Lexus LX rear window heating issue

Rear window heating not working on my 2011 Lexus LX with a gasoline engine. There's an error stored, and the windshield heating is also acting up. Suspect a bad battery. Anyone seen this before?

4 comment(s)

I had a similar issue with my old Volvo V70. Rear defroster quit, and it was an electrical thing. Did you check the fuses for the auto defrost and thermal window? Could be something simple. How old's your battery?

Fuses are good. Battery's about three years old. Could a partially bad battery cause the error and kill the rear defroster, even if the car starts okay?

Possible. Three years isn't that old, but batteries can be unpredictable. My Volvo started fine, but the defroster was a symptom of a bigger electrical problem the weak battery was making worse. Given the error code and the windshield heating issue, I'd get a diagnostic check before replacing parts randomly.

Appreciate the advice. Taking it to a workshop for a diagnostic. Will post what they find. Estimate is 290€.

Join the discussion now: