While at freeway speed (~75mph) ‘Vehicle Will Shut Off Shortly’ warning appeared and lost propulsion. I pulled over and was able to get to a rest stop at reduced speed (~35mph) with the remaining battery power but it was not ideal as shoulder was limited due to road construction and could not leave vehicle on side of the road. Prior software update 03A / 23V-010 was performed as it looks to be a known condition. The software update does not repair the root cause of the failure.