Chevy Equinox Died, TCS light came on. Snowy/Icy conditions. What should I do?

The car died 20 minutes after driving uphill in snow and ice. The car died on a flat spot (thank god). It restarted just fine and I made it home ok even going up another 12% icy/snowy hill. What should I do? I don't want the car to die on a icy hill.