MULTIPLE BATTERY FAILURES REQUIRING JUMP STARTS: SEVEN (7) TIMES SINCE I BOUGHT THIS SUV IN FEB 2011. THREE TIMES THERE WAS A POSSIBLE KNOWN CAUSE FOR THE BATTERY DRAIN: THE PASSENGER VANITY MIRROR LIGHT WAS LEFT ON FOR 15 MINUTES, 2 HOURS, AND AN UNKNOWN LENGTH OF TIME. NONE OF THESE THREE EPISODES WAS SIGNIFICANT ENOUGH TO CAUSE A COMPLETELY DEAD BATTERY IN ONE THAT HAS BEEN EVALUATED AS IN EXCELLENT CONDITION. I DRIVE IN THE MOUNTAINS ALL WINTER. GETTING STRANDED IN AN ISOLATED PLACE CAN BE DEADLY DUE TOO EXPOSURE, RISK OF COLLISION ON SINGLE LANE SNOW-OCCLUDED ROADS WITH 2-WAY TRAFFIC AND FAST SNOW PLOWS. OTHER TOYOTA HIGHLANDER HYBRID OWNERS HAVE HAD THE SAME PROBLEM. TWICE NOW THE DEALER HAS SAID THERE IS "NO PROBLEM" WITH THE BATTERY. I AM PURSUING CORRECTION THROUGH THE LOCAL TOYOTA CUSTOMER RELATIONS MANAGER AND WILL FOLLOW THROUGH WITH TOYOTA'S CUSTOMER EXPERIENCE CENTER AND THE CALIFORNIA DISPUTE SETTLEMENT CENTER IF A PROMPT LOCAL SOLUTION IS NOT ACHIEVED. HTTP://ANSWERS.EDMUNDS.COM/QUESTION-WE-HAVE-A-2010-TOYOTA-HIGHLANDER-HYBRID-THE-BATTERY-IS-CONSTANTLY-DYING-ON-IT-EXAMPLE-LEAVE-DOOR-OPEN-10-MINUTES-AND-IT-S-DEAD-144840.ASPX *JS