philippdark1
Monza Rear Window Heating Issue
Summary of the thread
A 2020 Chevrolet Monza experienced a rear window heating issue, with an error stored and the windshield heating also not functioning. The problem was suspected to be related to a weak battery. After a workshop diagnosis confirmed a defective battery, replacing it resolved the heating issue.
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4 comment(s)
philippdark1 (community.author)
The error message didn't specify the issue, but the diagnostic system suggested the battery. Any recommended actions?
lars_frank1
My problem was the battery. I had it tested and replaced. Given your error message and symptoms, a workshop visit for a diagnosis might be best. That way, you won't be replacing parts unnecessarily.
philippdark1 (community.author)
Thanks for the advice. The workshop confirmed a defective battery. Replacing it fixed the heating issue. The repair cost 290€.
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CHEVROLET
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MONZA
lars_frank1
I had a similar problem with my Monza. Was the error message related to voltage or electrical issues? I'm wondering if the heating system is sensitive to voltage drops.