Prius Warning Lights Exclamation Point. The warning light would hopefully clue you in to place the fob in the slot on the dash in order to start the car in case the battery actually is dead. Today, came home from work and when I got back in the car, the red warning car exclamation point light is on.
E: I checked it out online through Toyota's website.
How To: Toyota Prius Dashboard Lights Won't Turn On
I think the master warning light and other lights were still coming on, but after I tried several times I noticed that the master warning light and the car with the exclamation point weren't coming on anymore. I have no clue what this means as well as I dont have an owners I also live in FL and get the same warning light come on and off all the time in the morning or the cooler months. The other is a yellow key and exclamation point. . . this is the key out of range warning.