2014 Silverado I purchased in late August with 61,000 miles have drove it 6,000 miles with NO issues till last night. Started up the truck, put into gear and started rolling when the steering assist disable alert came on for a split second then went out (truck has had current recall performed). Drove about 5 miles up the road with out any other issues to get gas. Pulling out of the gas station the headlights and dash lights flashed and the HVAC went to A/C mode on, didn’t think much about it just turned off the A/C and proceeded to drive back home. On the way home in traffic I noticed as I applied the brakes my headlights and dash lights would flash. As I turned on my turn signal to pull into my driveway the whole vehicle died!!! Engine shit off and it was just as if you climbed into a vehicle with absolutely no battery at all everything was dead. Fought the steering into the driveway, put it in neutral turned the key off then to crank, started up just like nothing ever happened. The display said theft deterrent active, 2 keys programmed, then something about the drivers window being down?!?!? Living across the street from where I bought this I went straight over and told them there was an “issue” I explained everything that happened and when they hooked up the code reader the only code was for the right headlight circuit. I left it there for them to look at because I felt unsafe driving it. They called me today wanting to know how often this had happened and i explained i had just bought it and it was the first time for me. They said ok thanks for the info, a few hours later they called and said that the only abnormality they could find was that the negative battery cable was showing excessive resistance. I told them that it has to be fixed and they said ok we will order the cable and then they told me that after the cable $100 plus labor and then the diagnostics that my bill would be around $430. I said $430 and it would be fixed? They replied that they couldn’t guarantee that because they wasn’t 100% sure that was/is the problem. Has anyone else experienced anything like this??