2021 Ford Explorer acceleration problems

Filed Sep 1, 2026 · Acceleration, Engine · CA

I am reporting ongoing safety-related powertrain and drivability concerns involving my 2021 Ford Explorer ST in Fresno, California. The vehicle has experienced recurring transmission and driveline problems, including harsh or delayed shifting, hesitation, abrupt gear engagement, jerking/surging, and inconsistent acceleration. These symptoms are similar to transmission concerns documented by Ford for 2021 Explorers equipped with the 10R60 automatic transmission, including harsh/delayed engagement or shifting and potential issues involving transmission controls, solenoid strategy, and main-control valves. The vehicle has also required CV axle/half-shaft repairs, raising additional concerns regarding driveline reliability. I am also concerned about the known rear differential/rear axle mounting-bolt defect affecting 2021 Explorers. Ford has documented that the rear axle mounting bolt may fracture, allowing the axle housing to move. This can result in severe vibration/noise and possible driveshaft or half-shaft disconnection, potentially causing loss of propulsion. The defect may also contribute to a vehicle rollaway hazard. These combined transmission, CV axle, and rear differential concerns create a significant safety risk. Delayed acceleration or engagement can prevent the vehicle from responding as expected when entering intersections, making left turns, merging onto highways, changing lanes, or avoiding hazards. Abrupt engagement after hesitation can cause unexpected vehicle movement. Failure of a CV axle, half-shaft, or rear axle/differential mounting component could cause sudden loss of propulsion or vehicle control. I am requesting that the federal safety agency investigate whether these recurring transmission and driveline problems represent a broader safety defect involving the 10R60 transmission, CV axles/half-shafts, rear differential mounting system, or related powertrain components.

Filed Jun 7, 2026 · Acceleration, Engine · CT

While driving at highway speeds, the vehicle displays a "Drive Train Malfunction" warning message and the traction control warning light illuminates. Shortly after the warning appears, the vehicle loses power and may enter a reduced-power mode or stall, creating a serious safety hazard in traffic. This has occurred while traveling on the highway, forcing sudden deceleration and creating the risk of being struck by other vehicles. The check engine light is illuminated, and diagnostic code P0A1E is present. The problem is intermittent and unpredictable, making it difficult to determine when the next failure will occur. The vehicle has been taken to Ford for diagnosis multiple times, and significant money has been spent attempting to repair the issue. Despite these efforts, the root cause has not been identified and the problem continues to occur. This defect affects the drivetrain system and impacts the safe operation of the vehicle. The sudden loss of power on the highway places the driver, passengers, and surrounding motorists at risk. Based on discussions with other owners, this appears to be a common issue affecting Ford Explorer Police Interceptor Utility vehicles and warrants investigation by the federal safety agency.

Filed Mar 25, 2026 · Acceleration, Driver assistance · MI

Everyday I get alerts saying the power train system, then I can’t use my cruise control, and many other alerts pop up

Filed Jul 15, 2025 · Acceleration, Fuel system · MI

my explorer has a 10 speed transmission, and its REALLY heavy on shifting like it is missing shifts or slipping, it will shoot up in rpms to the 7-8k mark and jerk forward, this will happen every few minutes when varying speed, driving through residential areas or normal trafficways not including the highway, however on the highway it has a tendency to feel as if it loses power and regains it, dropping rpms and shooting back up to 4-5k rpm, and dropping back down to around 2k. today i had the incident where the car jerked hard after a shift, gave me prompts on the dash about seeing the manual, and that drive modes are not available. this has happened in the past month before multiple times, however this time i lost all power to acceleration going down the road, ended up just coasting to a stop on a road that speed limit is 55 mph. this made me panic, because i could have possibly been rear ended, or in any other case could have been hit if my car would not have properly been able to accelerate. the car has had similar problems reported from previous owners and they have been taken into a dealership for repairs of which did not fix the problem or the problem is reoccurring. there are no warning lamps prior to the jerkiness of shifting and loss of acceleration because of it. it will jerk a handful of times and eventually give me the "see manual" prompt after the initial problem was noticed, i decided to look online for answers as to what was wrong and it seems like this is a reoccurring problem with vehicles similar to mine. Hopefully it hasnt caused and injuries, but it definitely has the possibility to from what i have experienced.

Filed Apr 6, 2025 · Acceleration · CA

2021 Ford Exploer the RPM SHOOTS UP AND DOES NOT GO DOWN. I HAVE TO PULL OVER AND SHUT VEHICLE OFF TO RESET.. This has been replaced in 2023 and I am having problems with same issue. VEHICLE WILL NOT PICK UP SPEED UPON Accelerating and when it finally picks up the transmission with jerk really hard. This happens 2x a week. At times I have to pull over because there is no speed when pressing on the gas and need to shut off my car to reset it. When pressing on the gas pedal it Will sped up and take off with light Touch from gas pedal .

Filed Jun 25, 2024 · Acceleration, Suspension · TX

Ford Explorer 2021 recall stems from a defective rear axle horizontal mounting bolt. Ford Motor Company has promised to cover the cost of replacing the subframe bushing and the rear axle bolt and repairing any resultant damage. The dealer, Payne Ford Weslaco, the Tech broke a tool to fix and Ford has failed to replace said tool.

Filed Mar 23, 2024 · Acceleration, Fuel system · NY

The vehicle looses power occasionally. When the accelerator is pressed it can take a second or 2 to start moving again. It happens when turning, changing lanes or going straight. I could be pulling into traffic and it will stop moving, even if the gas pedal is pressed down all the way. It will happen in every drive mode and when the traction control is off. The only time it hasn't happened yet is when I turn off the AdvaneTrac stability control. I have to hold down the traction control button for 5 seconds every time I start the vehicle. The dealer said they couldn't find the problem. The associate said it's a common issue with the Explorer's. It is very dangerous.

Filed Jan 1, 2024 · Acceleration, Driver assistance · VA

With the Ford Intelli-Cruise enabled in settings, the vehicle automatically adjust the speed while using the cruise control. The vehicle will randomly, quickly, accellerate to a extreme new speed limit it thinks it has detected. For instance, several times while travelling on I-81, with a 70mph speed limit, the vehicle will think the new speed limit is suddenly 85mph and quickly accelerate to that speed. I have attached a photo of the dash displaying that setting the car set by itself. On the flip side, once on I-81, it thought the speed limit was 35mph and quickly slammed on the brakes to slow to 35mph from 70mph. Both are quickly overridden by the driver tapping the brake and cancelling the cruise control. However, both could lead to hazards to other drivers potentially resulting in a wreck, especially the sudden slow to 35mph on the interestate. The dealership says "Yea, it happens and people complain". I have no idea why the speed changes, there are no road signs or other indications to even cause the system to re-evaluate its settings. Ford says Intelli-Cruise uses road signage and other ways to also determine speed (whatever that means). This is a safety issue that needs to be remedied by Ford. However, without the federal safety agency enforcement, they don't seem interested in resolution. (This website isn't allowing me to upload the .jpg file, upload button disappears when I click it)

Filed Sep 16, 2023 · Acceleration, Transmission · CA

While driving on a freeway on Sep 15th 2023, wrench light showed up and immediately vehicle speed dropped from 65 to 30mph. This is second time this issue has happened and luckily my family survived accidents. First incident occured on Aug 13th 2023, after which i towed my vehicle to dealership. They repaired and said its safe to drive now. But issue is recurring. Please help me on this as I am reporting this issue second time on the federal safety agency. I reported first incident also which happened on Aug 13 ,2023

Filed Jun 26, 2023 · Acceleration · VA

I have filled claims with Ford Motor Company as well as the BBB regarding my vehicle and not shifting and lunging into gear. Ford has replaced my transmission 3 times and denied my claim for a buy back under the Lemon Law and Magnuson Moss Warranty claim. Now I am reading Ford is recalling many 2021 Ford Explorers for the same issue that I had reported struggled and continue to struggle with for over a year now. Is there anything the federal safety agency can do to require Ford to purchase my vehicle back for at least what I paid for? I can provide claim numbers, if needed.