I had a similar occurrence driving my 2015 Tesla down the off-ramp on an interstate at night. The car had very nearly run out the battery, and I was near '0 mil

I had a similar occurrence driving my 2015 Tesla down the off-ramp on an interstate at night. The car had very nearly run out the battery, and I was near '0 miles' of range. Sadly, the software in the car is dumb enough to allow you to convert momentum to 'regeneration' at exactly the time that the battery is unable to take charge at anything faster than a trickle. Outcome: rather than allow the car to _coast_ without regeneration, the car decided to force-feed the battery kW from the motor/generator until the some threshold was exceeded, and the car shut down the main traction battery. Dumb, dumb, dumb. But there is no way to realistically communicate this to the Tesla SW developers. Long story short, I flipped the car into 'tow mode' using the last 30 minutes of 12v battery power, and I solicited help from a passerby and a policeman to push the car 200 yards to a supercharger, where the battery, first, nibbled at a little bit of kW, and then after 5 minutes, when nursed back to good health, it inhaled high kW.