ESC and check engine light come on and lose power while towing a trailer

It was the Cam Sensor. I replaced both of them. I disconnected the Battery over night to reset the computer. I'm gonna pull the trailer to deer camp and mow. If the same thing happens I'll just unplug my trailer lights and hope for the best. And mess with it when I get home. Hey Thanks for Help. I've never been on a Forum before. This is cool. Thanks Again

Glad to hear you are enjoying the forum, and more importantly, thanks for the update! I love a happy ending.
 
That button is the hill decent button, it shouldn't have anything to do with pulling a trailer. I'm pretty sure it only works in 4 low. it's to replicate going down hill with a manual essentially.
Just to back this up, this button is down hill decent control and only works in 4 low. So helpful when going down steep trails.