Many different lights turned on, on the dash?

These trucks had problems with the BCM (body control module) especially when they get wet, but to be sure we need to do a CAN scan which is easy. You can get a CAN scanner (Controller Area Network) from Amazon from about $32.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Amazon CAN scanner Link.

https://amzn.to/3G7mpFP

Here is how to change the BCM out in the images below in case you need them, you can get a rebuilt preprogrammed BCM if you search Google or eBay. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.