mats_winkler5

Express Battery Drain

Alright Chevy Express gurus, I'm pulling my hair out here. I've got a 2023 Chevrolet Express (gas engine) with about 179000 km on it and the battery is constantly draining. Getting error messages on the speedometer, the lights are flickering like crazy, and the error memory is full of electrical system faults. Starting the van is a gamble every time because the battery is so weak. I'm suspecting the battery sensor might be the culprit? Anyone else seen this before? This is driving me nuts!

A 2023 Chevrolet Express was experiencing constant battery drain, error messages, flickering lights, and a weak battery, leading to starting issues. The suspected cause was a faulty battery sensor. After cleaning the battery terminals without success, replacing the battery sensor resolved the problem, restoring the vehicle's functionality.

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4 comment(s)

I had a similar issue with my Express. The symptoms you describe – error messages and flickering lights – are classic signs of a battery drain. The battery sensor can definitely cause this. Have you checked the battery terminals for corrosion or loose connections?

Yeah, I cleaned the terminals already, they were pretty nasty but it didn't fix it. Did replacing the battery sensor solve the problem for you completely? Was it throwing any specific codes or anything that pointed directly to it?

Replacing the sensor did resolve the issue for me, yes. Unfortunately, I do not recall the error codes that were displayed. Given your mileage and the symptoms, I would strongly advise taking it to a workshop to get it properly diagnosed. Continuing to drive it with a faulty electrical system can cause further damage.

Thanks for the tip! Took it to the shop and you were spot on, it was the battery sensor. 315€ later and it's running like new. Appreciate the help!

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CHEVROLET

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EXPRESS