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Hi Everyone,
Been a while since I've been on here. Just been enjoying my C5 and doing minor upgrades. I have an issue with the parking light illumination on my HVAC controls. None of the back ground (parking lights) on my controller work. The display works fine (one of the first repairs I made to my car several years ago). The "on" lights work (i.e. A/C, recirc, defrost, etc.). I just don't have any background lights when I turn the lights on. Do they all go bad at once? I've been considering doing a LED upgrade but want to make sure there isn't some other problem before I go that route.
Please let me know if there is anything else that I should be looking into before I begin changing bulbs and find out that there was a different issue.
Thanks.
Last edited by jiokirk; Jun 15, 2026 at 09:45 AM.
Reason: Added photo
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HVAC lighting trouble
