I noticed that when I'm stepping on the gas pedal, revving up, when I release the gas pedal I can hear the engine revving up some more instead of slowing down. When I release the pedal even if the revolution light on the dashboard shows that it is slowly dropping, the engine is still making the noise as if I am stepping on the gas harder for about a second. Example: I am at a stop, when I start going from 0 to 30 mph, if I release the gas right away thats when I notice this issue. This doesnt happen when I'm cruising on the same speed and suddenly release the gas. I wonder if this is an indication the my tranny is having a problem. I have a 2013 prius C 2 Any help will be appreciated.