Windows, AC, Airbag light and more not working..

Dads 2016 tundra is having an issue with windows not rolling down, ac not working, air bag light on, running lights don't work and etc. Would this be a fuse or relay issue? if so how can we figure out which one it might be. Thanks!

 

I'd be looking at a wiring diagram first and find out what those systems share. With any luck it'd be a bad ground

 

Looks like this thread died; but I just wanted to jump on here to say I experienced the identical set of symptoms today on my 2016 platinum Crewmax. Turns out I blew a 7.5 amp fuse in the small fuse box under the driver side dash. It was the ECU IGN. 2.
Hope this helps someone!

 

My dads ended up being a fuse, maybe the same one I can't recall. Anyways it kept blowing and it turned out to be a short in the power rear view mirror.

 

That’s good to know! That’ll be the first place I look if it happens again.