the door and diagnose.   So this is my concern.  I have an extended warranty on the truck and it runs out at 147,000 miles.  I'm at 144,000 miles.  If I take the vehicle to them and they take the door apart and then say it's not a warranty or recall issue, this could cost a lot of money.  With all the problems that the F150 has with the door lock problems when the temperature gets cold, it seems to me that Ford should know right away that my truck door problem is a common problem and it should be covered immediately under a recall or warranty.  I bought the truck used.  Let me know your thoughts on this.

Rough shift in 4th gear .. transmission bangs going in and out of 4 th gear ..There's been news reports your investigating this issue and that it could possibly cause the transmission to lock up at highway speeds

The rear window just completely shattered on it's own. The glass pieces were still mostly connected to each other, but the entire glass panel was cracked into small pieces. The vehicle luckily was parked at the time. But, when my daughter got in the car, she touched the glass with her finger thinking it was ice, and cause a section to completely fall apart, with some glass getting on her (one of the pictures shows this hole). It was the coldest day we had in NJ in a number of years. The front of the truck was facing south and it was cold, but sunny (high temperature that day was 19F, low temp was close to 0F). Around 3:45pm, I needed to drive my daughter somewhere, so I remote started the truck, which I'm not sure if it puts the rear defroster on. It's not known if it cracked before I remote started or not. The rear window has a center sliding window panel, which that center panel was perfectly fine. It had snowed about 5 days before, and snow was still on the ground, but the truck had been thoroughly cleaned and driven since then, with no visible snow or ice anywhere on it. The entire rear window glass was in perfect condition before this, no chips in it or any issues. I gave details to the dealer on their online chat tool early this morning, which I was told someone would contact me back, but I haven't heard anything back yet. I had read online about many other people having the same thing happen with their F150 around the same year as mine, so I wanted to report this, as the window shouldn't just completely shatter, and appears to be a known issue.