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TSB Document:

Affected Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

Summary
TSB: Some 2020 ? 2022 model year Highlander and RAV4 vehicles, and 2022 model year Tundra vehicles equipped with a start/stop switch may exhibit water entry to the vehicle from the HVAC drain hose being disconnected from the air conditioning radiator assembly and/or a grease/oil odor emitting from the vents. This condition may be caused by paraffin wax leaking from the evaporator.

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Date Published
MAY 11, 2023
NHTSA TSB #
10238131
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