2014 GMC Sierra 1500 AC / heater problems: A/C condenser leaking

A/C Condenser Leaking

2014 GMC Sierra 1500 (Page 1 of 2)

This problem may be covered under warranty. Ask your GMC dealer.


pretty bad
Typical Repair Cost:
Average Mileage:
63,750 miles
Total Complaints:
34 complaints

Most Common Solutions:

  1. replace condenser (30 reports)
  2. not sure (4 reports)
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2014 GMC Sierra 1500 AC / heater problems

AC / heater problem

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2014 GMC Sierra 1500 Owner Comments (Page 1 of 2)

problem #34

Feb 272020

Sierra 1500 Denali 6.2L

  • Automatic transmission
  • 75,400 miles


Add me to the long list of GMC Sierra owners with a defective A/C condenser unit. As other complaints state you can see the staining from the leak at an upper weld location of the condenser. I would classify this as a manufacturing issue as my 1998 GMC has not developed the same issue with many more miles

- Tony M., Matthews, US

problem #33

Jun 142019

Sierra 1500 SLE 5.3L

  • Automatic transmission
  • 72,000 miles

AC stopped blowing cold air in June 2019. I was buying freon each week to refill and finally took it to a good mechanic. He diagnosed and also helped point me in the right direction for the class action law suit. I tried contacting GM customer care and they don't care. I was offered a $100 service voucher and that just covers the service department diagnostics fee. Talked to the "one level up" person and it was terrible. He had no confidence in GM doing anything. GM needs to step up and fix the issue, and get customer care people that believe in their company.

I have been buying GM products all my life and now question my loyalty based on their loyalty to me. Looks like I will have my local mechanic in Greensboro NC repair the AC system. At least he will do the job right.

- Patrick G., Hillsborough, NC, US

problem #32

Jun 102019

Sierra 1500 SLT 5.3L V8

  • Automatic transmission
  • 69,782 miles

We were on a family trip. it was 103 degrees outside. We got in the truck and turn on the a/c but it was blowing hot air. I charged the truck with freon and it started blowing cold air. A week later it happened again. This happened 4 times. I took the truck to the dealership and I was told the a/c condenser was leaking and need a new a/c condenser. I asked how much it would cost to replace the a/c condenser. Parts and labor $1300.00 plus tax.It's funny that the dealership says it takes 7 hours but other repair shops said it takes 2-3 hours to replace the a/c condenser. I have owned chevy and gmc trucks since 1976 and never had to replace an a/c condenser in any of my vehicles. Faulty a/c condenser should be on the Recall list. General Motors needs to fix this problem.

- Terry S., Abilene, TX, US

problem #31

May 012019

Sierra 1500 TK 5.2L V8

  • Automatic transmission
  • 59,000 miles


Air conditioner suddenly blows hot air. Out of warranty, our mechanic says it's over $1000 to fix. He recharges it and it works about an hour. We live in Florida, I have multiple sclerosis, which is made worse by heat, therefore I cannot be in this truck at all during the warm weather. It seems like an issue that GM is aware of. They should step up and fix the issue. May have to trade it or sell, then GMC will lose our future business. Hope I don't get sick because of it .

- Terri K., Chattahoochee, FL, US

problem #30

Nov 292018

Sierra 1500 Denali 6.2L

  • Automatic transmission
  • 69,860 miles

I have a 2014 GMC Sierra Denali with 69000 miles the AC condenser is leaking at the welds and it is a known GM problem. After calling customer service they offered no help to fix the problem. $800.00 later I had to fix. This will be my last GMC truck. And they wonder why they're having layoffs? Poor Customer service will come back after time and more people are buying other brands.

- Mark M., Cedar Park, US

problem #29

Jul 212018

Sierra 1500 Denali 6.2L

  • Automatic transmission
  • 70,000 miles

A/C stopped working at 70,000 miles. AC condenser had to be replaced. All has been normal since.

- smokinu454, Cadiz, US

problem #28

Oct 082016

Sierra 1500 Texas Edition 5.3L

  • Automatic transmission
  • 51,977 miles


I bought my 2014 GMC Sierra 1500 Texas Edition certified pre-owned with 3,500 miles. When the A/C quit working they told me the condenser was leaking and needed to be replaced. They said it looked like a rock hit it. This was at 53,844 miles.

Now get this! My A/C quit working again 2yrs later with 118,404 miles. They told me again it looked like a rock it, are you kidding me. What crap!

GMC should be taking care of this problem. My friend also bought a 2014 GMC Sierra new off the lot a couple of month before I did and his condenser has gone out 2 times as well.

- davidray31, Allen, US

problem #27

Jun 012017

Sierra 1500 SLT 5.3L

  • Automatic transmission
  • 45,000 miles

Dealer said out of warranty, $1500 to fix. I had an outside garage do it for $724.00. Should have been covered.

- Christopher B., Wiscasset, US

problem #26

Jul 132018

Sierra 1500 SLT 5.3L V8

  • Automatic transmission
  • 51,700 miles

Just adding my truck to the list of others that have experienced this issue. The condenser should not have to be replaced at 50,000+ miles.

- Brian H., Keizer, OR, US

problem #25

Oct 012018

Sierra 1500 Texas Edition 5.3L

  • Automatic transmission
  • 118,404 miles

2nd time the condenser has gone out on my GMC Sierra 1500. 2nd time they told me it looked like a rock hit it and caused the damage. What crap!

- davidray31, Allen, US

problem #24

Aug 272018

Sierra 1500 SLT 5.3L

  • Automatic transmission
  • 85,252 miles


2014 vehicle would ensure at least 4 years of operation without major repair needed. Unfortunately, GMC has known about the issue with leaking AC condenser on this model but will not warranty the replacement. Since GMC won’t replace the unit, GMC will not be chosen as a replacement for my next vehicle purchase in August.

- Greg D., Coldwater, US

problem #23

May 012018

Sierra 1500 SLT 5.3L V8

  • Automatic transmission
  • 89,100 miles

You would think spending $52,000 on a vehicle would ensure at least 3 1/2 years of operation without major repair needed. Unfortunately, GMC has known about the issue with leaking AC condenser on this model but will not warranty the replacement. Since GMC won’t replace the unit, GMC will not be chosen as a replacement for my next vehicle purchase in August.

- Nick L., Olive Branch, US

problem #22

Jun 102018

Sierra 1500

  • Automatic transmission
  • 67,000 miles

Real bad. Why doesn't GMC do a recall? It is really horrible. I had 3 GMC's and maybe no more They need to do a recall. Condensers shouldn’t leak. It cost me just today $1300, I pick up tomorrow hope it is fixed. But really hope GMC does the right thing and recalls. I saw a lot of people have the same problem. I want my hard earned money back.

- Eugene L., Richboro, PA, US

problem #21

May 262018

Sierra 1500 SLE 5.3L V8

  • Automatic transmission
  • 48,000 miles

AC stopped working and is no longer under the warranty. Take to dealership, cost is $1,200. Contacting to GMC Customer Assistance took three days. There is no AC in my truck and is summer. I think in AC system in a vehicle should last longer the 48,000 miles, the life of the AC system is absolutely independent of miles on the engine. GM GOOD JOB!!!!!! @#%$

- Jesus G., Lincoln Park, US

problem #20

Apr 252018

Sierra 1500 SLT 5.3L

  • Automatic transmission
  • 45,000 miles

Bought the truck in the winter, didn't realize the A/C didn't work until it warmed up.

- Nate E., South Windsor, US

problem #19

Apr 022018

Sierra 1500 SLE 5.3L

  • Automatic transmission
  • 79,000 miles

So my condenser and hoses recently needed to be replaced. The problem was evident when the AC failed and started blowing hot air. I initially didn't think much of it, but when I started researching this issue online I discovered it was more of a trend than an anomaly.

I have reached out to GMC - 1-800-462-8782 and explained to them that I recently experienced a problem with my air conditioner and it is currently at at GMC dealer getting the condenser and hoses replaced. I further explained that this is a common theme about 2014 GMC 1500 Sierra truck owners, and there was a gentlemen in NC that made a very strong case for GMC to replace, and that he had went through the hoopla of calling GMC, BBB, and NC State Attorney General, and was FINALLY able to get reimbursed for the repairs. I am currently waiting on a GMC supervisor to call me back. I will update on the outcome once they reach out to me.

Please note, thanks to the Gentlemen in NC, NBC Chicago affiliated station ran a story on this:


From article:

GM confirms the models affected include the Chevrolet Silverado, Tahoe and Suburban; GMC Sierra, Yukon and Yukon XL; and Cadillac Escalade and Escalade ESV, but did not specify which model years. The complaints we saw were mostly about 2014-2015 models.

- Jeramie M., Midland, TX, US

problem #18

Apr 012018

Sierra 1500 Denali 6.2L V8

  • Automatic transmission
  • 38,884 miles

The dealer called and stated that my AC condenser had indeed failed and this was after they told me it was most likely the condenser but would need to charge me $99 to have a diagnostic to confirm what they already knew to be the problem. They have the part in stock and can have me up and running in a day. That said I find it unacceptable that a truck that is just over 3 years old and has under 39,000 miles on it would need to have this non moving part repaired so soon. My parents '72 Chevy still blows as cold as the day they bought it new. Our 2005 GMC Envoy Denali with over 120,000 miles is equally as cold. Based on the feedback within this site and many others GM needs to deal with and fix the issue. There is no excuse for this type of issue on a such a young vehicle. I'm not a happy GMC owner today.

- tyronc, Edgewood, US

problem #17

Apr 182018

Sierra 1500 SLE 4.6L V8

  • Automatic transmission
  • 53,000 miles

AC quit after owning vehicle 3 years and dealership just told me that the condenser has to be replaced because all the freon is gone. My customer service rep said that this is an ongoing issue that they are dealing with in 2014-2017 Sierras and that GMC covered and extended the warranty on 2016 and 2017 models but not 2014/2015. Same service department rep told me that they had seen 2015's with the exact same issue. It's apparent that they know 2014-2015 have the same issue but are ignoring this. $1400!

- Brad Y., Columbia, MO, US

problem #16

Mar 122018

Sierra 1500

  • Automatic transmission
  • 85,000 miles

2014 GMC 1500 condenser leaking and will have to pay out of pocket. Sh*tty brand never buying another and will be sure to tell anyone who listens the same.

- tzimmer1, Richmond, US

problem #15

Feb 172018

Sierra 1500 SLT 5.3L

  • Automatic transmission
  • 75,000 miles

2014-2015 GMC Sierras were produced with a known faulty A/C condenser with a bad weld that causes an A/C system leak requiring replacement. There has been an overwhelming failure of the product across the country, so bad to even make NBC news. GM became aware of this issue and sent new (properly produced) condensers to their production lines first, leaving hundreds of GMC owners without A/C over the summer. They put out a "special recall" on a very small number of VINs saying it "may" happen in other VINs. There is an overwhelming volume of complaints online (to include myself) to where GM is acknowledging this issue but refusing to cover the replacement cost of their faulty part for hundreds of owners having this issue. The replacement cost of this faulty part for my vehicle was $1,338.61 at the GMC dealership. I've opened a case with GMC, but their response was: "it may happen with my VIN but they will not cover the replacement" even though I have confirmed that this was in fact the issue with my vehicle as well as hundreds of other owners across the country. See many links to this issue below:

https://www.nbcchicago.com/news/local/gm-air-conditioning-responds-439572983.html https://www.consumerclasslawyersblog.com/2017/08/01/bunch-hot-air-ac-gmc-chevy-trucks-simply-not-work/ http://www.radiatorhelpline.com/2017/06/2014-2017-chevy-gm-condenser-widespread-failure.html http://www.silveradosierra.com/climate-control/2014-silverado-ac-not-blowing-cold-t414162.html http://www.gm-trucks.com/forums/topic/191160-2014-sierra-ac-leaking/ http://www.gm-trucks.com/forums/topic/200888-ac-condenser/ https://www.torquenews.com/3768/owners-2014-chevrolet-silverados-are-furious-they-cant-get-their-ac-fixed

I strongly suggest that anyone with this issue (past or present) file a complaint so we can hold GM accountable for this issue. I have filed official complaints through the below institutions. Please do the same:

General Motors Company 800-462-8782

Better Business Bureau 919-277-4222 https://www.bbb.org/consumer-complaints/file-a-complaint/nature-of-complaint/

National Highway Traffic Safety Administration 888-327-4236 https://www-odi.nhtsa.dot.gov/VehicleComplaint/

Federal Trade Commission 877-382-4357 https://www.ftccomplaintassistant.gov/GettingStarted?NextQID=231&Url=%23%26panel1-9#crnt

NC State Attorney General's Office 877-566-7226 http://www.ncdoj.gov/getdoc/59be4357-41f3-4377-b10f-3e8bd532da5f/Complaint-Form.aspx

Update from Mar 7, 2018: Update (three weeks from my original post): The Better Business Bureau was unable to file my case due to the mileage on my vehicle, however, GM was contacted by the NC State Attorney General's Office on my behalf following my complaint. I received a call from the legal department at GM stating that they would review my case and get back to me within a week. To my amazement, they actually called me back in a week and said they would reimburse me for the full cost of the repair (nearly $1,400). That seems to be the way to go. I suggest those of you that are having this issue go the same route. With enough complaints, they will have to just issue a recall. Good luck to you all and may justice prevail.

- MJ C., Jacksonville, NC, US

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