2009 Pontiac G6 electrical system problems

I purchased a used 2009 Pontiac G6 for my son less than 7 days ago (3 ). While driving on the highway attempting to exit the ramp, the steering wheel began to get very hard to turn. We nearly crashed! Just yesterday placed the car in park. Although the shifter showed it was in P for park as well as on the dash, the car began consistently moving in reverse. This vehicle is a safety hazard for my child and due to it being a used vehicle Im not protected by a warranty.

Low beam lamp passenger side out. Not knowing any better I. Bought a new sylvania bulb. Two weeks later out again. I did a little research and found this is a huge problem with g6; GM & more than likely too expensive for me to fix immediately. I just bought car from dealer & on ssdi; therefore, have no money to even purchase another bulb let alone housing, connector stuff etc.. This is a safety issue with a tremendous amour of vehicles; see carfaxs on this model.