Quote Originally Posted by ralmo94 View Post
Wish there was a way to add it with hp tuners. My dad drives an 04 DBW 5.3. I turned LC on for it, but had to change it back. No cruise was not an option for him. Lol. Getting ready to do a 2000 mile trip in that truck, would be awesome to have LC and CC.
I would download the bin with PCMHammer, apply the patch with TunerPro, then do a write full flash with PCMHammer. Afterwards read the file in HP Tuners and the parameters you need to fine tune Lean Cruise are there in HPT. Just make sure that your dad's truck uses OS 12587603.