I tried to search if others have asked this question, but was denied, with the explanation that Warning Range were too common of words.
So for shits and grins, I took my 2017 down to 0 miles range. Fortunately I was near a stout 240V charger.
I started the drive with 8 miles left to go, and 8 % SOC. I took a country road and was doing an average 50 mph.
If I punched it, the car responded as usual.
No messages of limited range, no icons of turtles, no color changes. Where were the warnings?
At 4 miles left, I turned around and drove back. The SOC was at 6%. The car would accelerate as usual.
At 1 mile left, the range circle in the small navigation screen was shrinking.
Soon, it was smaller than the arrow representing the car.
Still, no words, no warnings, no flashing lights.
Finally, I was at the charger, but decided to drive around the block a couple of times.
Still could accelerate quick, and I must have drove for 2 miles before it went to 0. Then drove back to the charger.
Charging, SOC was 4%
Never was there a message about reducing speed, reduced range, turning off climate (though it wasn't on), charge now, turtles, snails, sloths with X-out eyes, nothing to let me know that I was heading into a world of hurt if I kept driving.
The Fiat 500e will give you a turtle, but you will slow down before that. The range and SOC will go from green to yellow at 20miles or 15% SOC, and then orange, and then red.
So will a FFE tell you that you are soon to be SOL, or is there something up with mine?
An aside, after charging to 100% a couple of times after that event, I checked the Kwh to empty with Forscan. 28.006.