lenny_shadow80
Tucson Hybrid electrical malfunctions
Summary of the thread
A 2022 Hyundai Tucson Hybrid is experiencing electrical malfunctions, including error messages and a weak engine start, possibly due to a drained battery. The issue is suspected to be related to the auxiliary battery not charging properly. A similar problem was resolved by replacing the auxiliary battery, which was confirmed as the cause of voltage drops. The suggested solution is to have the vehicle checked at a workshop to address the battery issue.
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4 comment(s)
lenny_shadow80 (community.author)
Auxiliary battery, huh? Was it a constant thing, or did it come and go? And did you notice any voltage drops?
kurtzimmermann68
Yeah, it was definitely the auxiliary battery causing the voltage drops. Started intermittent, then became constant. Honestly, I'd suggest getting it checked out at a workshop, as electrical gremlins can be a pain to diagnose.
lenny_shadow80 (community.author)
Thanks! I took your advice and went to the shop. Turns out the auxiliary battery was indeed the culprit. Repair cost me 290€. Appreciate the help!
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HYUNDAI
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TUCSON
kurtzimmermann68
Sounds familiar! I have a Tucson too (though not a hybrid), and I had similar issues. Low voltage warnings popping up all over. Was it the auxiliary battery, or something else?