Total system shutdown

[2015 Chevy Silverado LD cr]

60656 miles. The truck completely shutdown while in motion. All electrical in the vehicle shuts off for 1 sec and restarts. I have taken the vehicle to the Chevrolet dealer and addressed all recalls and bulletins. This issue continues to happen every 3 days. I have called the manufacturer and discussed this potential life threatening issue and was told to take it back to the dealership.  Does anyone know how to resolve my problems? 

[avalonandl]

Did they test the battery? A Cell grounding out? 

 

Loose conection at battery?

[Dirtbiker]

I had a very similar problem with our old dodge minivan. After a year of trying to solve the problem with 5 dealerships it turned out to be the whole ignition piece that the key fit into. Completely different vehicle i realize but it sounds like the exact same symptoms. Like turning the key off. Maybe some where to start looking anyway....

[ftwhite]

I had a 2012 Suburban do this. Would also fail to start back up after I shut it off right after this would happen. I had to short out battery to get it going again, or wait hours.

Turned out to be corrosion at the negative battery cable connections to engine and body (not at battery). New cable and cleaned up connections fixed it for over 30k and 2 years until I sold it. Dealer paid under warranty.

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[2015 Chevy Silverado LD cr]

I am at the dealership now getting a diagnostic check because my air bag light came on last week when the system powered down while driving. We believe it is the negative battery cables or the block on top of the battery.  I will know very soon.