2015 GMC Sierra 1500 · symptom sheet
A/C blows warm or the compressor fails
- 51owner reports
- 55,000median miles
- $800median quote
- 0involved a crash
Newest report Aug 31, 2026 · checked Oct 2, 2026
51 of the 719 complaints on this car describe A/C failure.
Tick what matches of 51 reports
A/C failure on other Sierra 1500 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What this problem usually is
Most A/C complaints start the same way: the fan still blows, but the air coming out of the vents is warm or only a little cool. Some owners get cold air that fades after a while, and others hear a noise from the compressor before it quits. It's rarely a safety problem on its own, which is also why it seldom gets a recall.
What got replaced
Owners who name the part that was replaced mention the condenser (30 reports) and the compressor (4 reports).
Recalls and investigations
No recall on this problem covers the 2015 model year as of Oct 2, 2026.
What owners paid
11 of the 51 reports quote a price. Each dot is one quote. The middle half runs $775 to $1,200.
When it happens
The middle half of failures fell between 44,000 and 75,000 miles, from the 39 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 11 service bulletins or notices for the 2015 GMC Sierra 1500 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
PI to help diagnose A/C concern
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio ...
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
This Preliminary Information communication provides information to the technician about vehicles that may have a service engine soon malfunction indicator lamp, antilock braking system malfunction indicator lamp, service suspension system message, misfire, ...
7 more on the 2015 GMC Sierra 1500 page.
What owners wrote
“When parking and turning the wheel the truck stalled, radio turned off and on, ac stopped working, battery reading dropped. Maybe an electrical issue since it happens continuously, while making turns at slow speeds the truck wants to turn off, lights dim then go back to normal.”
Filed Jul 16, 2025
“The body has rust coming through on the lower body panels by the rear doors of a crew cab. Have to replace the AC condenser on a 2015 gmc Denali. Looks like GMC already knows there is an issues with this, but no recall on the 6.2L sierra denalis.”
Filed May 15, 2023
“The A/C condenser is defective, one of the three welds it has is leaking due to lack of proper welding.”
Filed Feb 21, 2022
“Curtain air bags deployed after loosing traction a bit in the highway also causing seat belts to get locked. Acceleration pedal will get stuck at times. Needed to push brake pedal half ways or more for brakes to kick in. GM brake recall seems to have fixed that. A/C condenser and compressor continue to fail.”
Filed Aug 31, 2021
Should you keep driving it?
This page can't tell you that. 0 of 51 reports involved a crash and 2 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Brakes grind, pulse or wear early 229 reports
- Headlights too dim or fail 83 reports
- Power steering cuts out or goes heavy 44 reports
- Engine stalls or loses power while driving 40 reports
- Airbag warning light or recall 37 reports
- Transmission shudders, slips or shifts hard 33 reports
- Infotainment, screen or backup camera fails 33 reports