One problem related to battery has been reported for the 1998 Subaru Forester. The most recently reported issues are listed below.
When vehicle was turned on it suddenly accelerated backwards very fast, crashing into two vehicles. Consumer has contacted dealer. Cause of the problem has yet to be determined. While vehicle was in park and consumer had foot on the brake and turned on ignition the vehicle accelerated very fast in reverse and caused accident, consumer is also having various electrical problems with the vehicle, such as the battery draining, security system goes off while parked, and the doors lock by themselves.