I had this problem when temperatures reached 90 degrees and a/c was cranking while making a left turn. Truck shut off. Truck was under warranty. Brought it to dealer 3 times they could not repeat the issue. On the3rd time , days after the warranty expired, they said they found the problem and billed me for it. They said it was a loose ground wire under the radio speaker left top of dash board. Problem went away for 5 years now seems like its coming back again