last night, for the 1st time, my 98 grand prix's batt light came on.

Asked by Apr 02, 2015 at 10:06 PM about the 1998 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

my battery light came on. I was on the hiway, scared to death, but it didn't act like it wanted to stall. it stayed on a while, then off, and came on again. went off once I hit town, but wed also had a heavy rain earlier in the  night. battery is just 5 mo old. any ideas?

2 Answers

61,085

Sounds like the serpentine belt is getting wet and slipping. Check for missing or damaged splash guards on the passenger's side near the wheel. Also, if the serpentine belt is old replace it. HTH. -Jim

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3,705

Sounds even more like a failing alternator. Check the belt as suggested above and have the alternator tested. It probably won't leave you stranded, the battery is there as your backup, but at some point it will stop charging altogether and then your battery will slowly go dead.

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