2020 Lincoln Aviator transmission problems

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact stated that on several occasions while shifted to reverse(R), and occasionally while in drive(D), the vehicle jerked violently and did not stop jerking until the brake pedal was depressed. The vehicle was taken to a dealer where it was diagnosed and determined that the rear differential needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA complaint #11757029 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact received notification of NHTSA Campaign Number: 26V402000 (Power Train); however, the part to do the recall repair was not yet available. The contact stated that while driving 70 MPH, the vehicle shutoff while coming to a complete stop, with an abnormally rough grinding sound coming from the vehicle. The vehicle was restarted after several attempts but was undrivable. The vehicle was towed to a local dealer where it was diagnosed with transmission failure. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was 84,464.

NHTSA complaint #11756591 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact received notification of NHTSA Campaign Number: 26V402000 (Power Train). The contact stated that while stopped at a stop sign, the transmission unexpectedly shifted into park(P), and the gear shifter could not be shifted out of park(P). The vehicle was towed to a dealer to be diagnosed. The dealer determined that the transmission needed to be replaced. The vehicle was not repaired, and the part to do the recall repair was not yet available. The manufacturer was notified of the failure. The failure mileage was 78,000.

NHTSA complaint #11756255 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact received notification of NHTSA Campaign Number: 26V402000 (Power Train); however, the part to do the recall repair was not yet available. Upon taking the vehicle to a collision repair shop, the contact was informed that the gear shifter had failed to shift out of park(P). The vehicle was taken to the dealer, where it was determined that the failure was associated with the recall. The contact was advised that the vehicle would be repaired at the owner's expense because the part for the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure, but no assistance was provided. The failure mileage was approximately 126,000.

NHTSA complaint #11753068 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact stated that after restarting the vehicle, the transmission was shifted to drive (D), but the vehicle failed to move while the accelerator pedal was depressed, and the engine was revving. The messages "Park Brake Malfunction Service", "System Braking Issue", "Service Advancetrac", "Park Malfunction Service Now", and "Check Brake System" were displayed. Additionally, the vehicle previously hesitated to accelerate while driving. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 89,635.

NHTSA complaint #11749623 — an unverified report by a vehicle owner.

POWER TRAIN

while moving in reverse, the vehicle automatic breaking system engages on and off giving a jerking movement of the car and makes you feel like you hit something. Once the vehicle is placed into Drive mode the same thing happens with the breaking system. because of this the check vehicle lights come on and gives a "Hill start assist warning" also "Pre-collision Assist Not Available". Also all wheel drive mode is not available and the drive mode selection no longer works. Took the car to the Lincoln dealership and they said it is a known problem and that there is a TSB out on this issue. The vehicle has only 66,000 miles on it and it is out of warranty. How can there not be a recall on this issue? They said they need to replace two shafts in the front end costing $5,000.

NHTSA complaint #11729043 — an unverified report by a vehicle owner.

POWER TRAIN

replaced 2 valve bodies, and now the CDF has an open statement bulletin on it, and I have to do an entire transmission replacement

NHTSA complaint #11723913 — an unverified report by a vehicle owner.

POWER TRAIN

On January 29, 2026, at approximately 4:00 PM, the vehicle experienced unintended movement while in PARK and powered off. The vehicle had been placed in Park, the engine was turned off, and the driver exited. Shortly afterward, the vehicle rolled unexpectedly while unattended. The vehicle remained parked and was not driven due to safety concerns. Wheel blocks were placed behind the tires until the scheduled dealer appointment on February 4, 2026. The dealer inspected the vehicle and was able to replicate the condition. The failure was diagnosed as a malfunctioning parking pawl solenoid within the transmission system. The dealer confirmed the vehicle could be physically rolled after being placed in Park and powered off. This condition presents a serious safety risk, including risk of injury or death if a person, child, or object were behind the vehicle. There were no prior warning messages or alerts before the incident. The vehicle is available for inspection upon request.

NHTSA complaint #11717852 — an unverified report by a vehicle owner.

POWER TRAIN

Transmission slipped and lost all power

NHTSA complaint #11710228 — an unverified report by a vehicle owner.

POWER TRAIN

Upon starting the vehicle around 7p on Friday, 10/31/25, the following errors flooded the screen: Hill start assist not available Service advancetrac 4WD Malfunction service required Pre-collision assist not available Rear sense breaking not available Additionally, cruise control could not be turned on and utilized. There was no incident to trigger these. The car had been sitting parked and off for ~2 hours prior to being turned on. No issues or errors prior to this date and time of turning on the vehicle. The warnings detailed describe how our safety was put at risk. All of these safety and basic features no longer functioned and our children’s safety was put at risk due to this electronic issue causing major functionality breaks/discontinuation of functions. Reproduced and confirmed by Capital Mazda of Cary (NC). Quoted to repair at our expense and “remove and throw out the electronic and replace with a manual.” Furthermore we’ve been informed verbally by our service associate that Ford (parent company) is aware of this safety issue. A TSB was located with a summer 2023 date. Lincoln customer service has stated this would’ve been covered under warranted “if it had come up while under warranty.” This dealership is the only place that has reviewed the vehicle and conditions and provided the explanation and information.

NHTSA complaint #11697895 — an unverified report by a vehicle owner.

POWER TRAIN

Axle shaft Seal no warning besides loud grinding noise. Electrical issues- causing speakers to not work and the lights coming on and going off. Then it causing the crash detection to not have sound.

NHTSA complaint #11686041 — an unverified report by a vehicle owner.

POWER TRAIN

FIRST THE ENGINE BROKE (CRITICAL DAMAGE) WAS REPLACED SECOND THE TURBOS WERE JAMMED, WEREREPLACED THIRD THE THROTTLE WAS INOPERATIVE STIL UNATTENDED FOURTH THE TRANSMISSION AILED STIL UNATTENDED

NHTSA complaint #11632947 — an unverified report by a vehicle owner.

POWER TRAIN

Driving down the road and all of a sudden multiple warnings come on the dash. They include : Service AvanceTrac, pre collision assist not available, 4WD fault service required, and Hill start assist not available. These warning all clear upon restart but will come back at random times. I joined a forum for this vehicle and a lot of owners are reporting this issue.

NHTSA complaint #11591999 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact stated while attempting to accelerate, the vehicle experienced unintended acceleration and lurched forward. The service vehicle wrench icon was displayed. The vehicle then started to experience reduced engine power. The vehicle was towed to the local dealer who diagnosed the vehicle and determined that the front axle actuator and intermediate shaft was faulty and needed to be replaced. The vehicle was repaired but the failure persisted. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 82,000.

NHTSA complaint #11585183 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2020 Lincoln Aviator. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to respond. The contact stated that while depressing the accelerator pedal, the vehicle hesitated while responding however, the transmission failed to shift out of first gear. The contact stated that the failure had occurred three times within the past two months. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 36,500.

NHTSA complaint #11558331 — an unverified report by a vehicle owner.

POWER TRAIN

Without notice the transmission would downshift and lunge forward. So hard that it felt like we were hit from behind. When trying to accelerate it would stay in gear longer than normal and clunk forward again. Smelled burning through the vents. Also when accelerating it would slip out of gear and the rpms would increase without me being able to move and then shift hard into gear again. We were on the highway at highway speed in traffic and without warning the vehicle wouldn't accelerate and were inches from being rear ended by the tractor trailer behind me. I was fearful for my life and the life of my family in the vehicle. Due to all of the issues with the vehicle it is now causing me financial hardship and undue stress and I am unable to perform my normal job duties due to this issue. The vehicle has been inspected by the dealer and confirmed that this component is bad and needs to be replaced. The were no warning lights when this happened.

NHTSA complaint #11538750 — an unverified report by a vehicle owner.

POWER TRAIN

While traveling on the freeway the transmission slipped out of gear. I appreciate it. I proceeded to pump the fuel, It caught after about five seconds and took off. I was barely able to hit the brakes before hitting the car in front of me. We were on our way to a family vacation to Southern California. We live in Fresno, California. This is the second time this happened, Both times were on longer trips after about 2 to 3 hours of driving. My wife and kids were with me this time as we barely avoided a collision. This happened one time before when I was driving to San Francisco. After that incident. I immediately took it into the dealership (Lithia Ford) where I had them documented the issue and try to repair it. At that time, they were unable to recreate the issue.

NHTSA complaint #11538273 — an unverified report by a vehicle owner.

POWER TRAIN

My warning light stating a AWD malfunction has occurred has gone off 4 times, along with warnings for malfunctions in precollision assist and hill climb assist and the light has come on 4 times for each of these. When driving these lights come on and when the AWD malfunction light comes on the car drives very loose and I do not seem to have firm control over the steering and i feel like the car wants to swerve and I do not feel safe driving .

NHTSA complaint #11523476 — an unverified report by a vehicle owner.

POWER TRAIN

Vehicle shifted into neutral while driving. Had to stop the vehicle in the median to put it back in drive.

NHTSA complaint #11436553 — an unverified report by a vehicle owner.

POWER TRAIN

MY VEHICLE HAS 4960 MILES AND THE TRANSMISSION STARTED TO SLOW DOWN AS IF I WAS DRIVING A STICK SHIFT CAR, THEN 2 OR 3 DAYS LATER BEGAN TO KICK AND LOSE POWER WHEN INCREASING SPEED AFTER A STOP SIGN. DEALER DIAGNOSED AN INTERNAL FAILURE ON THE TRANSMISSION AND IT NEEDS TO BE REPLACED. A COUPLE OF TIMES IN THE MORNING AFTER STARTING THE VEHICLE, WHEN PUTTING THE REVERSE GEAR I HAD MY FOOT ON THE BRAKE BUT THE CAR STILL MOVED AND THE BRAKES WERE VERY STIFF, I HAD TO RELEASE THE BRAKE AND APPLY IT AGAIN IN ORDER TO STOP THE CAR FROM MOVING. THE SENSORS ON THE REAR BRAKE SUPPORT ARE EXTREMELY SENSITIVE. THE CAR DETECTS A SMALL CRACK ON MY DRIVEWAY AND STOPS ABRUPTLY CAUSING MY HEAD TO BUMP TWICE ON THE HEADREST, THE DEALER SAID IT WAS NORMAL, NO DEFECT FOUND. THE WINDSHIELD FLUID I THOUGHT IT WAS NORMAL IN THIS CAR TO THROW A VERY SMALL AMOUNT OF LIQUID COMPARED TO MY OTHER LINCOLN MKZ, BUT READING THE COMPLAINTS FROM OTHER CUSTOMERS I REALIZED THAT IT'S NOT NORMAL.

NHTSA complaint #11331333 — an unverified report by a vehicle owner.