Same issue, been in the shop twice and it happened yet again. Self corrected so I am skipping the third visit. Check engine light comes on as well. Called GM Regional Service Manager and his response was to call him when I take it in and he will work directly with dealership. Very tired of paying $760 each visit with the problem not being resolved. $1500 so far! Only 28,000 miles on truck. Replaced sensor first time, then engine partial harness second time and had truck over one week. Love my truck otherwise. Just want the issue fixed!