Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Operation Check

OPERATION CHECK

CHECK WINDOW DEFOGGER SYSTEM

(a) Turn the engine switch on (IG).

(b) Check that the rear window defogger wire (back window glass) becomes warm by operating the rear window defogger switch of the air conditioning control assembly.

(c) When the vehicle is stopped, confirm that the window defogger system operation stops after approximately 15 minutes.

NOTICE:

If the battery voltage is low, the window defogger system may not operate. When "Operation of Electrical Items Restricted." is not displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".

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