I’m in need of some major help. I have a 2016 Chevy Silverado 1500 4 door cab. My a/c went out so I took it to the shop to get fixed. Since we got it back nothing but issues. The a/c worked for ONE day and it’s not working again. In addition, my truck is now leaking oil. Two days ago it got stuck in 4wd. Now it’s back in 2wd but says “service 4wd”. Help! I plan on taking it back to the shop but it’s been a nightmare. I’m also fighting with the after market warranty company. There are 123,000 miles on the truck roughly.