At around 20k miles, my 2011 SG started cutting out on acceleration just very occasionally. I couldn't track it down. Tried reseating every connector I could find multiple times, that'd help for a week or a month. Over time it got worse until I finally found a broken wire in the MAF sensor connector behind the throttle body. It's a 4 pin inline connector, one wire was totally broken, another was down to one strand. Repaired those and it's been fine for the last 85k. Mentioned it to the dealer service mgr, he said it was a known issue. Should've talked to him first, lol.