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Home >> Lexus >> 2021 >> LS 500h RWD >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Seat Heater System - Diagnostic Codes & Symptom Tests (1 Of 2) >> Seat Heater System >> Seat Heater for Front Left Seat does not Operate [10/2017 - 10/2020] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • If the auxiliary battery voltage is low, the seat heater system may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation" is displayed on the multi-information display in the combination meter assembly, inspect the auxiliary battery, referring to On-vehicle Inspection for the charging system.

    Refer to ON-VEHICLE INSPECTION [10/2017 - 10/2020]

  • Inspect the fuses for circuits related to this system before performing the following procedure.

HINT: 

If the auxiliary battery voltage is low, the seat heater system may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation" is not displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".

Refer to DATA LIST / ACTIVE TEST [10/2017 - 10/2020]