One problem related to battery has been reported for the 2002 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Buick Regal based on all problems reported for the 2002 Regal.
Complaint received via e-mail. On a trip from florida to pennsylvania super charger belt broke on I-95 south. Onstar directed me to a dealership for repair service. Serpentine belt idler pulley bearing seized. Replaced drive belt, super charger belt and pulley. Also, battery had to be replaced because of leaking acid from positive battery. This problem was not caused by belt failure.