Yaris Traction?

[2009Yaris]

I know this question has more than likely been asked before, but is the Yaris with the automatic transmission a one-wheel drive car? I currently own an 2009 5-door hatchback with the automatic transmission that drives horribly on non-dry pavement. Slick hills are a nightmare to navigate. I previously owned a 2008 sedan with the manual transmission, but I had to trade in that car due to a severe injury that left me without the use of one of my arms for the better part of a year. The 2008 sedan drove much better on non-dry pavement. I got stuck at the bottom of a hill today. The left front wheel was on dry pavement. The right front wheel was spinning on a patch of black ice.