A/C blows warm or the compressor fails

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 the this problem covers the 2015 model year as of Sep 9, 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.

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

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 43 reports
• Engine stalls or loses power while driving 40 reports
• Airbag warning light or recall 37 reports
• Infotainment, screen or backup camera fails 33 reports
• Transmission shudders, slips or shifts hard 32 reports