BradsrTN

Nothing new to report yet. I went for a ride with the Service Manager last Wednesday and was able to reproduce the issue in Auto/Auto mode. The truck initially cools and then starts blowing warm air. I can tell when is happening by the condensation that forms on the vents. The SM was not sure how to respond when I could change the temp by stepping on the gas... I now have an appointment for next Monday for them to take another look at the issues. This will be trip #4. We will see.

I am wondering if anyone is experiencing temperature issues with the automatic air conditioning system in their Canyon or Colorado? Bought the 2016 Canyon in April and currently have logged 6,500 miles. About 6 weeks after purchasing I noticed that the cabin temp would get warm after about 15 ~ 20 minutes of driving. We drove the truck from TN to SC on vacation at the end of June and the problem became very annoying. The cabin temp changes so much that we have to adjust the temp setting to LO and then it will respond after a few minutes. The fan changes speed but the air continues to be warm. On our return trip from vacation I noticed that once the air started getting warm if I stepped on the gas enough to engage passing gear the cool air would return without adjusting the temp. I have been able to repeat the step on the gas process to change the temp many times. Today I have my truck at the dealer for the second time to check out the A/C issue and a 75mph+ vibration problem. The first trip I was told that the A/C systems was operating within MFG spec and I should use it in AUTO. I have been using AUTO and when that failed to keep the set temp I switched back and forth with the same results both ways... My confidence is not high that they can correct the issue. I am new to the Forum and have been reading about the Vibration issues and thought I would ask about the A/C issues. This is my first GMC and at this moment it does not look to promising..