Three problems related to battery have been reported for the 1998 Ford Taurus. The most recently reported issues are listed below.
The door adjar sensor light stays on. All doors are shut but light stays on. When this light is on the interior lights stay on and also the automatic door locks will not lock. This problem causes the battery to run down and also for children to be able to open car doors when moving because the doors will not lock. I have taken the bulbs from the interior out to prevent running battery down. Have not been able to replace sensors in doors.
Intermittent battery discharge. . . Battery replaced 3 times in the last year. . . Unsatisfactory fuel economy -only 9 mph.
The interior lights stayed on after the motor was turned off. The vehicle was taken to the dealer who stated that there would be a charge to look at the vehicle. The consumer had to disconnect the lights so the battery won't go dead.