Toyota Corolla water leak on driver's side floor due to clogged sunroof drain causing extensive damage on Toyota Corolla

Submitted by Jen D. · Jul 3, 2025
Published by RepairPal

Problem overview

Some Toyota Corolla owners report experiencing water leaks on the driver's side floor due to a clogged sunroof drain. This blockage can lead to improper drainage, causing water to accumulate and leak into the vehicle's interior. If not addressed promptly, owners may face extensive damage, including mold growth, musty odors, electrical issues, and damage to carpeting and upholstery. It is crucial for owners to take immediate action to clear the blockage and ensure proper drainage to mitigate these risks. In cases where the problem persists, seeking professional assistance from a mechanic or auto repair shop is advisable to accurately diagnose and repair the issue.

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