Q: battery indicator light is coming on&current battery went dead. on 2004 GMC Yukon XL 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
put in new battery & light is still on & alternator is new. truck runs rough too. any ideas?
(2) Answers
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Need to have charging system tested. You either have some sort of wiring connection problem, defective alternator, or its possible the PCM could have failed. Alternator is controlled by the PCM.
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