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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Heated Glass/Defoggers >> Windshield Deicer System - Diagnostics & Symptom Tests >> Windshield Deicer System >> Problem Symptoms Table [12/2019 - 11/2023] >> Problem Symptoms Table [12/2019 - 11/2023]

Problem Symptoms Table [12/2019 - 11/2023]

NOTE:
  1. If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the windshield deicer system may not operate.

HINT: 

WINDSHIELD DEICER SYSTEM

Symptom Suspected Area Link
Windshield deicer does not operate Refer to the "Windshield Deicer does not Operate". Refer to Windshield Deicer does not Operate [12/2019 - 10/2022] , or refer to Windshield Deicer does not Operate [10/2022 - 11/2023]