Adaptive cruise temporarily unavailable message and Engine dies when hot outside / 2015 Yukon.

[kakelusa]

It has happened a few times where I get the message while driving and I see the lights outside dimming while at a light, a couple of time the card just died after idling for 10 mins or so.
It just started doing it in June when it started getting really hot ( 95/100 Deg.)
Any body has experience that before?

 

[Doubeleive]

First thing to check is the battery cables try cleaning them even if they "look ok"

 

[kakelusa]

Doubeleive,
I saw a few post online about the ground battery cable giving issues, the exact same symptoms I have, I cleaned all the ground connections to engine, body, etc and finally replace the ground cable from battery. We will see if that fix it.
Thanks for the reply.