I'm just curious what exactly is different when selecting either of those transmission control options. I think I read somewhere that SNOW starts the car in 2nd gear and dulls the throttle input, and PWR increases throttle response and decreases shift times, but that's all I really know (if that's even correct). I'd like to know more specifics or details if anyone has that info.

 

I know on certain benz that's what the snow does. Start on second gear and soften throttle response. I think power is better response and holds gears for longer. I never really use power though. I use to feel a difference in sport suspension but now that I have wheels on it it doesn't feel as dramatic.

 

PWR raises the shift points and sharpens the throttle response. My better half calls it "Angry mode". <LOL>
SNOW limits wheelspin, softens throttle response, and I believe disables ABS below 20Mph. It also changes how VSC responds to skids and such.

 

LS430 Transmission Pattern Select

 

Sweet, thanks for the detail. So could you theoretically use Snow mode for improved MPG? I know I've put it on in bumper to bumper traffic and it's much smoother speeding up and slowing down constantly than in normal mode.