My 2013 manual transmission GT does not have hill assist for some reason. No check engine light, but I have not checked for any DTC's. Is there a way to turn it on or off? I don't need the hill assist per se, but I am just concerned because it never has worked. Bought the car brand new with 6 miles on it. Also, is there any form of skip shift in the 13's? I don't have any skip shift.