Car Stall problems of the 2015 GMC Yukon

I purchased my vehicle October 31'st 2019 from a local dealership. The milage was about 74k miles. I have only had this vehicle for a few months. My concern is the following. While driving, at least 7 to ten times the vehicle completely stalls. In other words it completely stops. The steering wheel locks. All power is lost. No lights no nothing. This has happened at intersections, it has happened when turning left, it has happened when turning right. It happens when we are yielding. Sometimes the dash starts to flicker and also the console. Sometimes like today without any warnings. This is puts me and my family in a very dangerous situation. Please respond ASAP. I currently have 86k miles on my vehicle.

The contact owns a 2015 GMC Yukon xl. While the vehicle was stationary, the vehicle stalled without warning. The contact placed the vehicle in park and was able to restart the vehicle. After turning the steering wheel, the vehicle stalled. The vehicle was not repaired. The manufacturer was not made aware of the issue. The failure mileage was 64,712.

Our 2015 Yukon xl denali has been in for repair service for 41 days since purchased new 3/23/15. The car has stalled while in motion with my wife and three daughters in the vehicle twice and been unresponsive to throttle input 3 additional times. The stall occurred once while turning left across traffic and another time while turning right and merging with traffic! the problem is intermittent and GMC has never been able to replicate it. They have given us the shoulder shrug, "I don't know what to tell you, we can't replicate it" line, so here are your keys. No warning indicators, no signs it may happen, and no way to pull up the issue with their diagnostics. . . Huge safety concern and each time they have handed us the keys back after 7 days (their standard allotted time to have a loaner out) without any proactive escalation to find root cause or concern for my family's safety. The last time we took it in, they had it for 8 days and could not replicate the issue. We signed our service paperwork and I escalated to the service manager before leaving. After telling him we would be pursuing buyback, he miraculously had an idea it may be related to a wiring harness issue. This was based off his experience with a sierra pickup (5. 3l, not our 6. 2l) that had similar behavior. We left the vehicle and, wouldn't you know it, they replaced a wire and "have reasonable confidence" it resolved the issue. Two weeks later, it's back in the shop for key fob not detected (after already driving). Truck is in gear and you cannot move. . . Another huge safety concern. It's a dud. We have also had to have all 8 injectors replaced due to rough idling and the steering gear replaced from faulty manufacturing that creates a clicking while turning the wheel, the car is at the dealer and we will not be taking it back. We are going through the offical buy-back process with GMC.