2018 Silverado; started fine this morning. Lunchtime went out and nothing, jump started tonight ran it for 20 plus minutes and during this time when I turn on turn signal, both sides blink fast like burnt bulbs? Shut off truck went to restart, nothing?
any thoughts

 

dead battery from faulty charging system is one possibility. battery light on? and dtc set? voltmeter reading below 12volts when running?

 

Do you get notifications displayed like stability track or service 4x4