Join Date: Dec 2010
Location: South Carolina
2012 Sonata SE 2.4L - Traded in on a 2014 Ford Fusion 2000 Camaro SS
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The alternator is internally regulated. However there is also external control of charging behavior by the PCM through an external sensor at the battery, so if you suspect any issues with the battery or charging system it would probably be best to have it checked at a dealer. Any problems should be covered under warranty, including a bad battery if it's within the full warranty or prorate period.
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