One problem related to battery has been reported for the 1999 GMC Safari. The most recently reported issues are listed below.
Vehicle has been experiencing ongoing problems within a 12-month period. Fuel injector had to be replaced on four occasions/driver's power lock failed to operate/courtesy lights and radio would come on intermittently/battery shorted out on two occasions/side window stopped operating/tail lights intermittently blinked off/on/odometer would flash off/on, and rear door would intermittently lock/unlock. Feel free to provide further details.