Coolant, Brake & Seat Question

[gollygirl1]

Ok so I am new to Yaris - one week only - so a couple of quick questions.

(1) when I start my car it sometimes the coolant light comes on - on one really cold day it was blue, but most of the time is green when first starting up cold.
I am assuming this is normal until the car warms up (as the light goes off shortly after).

(2) Does anyone notice how the brake seems to be a bit higher in this car? (Level position to the accelorator but only higher)? Or is it just me? I am thinking I am weird - I have been driving a 1995 Honda previously and the brake did not seem so high in that but this was an older car, but right now I am having trouble getting comfy in my seat !!! My daughter has driven a Hyundai i30 and says the position is the same in that, so I guess maybe in more recent cars the brakes are higher for safety? and I have to just get used to it.

(3) And lastly, how do you put the seat up? I tried to pump it but it went down, now I am scared to try it again in case it goes too low. I know it works as the dealership did it, just not sure how !!!

Thank you for putting up with my dumb questions.

Yaris is the 2013 YR if that helps.