Had my first flat bad experience this weekend , Good things : Tesla roadside assistance was excellent, had my car towed, uber and enterprise rental arranged all within 1hr. Bad things: I started to charge at a Nissan chademo and had to be towed amongst a bunch of Leafs, the Nissan guys got a laugh out of that; my battery is a B pack somewhat new as was replaced at around 20k miles. What happened is I plugged my car into the chademo it immed started to charge than for the red ring plus the 4 msgs below. My service advisor said something on the chademo tripped a sensor in my battery leaving the contractors open ...long story short is I have a loaner pack and waiting for my pack to get discharged and have new contactors installed.