Is the trailer brake controller on the dash for Denali but on the tree for SLT? Why?

[JohnC]

And do all Denali's have the HD trailering package even though they aren't coded RPO code K5L??

Deciding on buying either a K5L-equipped SLT2 or Denali...

Thanks.

 

[steverkemp]

The trailer brake controller is on the dash for both. Denali has it standard. SLT, it's an option.