Oh my head hurts. I swear people are going to kill me.
Let me get this straight, your car showed it had a MAJOR system failure, and you just drove it for 30 minutes. Sigh. You drove around a 4,000+ projectile able to kill dozen while it was having a system failure, and you just drove it for 30 minutes. And of course it happened again, and of course you continue to drive it.
Sigh.
So massive system failures are rare, less then 1% of all cars produce in the USA by all brands. The VAST majority of the system failures are caused by a bad battery, which needs to be replaced. A bad battery can effect braking, steering, and safety systems. If you are car is flashing warning lights, please pull over and get roadside assistance to the nearest kia dealer.
Please do not drive a car that is having a major system failure.