I have a bit of an update on my truck with regards to the AC system cutting out. My truck has been at the dealer now for over a week with them running various tests on it to try and catch the problem happening, which they have not been able to do as of yet. I have been on the phone daily with them to try and push them in a direction to change some parts especially after reading some of the responses in this thread. I was pushing for a condenser and expansion valve replacement. They kept insisting that they are not going to throw parts at the problem with out seeing the issue happen.
I called them this morning and got a little heated with the manager there about having my truck for a week now without doing anything. That put the pressure on them and they ended up contacting GM again this morning and talking to a tech there about the problem. Long story short after talking with the GM techs for the 2nd time over the last week, they were finally able to find an unpublished GM tech bulletin relating to the issue. This means that as of right now they are going to swap the condenser and compressor on my truck to resolve the issue.
This overall has been really annoying to deal with and was the overall reason I waited so long to finally take the truck in to have the problem dealt with. Anyone out there getting the run around about this issue with their own canyon/colorado I encourage you to keep pressure on the dealer or they will just tell you to take the truck back like they tried to do with me twice over the last week.
If I can get a reference to this tech bulletin I will post the number in here at some point
Last edited by HaruTheNinja; 05-25-2017 at 10:21 PM.