2012 Smart Fortwo Electrical problems

Transmission will go into three bars and not shift on highways and parkways, usually able to safely drive under power to side of road sometimes goes into neutral and have to coast to side. Occurs with elevated ambient moisture. Started at 32,000 miles. Known issue, transmission has a limp mode for this occurrence. Very difficult to diagnose, appears electrical in nature. Smart dealership will not address.

I was driving on the freeway (5 lane) in my 2012 smart fortwo passion coupe in the middle lane at 65-70 mph. All of the sudden my accelerator was no longer functional. I looked down and saw that my speedometer and gear indicator were also non-functional. I was able to coast (despite heavy traffic) to the shoulder of the fast lane - it was impossible for me to get to the slow lane shoulder due to heavy traffic. I was able to use the breaks once I hit the shoulder (unsure if power brakes or not) and once stopped was...