Lincoln Navigator transmission failure problems

Filed Nov 4, 2026 · Transmission · CA

The transmission control assembly and park valve circuit failed, causing the vehicle to unexpectedly lose drive power and experience a momentary neutral-out condition while moving in traffic, which almost caused a rear-end collision. The vehicle also exhibits harsh gear engagement and severe transmission fluid leaks. The authorized Lincoln dealership inspected the vehicle and stated that the transmission cannot be repaired and must be completely replaced due to the severity of the internal hardware failure (CDF cylinder and park system defect). However, because the dealership refused to accept any responsibility for this defect—even failing to address the active fluid leak—I had to take the vehicle back from them so I can show it to independent transmission shops for secondary inspections. Furthermore, I previously took the vehicle to the dealership back in January for this exact same transmission issue. At that time, before the official safety recall was issued, the dealership performed a repair. However, that repair completely failed, the exact same symptoms and codes have returned, and now the dealer is telling me the entire transmission must be replaced. Both Lincoln Corporate and the dealership refuse to help, stating they only check the vehicle strictly by its VIN. This defect completely matches Ford/Lincoln Safety Recall 26S48 (the federal safety agency Campaign 26V402) and codes DTC P07E6 and P2237, but the manufacturer omitted my VIN despite it having the exact same failure and requiring a total transmission replacement.

Filed Oct 8, 2026 · Driver assistance, Transmission · FL

How do you have a problem with a Parking issue transmission or automatically going into parking on neutral when I was driving it started like three years ago with a little knocking sound every time I used to shift The dealer always told me that the hard shifting was something normal every time I wanna ask him to check and they did nothing. They just say it was normal now my transmission is failing and I don’t wanna be responsible because that same knock intensify and now it knocks and it breaks at the same time doing 25 to 30 miles an hour they asking for $10,000 for a new transmission which is their problem. The mechanic told me he was a mechanical failure inside the transmission. Everything else is good.

Filed Jul 9, 2026 · Fuel system, Transmission · MA

I purchased this 2021 Lincoln Navigator L Black Label used on March 22, 2024 with approximately 42,726mi. Beginning around Sept. 2025 (approximately 70,000-75,000 miles), the vehicle developed intermittent transmission failures that have progressively worsened. This is our primary family vehicle and routinely transports our three young children. The transmission hesitates, slips, skips gears, bangs into gear, and frequently delays engagement before suddenly surging forward. Engine RPM increases without corresponding acceleration. Occupants are abruptly thrown forward and backward during normal driving. Several times each month, a yellow wrench/powertrain warning appears instructing the driver to see the owner’s manual. When this occurs, the vehicle loses normal acceleration and throttle response becomes significantly delayed. The defect is intermittent and unpredictable. The condition creates dangerous situations when merging, entering intersections, accelerating from traffic lights, and in stop-and-go traffic. On one occasion, after stopping on an incline, the vehicle would not accelerate and effectively became disabled in traffic. We activated our hazard flashers while vehicles drove around us. The hesitation followed by sudden engagement also creates a rear-end collision risk. I first brought the vehicle to an independent repair shop, but the concern was dismissed. On 6/22/2026, Herb Chambers Lincoln of Norwood road tested the vehicle, confirmed the complaint, and documented that the “transmission is skipping and banging into gears” and recommended complete transmission replacement. The estimated repair cost was approximately $12,560. The vehicle remains unsafe to drive due to repeated loss of propulsion, delayed acceleration, violent shifting, and dealer-confirmed transmission failure. I respectfully request the federal safety agency investigate whether this represents a broader safety defect affecting Ford/Lincoln vehicles equipped with the 10-speed automatic transmission.

Filed Jun 29, 2026 · Transmission · KS

Vehicle downshifted while driving. Speedometer stopped working. Stopped the vehicle and the transmission failed to shift out of gear upon acceleration. Cluster showed wrench and engine light. Turned the vehicle off then restarted and the cluster cleared and operation returned to normal. A week later, the same incident. Seems to be the problem that expired in the 2023 customer satisfaction campaign; however, the vehicle is out of that window.

Filed May 4, 2026 · Transmission · OR

2020 Lincoln Navigator, 10R80 transmission. Following two full transmission replacements, torque converter replacement, valve body replacement, and transmission pump repair, vehicle continues to exhibit hesitation under acceleration, harsh and delayed shifting, loss of power, shaking beginning at approximately 28-30 mph felt through the floorboard, and abnormal fuel consumption. Independent tire shop ruled out tires as cause. Safety Recall O1 for PCM reprogramming remains incomplete on this VIN despite multiple service visits. Vehicle has been at dealership since early-March with no confirmed repair date or Ford engineer visit scheduled

Filed Apr 28, 2026 · Transmission · TX

The vehicle is a 2019 Lincoln Navigator. The component that failed is the transmission. The vehicle experienced a sudden transmission failure resulting in loss of normal drivability. The issue is currently available for inspection at the repair facility upon request. This failure created a safety concern due to loss of power, hesitation, and unreliable shifting, which can increase the risk of collision, particularly in traffic or during acceleration. The problem has been confirmed by the dealership and independent repair facilities. Multiple repair professionals indicated that this failure is consistent with a known issue addressed by a Ford Technical Service Bulletin (TSB), suggesting this is not an isolated incident. The vehicle has been inspected by the repair facility. The manufacturer has not directly inspected the vehicle to my knowledge. There were no significant prior warning indicators that would suggest imminent failure. Any symptoms prior to failure were minimal or not clearly indicative of a major transmission issue. Based on information from repair facilities, this appears to be a known defect pattern rather than normal wear or maintenance-related failure. The use of a TSB instead of a recall raises concerns that a broader safety-related defect may not be adequately addressed. This failure occurred after proper maintenance and outside any initial waiting period for warranty coverage. The issue appears systemic and warrants further investigation.

Filed Apr 25, 2026 · Transmission · NY

On [XXX] at or about [XXX]., I was traveling on the highway while going up hill to pass a slow moving vehicle, in the passing lane, suddenly lost total acceleration in which a wrench light appeared as if the transmission disengaged. I was able to coast to the into the driving lane, to get to the shoulder of the road in which the transmission engaged back at about 10mph. I was able to continue slowly, to my destination but at lower speeds the vehicle was shaking and shifting hard. I had just purchased this vehicle, used, only having same for about a month. I had to have the vehicle towed back to the place where I purchase same, due to transmission failure on 04/25/26. To A Better Way Wholesale Auto, 49 Raytkwich Road, Naugatuck CT 06770 I waiting for a service report in what needs to be repaired or replaced. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 8, 2026 · Transmission · IL

1. transmission shifts hard and/or seems to shift to neutral and losing forward propulsion 2. or loud clunk followed by shuddering and no control 3. no control means unsafe driving conditions particularly if closer to other vehicles 4. dealer quoted some mumbo/jumbo about jumping into park 5. dealer quoted $10,000 figure for new transmission 6. after clunk event and pulling over wrench light came up with reference to differential 7. super hard shifting or no shift life-threatening lunging and hesitation is unacceptable0

Filed Feb 10, 2026 · Acceleration, Engine · TX

While driving, the vehicle repeatedly hesitated during gear changes, lost power, and then abruptly jerked back into gear. This occurred intermittently for over a month without any warning messages, creating unpredictable and unsafe driving conditions. As the issue worsened, the vehicle began losing power more frequently. The most serious event occurred at highway speed, where the vehicle suddenly lost propulsion in the middle of active traffic, nearly causing a stall. This created an immediate safety hazard for myself and surrounding drivers. After several seconds, the vehicle violently re-engaged into gear and surged forward. Only at this point did the vehicle display a warning: “Powertrain Malfunction / Reduced Power.” I scanned the vehicle and retrieved DTC P0734 – Gear 4 Incorrect Ratio, a code associated with internal transmission faults. A dealership inspected the vehicle and reported that the CDF drum had failed. They stated they could not guarantee that replacing the drum would resolve all issues and provided two estimates: $5,600 for a partial internal repair/$8,700 for full transmission replacement. The 10R80 transmission has a documented history of failures, including harsh shifting, slipping, unexpected gear disengagement, and internal component defects. These issues are addressed in multiple Ford Technical Service Bulletins involving P0734, harsh/failed shifts, and failures related to the CDF clutch cylinder/drum. Many vehicles of the same make and model are covered under related recalls or service actions for similar problems; however, my VIN is not included, and Lincoln declined to honor the existing recall. This defect presents a serious safety risk due to: Sudden loss of power while driving, including at highway speeds, Unpredictable re-engagement and violent surging, Loss of propulsion without warning, leading to near-stall conditions. This powertrain malfunction is a known, unsafe, repeat issue among these vehicles equipped w/this transmission.

Filed Nov 12, 2025 · Transmission · 72,000 miles · AZ

The contact owns a 2018 Lincoln Navigator. The contact received notifications of the federal safety agency Campaign Numbers: 23V598000 (BACK OVER PREVENTION) and 25E070000 (POWER TRAIN); however, the part to do the recall repair on the Power Train was not yet available. The contact stated while driving 60 MPH, the steering wheel vibrated, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact exited the freeway and when the vehicle stopped at a traffic light the vehicle stalled. After several attempts the vehicle failed to restart. The transmission warning light and the service indicator light were illuminated. The vehicle was towed to an independent mechanic who diagnosed that the transmission had failed. The transmission was replaced. After three weeks, the failure reoccurred. The transmission warning light and the service indicator light were illuminated. The vehicle was taken back to the independent mechanic who diagnosed that the spark plugs, and transmission had failed. The spark plugs were replaced and some unknown part on the transmission was repaired. The contact stated that the failure persisted. The vehicle was taken to the independent mechanic who diagnosed that the transmission needed to be replaced. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure milage was approximately 72,000.