2003 Silverado Keyless entry

I just bought a 03' silverado LS. I got the truck at an acution and it only came with one key. I was wondering if anyone knew how to tell if the truck came with keyless entry?

The easiest way is to call your local GM dealership's parts department with the VIN number. They can confirm if you have keyless entry installed or not...but most 03 Silverados do if you have power door locks.