Sierra DIC?

I was reading through the manual for a 2004 GMC Sierra and it said that you could change the alarm and how the keyless entry things work (honk the
horns, light the lights or both) and then it showed how to do it if the Sierra has the DIC and the buttons on the steering wheel. How are these things adjusted without those buttons? TIA
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.