Toyota Sienna trunk liftgate allows debris and water entry, causing mildew smell on Toyota Sienna

Some Toyota Sienna owners report experiencing issues with the trunk liftgate that can allow debris and water to enter, resulting in a musty or mildew smell inside the vehicle. This problem often becomes noticeable when moisture accumulates in the trunk area, leading to the development of mold and mildew. To address this issue, owners are advised to check for leaks or seepage in the trunk that may permit water entry. Additionally, inspecting the evaporator drain tube for clogs and ensuring proper functionality of the air conditioning system can help prevent moisture buildup and subsequent odors. Regular maintenance, including cleaning the HVAC system and checking for sources of water entry, is recommended to mitigate the mildew smell issue in the Toyota Sienna.