mine was same make and top number...i will check the other number....coachman and forest river probably made on same assembly line...this is only problem I have had besides a dometic brisk ac failure in first year (also bad batch)

 

I pulled the relay for the run/crnk and it gave me the exact same symptoms as what I was initially troubleshooting with the service airbag light in the five chimes. I am fairly confident that I have multiple relay failures. I ordered two new relays off Amazon I can't wait to replace them.

 

will stock up as well...best of luck to you and thanks again!

 

Of course. Clearing codes just clears codes. They tell you about a problem, not cause them.

Anyway, hopefully the relay is all it was. Strange that they are failing already on a 2015.

 

I have that same chassis on a 2014 Forest River Sunseeker. I’ve had lol the same issues from the stripped positive battery terminal to the crank no start. Lately it’s been all power, no crank, no start. Replaced the starter this morning at the campground! Thanks so much for the thread and everyone’s advice, I’ll have my mechanic look at those relays too. I’ll let you know.

 

The same problem of bad relay P/N 13502750 at 19,900 miles on my 2015 chassis C4500. Thinking it may be a bad batch of relays. Potential recall as obviously if the relay fails while driving the engine stops which could cause an accident.
I am going to file a report with NHTSA.
You should do the same.
If a number of people report similar NHTSA may push Chevy. They need a higher Amp rating on the relay.
My fuel pump draws 11.2 Amps which is only slightly above the normal range but this would warm up the relay and could cause points to burn.

Am analyzing the relay now to check readings. Will be carrying a replacement relay.
The service shop is AC/Delco dealer. The new P/N for this relay is13500126 and is identified as " HI PWR"