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berndbraun2

Tucson Battery Drain

My 2012 Hyundai Tucson, gasoline engine, with 173923 km is having battery issues. I'm seeing error messages, weak lights, and starting is difficult. Could a defective battery sensor be the cause?

Summary of the thread

A 2012 Hyundai Tucson was experiencing battery issues, including error messages, weak lights, and starting difficulties. Initially, a defective battery sensor was suspected as the cause. After confirming clean and secure battery terminals and considering the battery's age, it was determined that the sensor might be misreporting the battery's charge. The issue was resolved by replacing the defective battery sensor at a workshop, restoring the car to normal operation.

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4 comment(s)

amelieschulze2

Sounds like a classic discharged battery. Error messages, flickering lights, and starting issues point that way. Before assuming it's the sensor, check the battery terminals for corrosion or loose connections. How old is the battery?

berndbraun2 (community.author)

Terminals are clean and secure. The battery is about three years old. Does a defective battery sensor still seem likely, or are there other things to consider?

amelieschulze2

With clean terminals and a 3-year-old battery, a defective sensor is more likely, especially with the error codes. It might be misreporting the battery's charge. I'd recommend a workshop to confirm the error memory and replace the sensor. Fixing it yourself probably isn't worth it.

berndbraun2 (community.author)

I took it to a workshop, and the battery sensor was defective and replaced. The repair was 315€. The issue is resolved, and the car is working normally.

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HYUNDAI

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TUCSON