I'm the latest victim of the battery draining surprise hatch opening overnight. We've tried jumpstarting the Ascent (2020) with a jumper box and the battery will not take any charge. Instead, the lights on the interior and exterior flash like I'm at a disco. We stopped the process after 20 minutes because the lights kept flashing and no additional charge was gained. The battery is still dead (along with my plans). Any strategies or should we request a dealer tow?