On the dash of my 2023 HEV there is a display, which I can choose, that shows relative power going to the wheels. I occasionally use it, out of curiosity to see how the car is applying power to the wheels. As near as I can tell, the “mode” selected does not affect 4wd, except Snow mode results in full-time 4wd. With other modes, the car selects whether to send power to the rear wheels and how much power is sent. I have done little driving on slick roads (I am retired and can largely choose when to go out, or not) but the car seems to detect any slight slippage and react appropriately. Driven moderately on dry roads, it seems to send power almost exclusively to the front wheels.
