2018 Ford F-150: water leaks into the cabin

Filed Dec 30, 2025 · Airbags, Driver assistance · MO

Taillight leaks water causing the blindspot sensor to burn up. Once the sensor is burned up the airbags, power door locks, power windows, heat/defrost, and the radio don't work. This is a known problem and Ford has no fix for it. It is several weeks wait to get it into Ford and costs several thousand dollars for a known problem that they are not addressing. Having no heat or defrosters in the winter make this a safety issue for everyone on the road not just the operator. Door locks and windows not working is a safety issue for the vehicle passengers.

Filed Dec 1, 2025 · GA

Problem Description: The rear sliding window track on my Ford F-150 has detached / become loose, causing the window to rattle, misalign, and leak water into the cabin. While there is a TSB (SSM 50337) for window rattling, my truck’s issue is more severe, creating a potential safety hazard if the window detaches while driving or allows water damage to electrical components. Additional Info: •Occurs under normal driving conditions •Photos/video available for review •This issue may affect other F-150s with sliding rear windows Desired Outcome: Investigation and determination if this defect warrants a recall or service bulletin to prevent safety hazards.

Filed Aug 12, 2024 · Visibility · 79,000 miles · GA

The contact owns a 2018 Ford F-150. The contact stated that while driving in a rainstorm, water from the sunroof leaked into the cabin of the vehicle. The vehicle was taken to the local dealer who diagnosed that the sunroof needed to be replaced to prevent further water leaks. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 79,000.

Filed Jun 11, 2023 · Body, Electrical · TX

The twin panel sunroof has water leaks threw the factory installed rivets on the rail causing electrical shortages and which can lead to a fire hazard water and electrical do not mix ford needs to redesign these sunroof rails to prevent water from seeping threw the cracks of the factory installed rivets

Filed Dec 7, 2022 · Body, Electrical · VA

Vehicle had electrical issues - Diagnosis by dealership was water damage to the Body Control Module. This module is inside the cabin on the front passenger area by their feet/legs. The issues included - flashers goin off, horn going off, truck bed gate dropping open - while parked and while driving down highway, and entire vehicle just shutting down while ALL of the issues happened at once. People have been put at risk by the gate dropping and the immediate shut down of an operating vehicle. The dealer was able to reproduce the problem. I had it happen twice. I have since identified that it is something that is a known issue on F150 forums. So much so that the likely cause of the water damage has been identified, and forwarded to the manufacturer. They are not fixing the issue. Manufacturer's dealership technician identified the water damage as the root cause. Required a replacement Body Control Module. Possible warning signs: Noted by myself and others. Emergency flashers randomly going off. Power drain on batteries. Horn going off randomly. Root cause: Unsealed seam between body panels under the hood in the engine bay. Leaking water falls on firewall and then onto the Body Control Module electrical component. Shorting will eventually ensure. This can happen any time. F150 forum thread documenting the likely culprit leaking seam: https://www.f150forum.com/f118/water-leak-cowl-seam-474781/

Filed Apr 30, 2020 · Body, Seat belts · 41,000 miles · MA

While vehicle is sitting stationary or parked. During rainy weather water leaks in at top of rear door at the top latch where it runs down through the panel exiting at the first seam where it runs down the outside of the door panel to the mat. The seat belt behind the panel gets wet and water gets on the electric door lock window controls. The water runs forward to the front passenger floor where it collects (by the gallon) under and on top of the floor mat.

Filed Feb 7, 2020 · Body, Electrical · 14,102 miles · OR

Ford f-150 2018 super crew cab 1st water leak inside of our truck cab created a mildew smell due to wet carpet padding and carpets. Water saturated electrical wiring under the door seal protectors on the right-side of the front and rear doors. First noticed a problem driving and applying the brakes we heard a water sloshing sound on the right side of the truck. Indications of water in cab and saturated carpet's and wiring went unnoticed due to weather tech full floor mats. We contacted ford corporation online and they advised for us to take it into our dealership to be assessed. Our dealership made an appointment a week out, so our truck sat in our garage for an additional week. We used a shop vac and sucked out as much water as we could and left the door windows down to help dry out the interior. The dealership removed and reinstalled the trim panels with silicone sealant on both doors on the right side.

Filed Feb 7, 2020 · Body, Electrical · 14,336 miles · OR

This is a continuation with complaint number 11307725 already filed. Ford f-150 2018 super crew cab 2nd discovery of water leak in cab of truck with wet carpet padding and carpets again only this time the water leak was behind the back seats down the cab wall interior. Called our ford dealership back and took our truck back in for them to assess this 2nd water leak. Our ford dealership advised that they had to remove the truck bed to find this water leak coming in from the rear cab vents and locking tabs on vents. They also found the carpet insulator was behind the rear vents which caused the vent seal to warp and leak. They had to replace the rear vents completely then they retested for leaks and found no leaks at that time. They also replaced the truck bed bolts and had to respray in the bed liner over the bolts.

Filed Jan 31, 2020 · Lights · 62,000 miles · GA

Tail light assembly leaks water causing the bulb to blow. It accured twice in the last 6 months.

Filed Jan 11, 2019 · Body · 3,500 miles · PA

Tl* the contact owns a 2018 ford f-150. The contact stated that the doors would not unlock and, occasionally, would not latch properly. The contact indicated that the failure occurred during freezing temperatures. Shults ford of wexford (10401 perry hwy, wexford, pa) diagnosed that the failure was due to water entering the door cabin, which caused the locking mechanism to freeze. The failure was not diagnosed or repaired. The manufacturer was notified. The failure mileage was 3,500.

Filed Dec 18, 2018 · Engine, Transmission · 60 miles · NY

Tl* the contact owns a 2018 ford f-150. While driving various speeds and changing gears, a high pitched whining sound was present. Also, while driving and releasing the accelerator pedal, a rattling sound was present coming from the engine. In addition, water leaked into the cabin due to a faulty vent. The vehicle was taken to hassett ford (3530 sunrise hwy, wantagh, ny 11793), but was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 60.