2021 Ford F-150 Hybrid

Several times, the vehicle has failed to accelerate or respond to accellerator pedal input for several seconds. It seems to happen when switching from electric to hybrid modes, and when shifting between lower gears simultaneously. Once the switch to hybrid occurs the engine will rev high with some acceleration even if the accelerator pedal is no longer being pressed. This acceleration has happened when I had my foot over the brake pedal in anticipation of pulling over to stop since the truck would not accelerate. There are no warning lights or messages that appear on the vehicle. It is dangerous because it seems to happen when trying to accelerate from a lower speed. If it happens when trying to change lanes in stop and go traffic or while pulling into traffic other cars would have to brake hard to avoid hitting our vehicle that has experienced stalled acceleration. It is also dangerous because once the transition happens there is brief uncommanded acceleration.

My truck because of the transmission and it's "powertrain" faults; puts itself in low power mode. I can be driving fine, stop for a red light, to turn a corner or before pulling into oncoming traffic leaving a parking lot etc and without warning, no power. It won't go over 5-10 miles an hour. You have to let off the gas and give gas sometimes more than once to get the truck to finally pick up and go. I have almost been hit countless times because I suddenly couldn't get out of the way of oncoming traffic. The dealer has confirmd to me a few times that this is a transmission issue that is sending my powerboost into low power mode. I believe he said the tech that drove it said it was dangerous; but a known issue. Started a few years ago and doesn't happen all the time. Occurs sporadically and lately more and more frequently.

2021 ford f150 PowerBoost hybrid. There is a LOT of internet chatter and forum chatter about KNOWN issues with the following, and it recently almost led to a major and likely serious injury accident. Specific Parameters: Low speed (~5 mph) slow roll Under internal combustion power, not battery In 2nd gear only When gas pedal is pressed vehicle does nothing. Does not respond. Two choices are to hammer the gas, or hit the breaks. Does two things, slams forward eventually after 3-4 second delay if gas pedal depressed OR shifts down or into electric mode (internal combustion off) and then will once again go from first to third in normal acceleration progression and pace They must have an issue with the standard 1-3 skip programming with ICE power and 2nd gear being a hang-up I almost got T boned by a semi truck due to this with family in car. This could have been deadly. It happens as an annoyance at least once per day but this one was scary. Online, and based on what I can find - Ford is aware of this issue as they have the 1-3-5 programming in the transmission but when it finds itself (due to real world driving conditions) in 2nd gear under Internal combustion, it does not know what to do. I brought it to Ford last year in Anchorage and they are attempting to blame it on normal hybrid system operation. That is NOT the case. It would be something that could be duplicated but with effort. A basic, simple test drive is NOT going to find this. They are aware of this being an issue. If you have any situation where you are rolling through, merging into traffic, or other scenario where you end up in 2 under ICE you are in TROUBLE. Dangerous, scary, and totally a manufacturer issue that is known and needs to be taken VERY seriously.

The contact owns a 2021 Ford F-150. The contact stated that while the vehicle was parked, the vehicle was started, and several unknown warning lights illuminated. In addition, the contact stated that the gear shifter failed to shift into neutral while the vehicle was being towed. In addition, the contact stated that the gear shifter was stuck in park(P). The vehicle was towed to the dealer where it was diagnosed with powertrain control module failure. The contact was informed that the powertrain control module needed to be replaced. The vehicle was in the process of being repaired. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 102,000.

I purchased my truck in March of 2024 with an undisclosed problem from a dealership in Texas. I contacted them two weeks after it began and they said they couldn't do anything as is the greatest business disappointment of American commerce when used vehicles are purchased under the "As Is" clause. The undisclosed problem is this, my truck loses acceleration power for up to 20 seconds in dangerous situations when I attempt to increase speed from a stop or slower speeds and the truck doesn't shift to accelerate to reasonable speeds. This situation happens each time I drive this truck. The scarier situations happen when changing lanes, turning left, or right, or making U-turns. Each of these conditions threatens safety every time this happens, but more so when there is fast-moving traffic coming behind after changing lanes or if on-coming traffic approaches my now power-less truck when making a left/u-turn. My local dealership shop found the CBF drum in the transmission to be faulty causing internal leaks which fail to engage the gearing system. The repair cost to make my truck safe again is over $7.2k. If this truly is a safety failure problem, I request NHTSA for payment to my dealer or reimbursement, please.

Many times I have experienced a delay in acceleration or where it fails to accelerate relative to the pedal position and will then suddenly aggressively accelerate. This has resulted in me almost being hit in traffic due to the lack of power output leaving me panicked as vehicles barrel down on me while I’m stuck waiting for the truck to get the signal to accelerate. The issue has begun to occur more often but is spontaneous when it occurs leaving me with huge trust issues with the vehicle not knowing when it will decide if it wants to output power or not. It occurs most often after the vehicle has been sitting unused, like first thing in the morning or after work when it has been sitting for hours, and most often when executing a turn from either a slow roll or a stop. Meaning if I’m on a side street and wish to pull out into traffic, it will just decide not to accelerate and leave me sitting in the road as vehicles approach scaring me into pumping the throttle or attempting to push it to the floor in the hopes it gets the signal and will accelerate to get me out of harms way. It’s a huge issue and I’m worried it will result in an accident. I’ve also seen many other are experiencing the problem. I have an appointment with my local ford dealership to have it looked at but I’m worried they won’t be able to replicate the issue and will leave me with no answers or help.

The contact owns a 2021 Ford F-150. The contact stated while driving 60 MPH, the transmission independently shifted to neutral, and the vehicle decelerated. In addition, the power train failure warning light illuminated. The contact stated that within several seconds, the vehicle returned to normal speed, and the power train failure warning light was no longer illuminated. The contact stated that the failure occurred while driving on a major highway. The vehicle was taken to the dealer where it was diagnosed with an external transmission failure. The contact was informed that the transmission needed to be replaced, and the software needed an update. The vehicle was not repaired. The contact was informed of an unknown recall however, the VIN was not included in the recall. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 79,000.

Multitude of transmission problems, Have smelt clutches in the transmission burning very strongly twice now. Hard shifting up shifting and downshifting. Slamming into gear almost locking up the back wheels. Has failed to move with transmission binding up putting it in reverse. Multiple slippages and different gears. After the truck is stopped at a light for 10 to 30 seconds there will be a hard clacking sound and the transmission that can be felt in the floor. Extreme hesitation almost causing an accident pulling out into traffic. Check engine light one time for faulty Park solenoid and the vehicle would not come out of park. Disconnected and reconnected the batteries. Cleared the code and finally got it to come out of park. The code cleared after 3 days. Was working with the dealership over the phone remotely at the time with it. They said it disappeared and they didn't know why. Transmission has been flushed at 50,000 miles by ford dealership. Ford dealership has done a reprogramming on it so far. Transmission still had problems had a Ford take a ride with me. He stated that it need to be rebuilt or replaced. Ford dealer is dragging their feet to do anything. I have many text messages into the service writer updating him of new problems and current problems as they occur. They are fully well aware of the issues. I drive a lot like 6,000 miles a month and I think they just don't want me put miles on their loaner vehicles for their faulty transmission problems. I purchased the vehicle in February 2024 problems have been occurring since purchase.