Is There WATER Inside Of Your TOYOTA COROLLA Doors? (EASY FIX) 

THE 2019-20201 COROLLA HATCHBACK
2020-2021 COROLLA, COROLLA HV
Toyota have a technical service bulletin (TSB) out to correct this issue. Toyota will cover the cost of the repair if your vehicle is under 3yr 36k miles.
If your out of warranty, then follow the steps performed in this video.
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