2017 Lincoln Navigator

NHTSA Complaint — 2017 Lincoln Navigator Output Speed Sensor / Lead Frame Vehicle: 2017 Lincoln Navigator 4WD Transmission: 6R80 6-speed automatic Component: Transmission — Output Shaft Speed Sensor / Internal Lead Frame Current Mileage: 219,000 Complaint description: I am filing this complaint regarding a recurring transmission-related problem with my 2017 Lincoln Navigator. The vehicle has experienced intermittent loss of the vehicle speed signal, and the speedometer will suddenly drop to zero while driving. The vehicle has also experienced intermittent wrench/limp-mode symptoms and abnormal transmission behavior. The vehicle was diagnosed with diagnostic trouble code P0722, Output Shaft Speed Sensor “A” No Signal. The output speed sensor is incorporated into the transmission’s internal lead-frame assembly rather than being a simple externally accessible sensor. This problem is concerning because the loss of the output speed signal can affect transmission operation, shifting, vehicle speed information, and potentially cause the vehicle to enter a failsafe/limp mode while driving. The problem has occurred while driving and can create a safety concern, particularly when traveling at highway speeds. I am concerned that the internal lead-frame/output-speed-sensor design may be prone to failure and that owners may be required to perform a significant transmission repair to replace a sensor that can cause a loss of vehicle speed information and transmission control. I am requesting that NHTSA investigate complaints involving the 6R80 transmission output speed sensor/lead-frame assembly in 2017 Lincoln Navigators and other Ford/Lincoln vehicles using this transmission to determine whether there is a safety-related defect or pattern of premature failure. I am submitting this complaint so that the problem is documented and considered as part of any investigation or safety action involving this component.

The contact owned a 2017 Lincoln Navigator. The contact stated that while traveling at 40 MPH, the vehicle struck the front passenger side of another vehicle that made an illegal U-turn at a higher rate of speed. The vehicle spun out and came to a stop after crashing into a bus occupied by children. No air bags deployed, and the contact believed the air bags should have deployed. The vehicle was towed to a tow yard. A police report was filed. The vehicle was destroyed. Two individuals were injured. The contact was driving and sustained injuries to the head, neck, shoulders, knees, legs, chest, right elbow, right arm, and internal bruising from the seat belt. The other person sustained unknown injuries. Medical attention was required for the injuries sustained. The dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was 140,000.

The contact owns a 2017 Lincoln Navigator. The contact stated that upon start of the vehicle, both the "Hill Start" and "Service AdvanceTrac" warning messages appeared on the instrument panel. The steering wheel had become stiff as a result of the failure and the contact used excessive force to steer the vehicle home. The contact initially assumed the failure was related to battery; however, after replacing the vehicle's battery, the failure persisted. The contact then called the dealer who informed him the failure was likely related to the steering rack. The manufacturer was not notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 162,000.

The vehicle has a severe brake fluid leak. There is a recall for the issue. I called the local Lincoln dealership Ford Mill Lincoln SC and they said there was nothing they could do. I explained to them that there was a safety recall. They refused to fix the vehicle under the recall. The car is very unsafe to drive and the manufacturer is not offering any assistance to fix the defect.

The contact owns a 2017 Lincoln Navigator. The contact previously received notification of NHTSA Campaign Number: 25V572000 (Back Over Prevention); however, the part to do the recall repair was not yet available, and the rearview camera intermittently displayed a blank or distorted image. The contact stated that when the part for the recall repair became available, the vehicle was taken to the dealer; however, after the dealer inspected the rearview camera, no failure was found. The rearview camera was not replaced. The dealer informed the contact that the rearview camera would be replaced as necessary. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 87,000.

problem is when you go to check the oil do you think you’re gonna find a low oil situation and what happens is the oil is actually overfilled however it’s not overfilled because you put too much oil in it. It’s overfilled because gasoline is leaking into the oil pan. So the oil is diluted and it actually doesn’t even seem like oil. It seems like dirty gas. That’s how much gas gets into it. Supposedly this is a known issue after searching it on the Internet, this is known, and it happens with this making my vehicle. The manufacturer should be responsible for fixing it. Supposedly the fix is either changing the fuel pump or fixing the valves or maybe a combination of both either way the consumer should not be stuck with this. This is a design error or defect. It says there’s also a problem with the gasket I feel I should not have to pay to get this fixed. This is a designed defect and they sold the car this way knowing afterwards that there’s an issue with it. My crank case is filled with gas when I pull the dipstick out. It drips like water. If you look at the full line on the dipstick it’s about 1 inch over the full line and the oil is virtually useless. The car also runs an idles rough and it’s constantly idling up and idling down and that’s probably because the gas is leaking into the engine. Please look into this and I appreciate anything you can do. This is definitely a Ford issue. They should be responsible there’s nothing I did to this particles this problem. I maintained my vehicles. I did everything I was supposed to do and this problem arose because it’s defect in the car quite frankly if I would’ve known it, there’s no way I would’ve bought it. I feel the public should know about this and I feel that they should be responsible to fix it. Thank you very much. I appreciate all your help in time. Please feel free to contact me if you have any questions thank you [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2017 Lincoln Navigator. The contact received notification of NHTSA Campaign Number: 25V572000 (Back Over Prevention); however, the part to do the recall repair was not yet available. The contact stated that the rearview camera image was distorted while reversing. The local dealer was contacted. The vehicle was not diagnosed or 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 failure. The failure mileage was approximately 40,000.

The throttle body went bad while driving 55mph and 35mph. Over 5 times I could not accelerate while stepping on the gas peddle and it would stall out trying to get it to ford on the same road for 5 miles. I had to quickly stop and turn it back on with my flashers going less than 35mp on a 55mph road. This happened at first going around a corner you can not stop on due to no visual on the other side which would cause a wreck stopping there. The problem was confirmed by Coughlin of Heath Ford and they were the ones that fixed it. There was no warning of the throttle body going bad until it happened at that moment and repeated to happen as I tried to get it to ford on the same road it was happening on into town. The check engine light did come on but it it would go on and off during the situation until it finally stayed on after a few minutes. There is a photo of the report attached to this document.

The contact owns a 2017 Lincoln Navigator. The contact stated that while inspecting the vehicle, it was discovered that there was an unknown fluid leaking from the rear of the vehicle. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The contact later received notification of NHTSA Campaign Number: 25V236000 (SERVICE BRAKES, HYDRAULIC). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 58,000.

Back-up camera quit working about 3 months ago, 2025. There is a recall for the 2018 cameras but this is a 2017. Please include the 2017 year in the recall list. This issue poses a safety hazard when backing. Driver can not see what is behind the vehicle or if it is in a dangerous position. Since this is a SUV sized car the side mirrors are not adequate to safely see what is behind the car when backing. We have had a few close calls but no injuries yet.

Recall number 25S08 for side mirror lighting, the disconnect remedy is unacceptable. These side lights provide safety measures for exiting and entering the vehicle. As older adults seeing the fold out step in the dark is necessary. If these lights are disconnected due to the recommended remedy from Ford then there is a fall hazard for owners who don't see well at night. The steps could be missed resulting in a fall. WE request the lights be replaced or repaired NOT disconnected. Recall documents mailed from FORD/Lincoln to my address March and June 2025

the rearview camera does not always come on when the vehicle is put in reverse. It appears to be the same issue as the newer Lincoln navigators and other fords for which a recall was just issued. The recall number for Ford is 25S49. The recall needs to include the 2017 navigator as well. You can not see behind the vehicle when the camera malfunctions The vehicle has not been to the dealer for the issue yet when the camera does not work there is a error message