"conditions not met"

[DickLowman]

I'm trying to set up the trailer brakes. On one of the trailer tow screens - trailer light check - i'm getting the message "unavailable conditions not met." Does anyone know what that means?

 

[Beltsand]

I believe you need to have a trailer hooked up, be in park, and (not sure which) key on or engine running to run the light check. If you leave it on the screen and start driving, it will go to that message. I do find the trailer light check pretty handy as before I do my final walk around, I'll start the light check and it will just keep cycling through the lights until I get back to the driver's seat. Don't have to shout back up to someone else to do all the checks when I finally get back there.

 

[dbruce]

You need the truck on, trailer hooked up, truck in park, foot off the brake to start the trailer light test. It took me a min to figure it out at first too.