Introduction
This bulletin addresses the issue of excessive buildup of dust, lint, or debris in the HV battery intake filter or cooling fan in some 2004-2020 model year Hybrid vehicles.
Applicability
The affected models include Avalon HV, Camry HV, Corolla HV, Highlander HV, Mirai, Prius, Prius C, Prius PHV, Prius Prime, Prius V, and RAV4 HV.
Procedure
The bulletin outlines procedures to inspect and clean the HV battery intake filter every 5,000 miles and replace it every 20,000 miles or when the battery assembly is replaced.
Manual:
Download: 2020 Toyota Technical Service Bulletin – HV Battery Cooling System Maintenance
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