A/C not working

[DetTigers]

'15 Yukon here. A/C went out while driving on the expressway and started blowing hot air. turned back on after 10 minutes.

 

[sevTahoe]

Yup. Welcome to the hot air club (although it hasn't happened for a few weeks now--crossing fingers it was a temporary issue). Dealers still act clueless about it. Something's clearly not right, though. Read somewhere that it may be a freon over-filling issue or a programming issue--who knows.

 

[DaveG]

Been loving my new Yukon!
This week I took the family to Lake Powell, 102 degree heat. First time I have experienced this problem so came to do some research. Seems there are plenty of others.

For me what seems to be happening (when outside temp is 95+) A/C works fine while driving. If you turn truck off and then restart it blows hot air for 10 mins or so. Then finally starts cooling off. Once it is cool, it works fine again until next time you turn off the vehicle. Even if only turning off vehicle for few minutes to let the dog out, you get 10 mins of hot air when you return.

Will look to take it to dealer next week....

 

[sharper4]

Add me to this list. We bought two Tahoes at the same time. On delivery day, my wife's A/C wasn't working. They took it back and fixed it, no idea what they did. Then yesterday, with 600 miles on my Tahoe it worked fine for my trip home from work to the daycare. I picked up my son, turned on the truck and the A/C blew hot air for about 3 or 4 mins before it kicked on. If it happens with any regularity I'm going to have to take it in.

 

[sevTahoe]

UPDATE: perhaps this will be of help to you guys. I'm now at 6000 miles and it hasn't happened to me again for over seven weeks.

 

[GM Customer Service]

Hello Everyone,

I'm very sorry to hear of the difficulties that you all have been experiencing with your A/C and I can definitely understand how frustrating this can be. I would like to look into this concern for you all. If any extra assistance is needed, feel free to send us a private message in reference to this thread. I look forward to hearing from all of you!

Kristen A.
GM Customer Care

 

[davidajcks]

A/C Problems and irate passengers

Our 2015 Tahoe had a problem with the A/C shortly after we bought it. The loaner when we took it in was also a 2015 Tahoe, and the A/C didn't work in it either. We just went on a trip and the back of the car could only get hot air, and the problem didn't fix itself. Is there any new news on what the problem could be?

 

[sharper4]

I wish there was news on the actual problem. My wife's Tahoe had the problem which her dealer said they fixed but mine did the exact same thing this weekend. It was 102* outside so the inside was steaming hot! Having hot air blown on me was less than enjoyable.

 

[Tahoe14]

I am having the same problem 2015 Tahoe LTZ. Did the Dealer say what they did to your wife's Tahoe? I could share that info with my Dealer. Thanks.

 

[Fireman]

My 2015 Tahoe does the same thing. Took it in and they could not duplicate the problem. When I was ready to leave, the service rep found a few service bulletins for new specs on the Freon pressure, they are lower now. There was also a connection that needed to be checked . And there was one about the rear air also. So now I have to go back next week and have them check it again because I had to leave that day.

 

[sevTahoe]

UPDATE: 7000 miles now and hasn't happened again for almost 11 weeks (fixed itself?). This weekend will be the ultimate test as I'll be in 100 degree+ weather. I have my first service appointment coming up next week. I'll update on what the dealer says on the issue.

 

[sevTahoe]

Sooooooo, guess what? In 100+ temps now and it's happened 3 times in one hour!

 

[GM Customer Service]

Oh no, sevTahoe! I understand that this can be frustrating and an inconvenience when the temperature reaches over hundred. You mentioned that you are planning to visit your local dealership regarding this concern. I would be happy to reach out to your dealership prior to your appointment to ensure that we are utilizing all of our resources to resolve this air condition issue. Feel free to contact us anytime!

Jennifer T.
GM Customer Care

 

[Tahoe14]

Did anyone have luck getting their AC fixed. Mine has been in once already(diagnosed as over charged system) and getting ready to take it in again after contacting GM Customer Service. My issues: If I change the temperature setting or the auto setting to manual it takes approx. thirty minutes for the system to start blowing cold air again. Had a complete AC power failure a couple of days ago. Had to turn the Tahoe completely off, open the door and then restart to get the system to re-engage. The steering wheel is making a squeaking noise and on a trip from Florida to Tennesee the Nav was inacurate as far as destination time and miles to arrival point, got a picture of that one and wished I would have taken one of the AC failure. Very disappointed so far. Don't have much faith in getting the AC issues repaired. We shall see. If not further action will be taken especially considering the cost of this vehicle.

 

[Fireman]

Well I took the Tahoe in for the second time and after 8 hours, they said everything checked out OK as per the Service Bulletins Chevy has out for the A/C. I think one of the bulletins was to remove the Freon and replace it and while doing so, they broke the Ac completely. They replaced an expansion valve that caused the total failure and basically wished me luck..... Well.... 2 hours after I got home I went to go drive and it was blowing hot air for 5 to 7 minutes again. This time was a little different though. I stopped at 3 consecutive red lights and when stopped the AC would start to cool but got warm again as I drove. I don't know if I even want to take it back again. Fall starts today, But in live in Florida and it doesn't start cooling off until November. Maybe Chevy will have it figured out by next Summer.

 

[Fireman]

OK, on my third try, the Chevy dealer kept my truck for a week and got me a rental. After they talked to GM they have discovered that there are pieces of metal in the Freon system from the assembly line. This is clogging different components that is causing the Freon pressure to get to high so the computer shuts the compressor off. The dealer replaced several AC components that were shipped from GM and placed an inline filter that is not part of original design. It's still warm down here in Florida and I just got my truck back today. I will post again should this not resolve the problem.

 

[Tahoe14]

Fireman, Thank you for your post and I will bring it to the attention of my Service Department. I also live in Florida. They did change the freon pressure in my Tahoe for a second time as a new Bulletin came out about two weeks after they did it the first time with a different pressure setting. GM just can't seem to make up their mind about the freon pressure. I have stayed in constant contact with GM Customer Service and have a case number assigned. We shall see.

 

[GM Customer Service]

Hello Everyone,

I just wanted to reach out and let you know we should be receiving more information regarding this issue soon. Keep an look at for our next post.

Thank you,

Jennifer T.
GM customer Care

 

[Tahoe14]

Jennifer, I hope you have good news for us. Thanks.

 

[Tahoe14]

Well I just had another bad experience with the AC. It was really wacked out on Monday. It was set on auto 74 degrees and 90 degrees outside. It would blow cool air for about a minute from the front vents at full fan speed, then the fan speed would back down to low with warm air and then switch to full fan speed and the air would blow cool air from the vents at your feet with just a trickle of warm air coming from the front vents then it would start the process all over again. This continued for about 30 minutes during my drive to the Dealer and about 30 more minutes with the service adviser in the vehicle. No cold air at anytime during that hour. Diagnosis: operating as designed. Are you kidding me.