2012 GMC Acadia Can I convert HID headlights to Halogen? HID headlight assemblies require a 2nd Mortgage!

I have a strange issue with my new Acadia. When going up hills at highway speeds the engine starts missing. Other wise it runs fine. Is anyone have having the same issue and is there a fix?

So I was driving to work the other day and while on the highway, my lights randomly came on and I noticed a change in the way my engine was performing along with a jerking feeling. The reduced engine power warning did not appear(thank god). I am wondering what this could be and what I can do on...

Does anyone know how I could determine which transmission my Acadia has? There seems to have been two different transmissions used, 6T50 & 6T70.

Looking at some wheels off a Canyon that I want to replace my wheels with. Bolt pattern is the same but the offsets seem about half of each other. Our offset is 35mm the other wheels are somewhere between 18 and 0. According to aftermarket wheels I'm looking up. So the wheels I'm looking at are...