When I begin driving the car in the morning and it hasn't warmed up quite yet, the first couple times I shift into second I'm getting a grind. It's cold where I'm at in Prescott, AZ (around 20 to 25 in the morning) and I do let the car sit and warm up a little instead of just driving it off, but I can't dismiss the fact that something might be wrong. I'm thinking of trying a different transmission fluid but should I check or try anything else (fluid level is fine)? Scion wants to test the car out but they're gonna do it in California (my hometown) where I bought the car, and the conditions won't be nearly the same. Does anyone have any suggestions?