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Lights Flickering & beeping and bass noise

1041 Views 3 Replies 4 Participants Last post by  campb292, 
mkmalibu3
My 2018 1.5 Malibu has began to make a loud bass noise as well as beeping and also the interior and headlights flickering. This problem only happens in a dark area like my garage or at night time. Does anyone know the cause or solution to this?
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repairman54
I'd would put a volt meter on the battery terminals with the headlights on and see if the charging voltage to the battery is varying and not steady.
May be a sign of alternator going bad.
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