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philippdark1

Monza Rear Window Heating Issue

My 2020 Chevrolet Monza (gasoline engine) has a rear window heating issue. Mileage is 212731 km. There's an error stored, and the windshield heating isn't working either. Could a weak battery be the cause?

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)

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.

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