Battery light stays on in my 2006 Gran Marquis. Battery is one yr old. How come?

Asked by GuruX2DT Apr 08, 2017 at 08:36 PM about the 2006 Mercury Grand Marquis GS

Question type: Maintenance & Repair

Only drive the car about 15 miles a week.  So far, the car has been starting fine.  
Should I take it for a 20 or so mile highway run to see if this does the fix?

2 Answers
157,475

Bob answered 7 years ago

Battery light staying on indicates that the alternator may not be charging the battery. Take it to an O'reilly Auto Parts of similar store for a free alternator test.

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