2021 Ford F-150 transmission problems

Filed Nov 9, 2026 · Driver assistance, Transmission · SC

10R80 Transmission downshifts violently when slowing down and shifting between 5-3 almost replicating being rear ended. Happens several times a week and worse when ambient temperature is low

Filed Nov 8, 2026 · Transmission · TX

My F-150 with the 10r80 is notoriously awful, and unfortunately scary. Violent large downshifts and gear hunting leaves you wonder if you’re going to be being stranded or not. Fortunately for my extended warranty, I got my torque convertor replaced, but the dealer declined I needed transmission rebuild or replacement. Now out of warranty with a truck recently paid off, my nightmare is still current, I’m now facing not only a $7,000+ transmission bill, but I genuinely fear on a normal commute that something could be very wrong. Thousands upon thousands of people have the exact same fear and issue as me. I hope there will be a resolution.

Filed Nov 7, 2026 · Transmission · NJ

When driving the vehicle the transmission seems to not be able to find the proper gear. It shifts hard from 4th to 3rd it will shift into different gears at highway speed which has become extremely dangerous and shifts hard from park to drive. My truck is equipped with the Ford 10R80 transmission. This vehicle is not safe to drive at times and seems to be a manufacture defect in the way the transmission was built. Please issue a recall on this transmission so my vehicle can be safe to drive.

Filed Nov 6, 2026 · Lights, Transmission · FL

10r80 transmission failed at 80k miles. There were multiple occasions where leaving a stoplight it would move and then basically go into neutral while hunting for gears to start moving again. The drls on the headlights have both failed so now in between westher events and day/night events the vehicle no longer has a working drl. If it is cloudy and the headlight sensor doesn’t trigger the headlights to come on there will be no lighting from the front of the vehicle at all

Filed Nov 6, 2026 · Lights, Transmission · FL

10r80 transmission failed at 80k miles. There were multiple occasions where leaving a stoplight it would move and then basically go into neutral while hunting for gears to start moving again. The drls on the headlights have both failed so now in between westher events and day/night events the vehicle no longer has a working drl. If it is cloudy and the headlight sensor doesn’t trigger the headlights to come on there will be no lighting from the front of the vehicle at all

Filed Nov 6, 2026 · Transmission · TX

Hi my name is [XXX]. I bought my 2021 F-150 used with 40k miles. I love my truck and spend the money to keep up with all of the maintenance in hopes that it will last me a long time. At 61k miles, my transmission blew which seems insane to me. These 10 speed transmissions and known CDF drum failures are happening to so many people I talk to. I’m filing a complaint bc even my new transmission is experiencing hard shifts already after driving it for 9k miles. How many transmissions will I have to go through before Ford takes accountability. It’s unfortunate that these trucks cost so much money and then you potentially have to dump another $20k into it before even reaching 100k miles. I’m filing a complaint because I believe Ford should recall the CDF drum failures a do right for the customer. To my knowledge, these issues were fixed around 2024 models. Additionally, my transmission went out on a toll road where the speed limit is 85mph. I lost significant power and had to reduce my speed to 55-60mph which is a huge safety concern when people are passing you going 30mph faster than you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 6, 2026 · Transmission · FL

Automatic 10 speed transmission often downshifts very hard from 8th/10th down to 2nd/3rd when trying to accelerate, causing sudden loss of speed. This is incredibly dangerous while traveling at higher rates of speed on highways and interstates. I have almost been rear ended several times while this happens because my truck will downshift with a very hard jolt (sometimes even locking the tires for a split second), then decelerate from 60/70 mph down to 20/30 mph with fast moving traffic right behind me. Since the break lights aren't engaged there is no visual warning to drivers behind me that my truck is slowing down to a crawl. These transmissions are a safety hazard for everyone on the roads, and Ford needs to be held accountable for this.

Filed Oct 31, 2026 · Transmission · WA

Transmission had very violent downshift out of nowhere when coming to a stop. This has happened multiple times and it sounds like I’m not the only person who is experiencing this.

Filed Oct 27, 2026 · Transmission · TX

The cdf is outdated and the truck would get stuck in the wrong gear and not work. I was only 3,800 miles over the 60k mile warranty and having to pay out of pocket for a updated cdf drum that ford has created because they know the old ones are faulty

Filed Oct 26, 2026 · Transmission · 107,000 miles · TN

The contact owns a 2021 Ford F-150. The contact stated that while driving 15 MPH, the transmission independently shifted into park and the wheels screeched to a stop. The dealer was contacted and made aware of the failure, and the contact was informed that the parts were unavailable to repair the vehicle. The failure became persistent with the check engine warning light illuminated. The contact stated that the vehicle was unsafe to drive. The contact had very important doctor’s appointment scheduled, and the vehicle was the only source of transportation. The contact received notification of the federal safety agency Campaign Number: 26V402000 (Power Train); however, the part to do the recall repair was unavailable. The manufacturer was contacted, and several cases were filed. The failure mileage was approximately 107,000.