Ford F-150 water leak into cabin from high mount brake light causing headliner damage on Ford F-150

Some Ford F-150 owners report experiencing water leaks into the cabin from the high mount brake light, which can lead to headliner damage. This common issue may be caused by a faulty gasket or seal around the brake light, allowing water to seep inside. To address this, some owners have found success by replacing the old gasket with rubberized foam weather stripping or using silicone or 3M strip caulking to create a new seal. If left unresolved, these leaks can cause stains and potential mold growth on the headliner and other interior components. In cases where DIY repairs do not resolve the issue, it is advisable to seek a professional inspection to accurately identify the source of the leak. Additionally, some owners recommend checking the AC drain and inspecting the windshield gasket for damage to prevent further water intrusion. Promptly addressing these leaks is essential to maintain the Ford F-150's integrity and prevent additional interior damage.