I have an 05 equinox, and I was driving one day up a hill and it died with my traction light came on and my oil light came on...I had to have it towed home and now battery too dead to start..you think it's oxygen sensor or what??

 

I would have your battery and charging system checked. This would include battery cables.

 

I would agree and start with battery, alternator, etc, checks. However, there could be something else going on more serious and without really diagnosing it, its' hard to say.