Air conditioning, single-zone

Years 2007–09, 2014–27 Models 11 Factory citations 48

Also described as HVAC system, air conditioner front, electronic controlsAir conditioning, single-zone manual front climate controlAir conditioning, single zone, manual climate controlAir conditioning, single-zone manualHVAC system, air conditioner, front, electronic controlsAir conditioning, single zone

Also documented for Buick Chevrolet Oldsmobile Pontiac Saturn

Documented applications

Acadia — first generation, Lambda (2007–2017)

2007–2009 Factory-verified

GM factory document — 2007 gmc acadia 2wd rpo code list, p.1.
GM factory document — 2008 gmc acadia 2wd rpo code list, p.1.
GM factory document — 2009 gmc acadia 2wd rpo code list, p.1.
2014–2016 Factory-verified

the 2007–2009 lists read front air conditioning with electronic controls; the guides say CJ2 replaces it when U42 is ordered.

GM factory document — 2014 gmc acadia fleet order guide wayback, p.2.
GM factory document — 2015 gmc acadia fleet order guide wayback, p.2.
GM factory document — 2016 gmc acadia fleet order guide wayback, p.2.

Canyon — Second generation (GMT31XX) (2015–2022)

2015–2017, 2019, 2021–2022 Factory-verified

2015–2016: SL, Canyon, SLE: S; SLT: not offered; 2021: Elevation Standard: S; Elevation, AT4, Denali: not offered

GM factory document — 2015 gmc canyon fleet order guide wayback, p.2.
GM factory document — 2016 gmc canyon fleet order guide wayback, p.5.
GM factory document — 2017 chevrolet canyon colorado electrical body builders manual service manual 2017 en us, p.9.
GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.9.
GM factory document — 2021 gmc canyon fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.10.

Canyon — Third generation (VSS-T) (2023–2027)

2023–2027 Factory-verified

2025: Elevation: S; AT4, Denali: not offered; 2026–2027: Elevation: S; AT4, AT4X, Denali: not offered

GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.10.
GM factory document — 2024 gmc canyon fleet order guide wayback, p.1.
GM factory document — 2025 gmc canyon fleet order guide, p.1.
GM factory document — 2026 gmc canyon fleet order guide, p.1.
GM factory document — 2027 gmc canyon fleet order guide, p.1.

Sierra — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2009, 2014 Factory-verified

the 2014 guides describe single-zone manual air conditioning

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.
GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2014 gmc sierra 3500hd fleet order guide wayback, p.2.

Sierra HD — K2XX (2015–2019)

2015, 2018–2019 Factory-verified

2015 marks: Sierra, SLE: S; SLT: not offered; 2018: GM's 2018 Sierra 2500HD order guide

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2019 gmc sierra 2500hd fleet order guide wayback, p.1.
GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.1.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

Pro, SLE: S; SLT, AT4, AT4X, Denali, Denali Ultimate: not offered

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.1.

Sierra — K2XX (2014–2019)

2014, 2016–2019 Factory-verified

GM factory document — 2014 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.15.
GM factory document — 2018 gmc sierra 1500 order guide copy gm authority, p.88.
GM factory document — 2019 gmc sierra 1500 limited double cab k2xx order guide copy gm authority, p.39.

Sierra — T1XX (2019–2026)

2019–2020, 2022–2026 Factory-verified

the upfitter lists read "HVAC system, air conditioner front, electronic controls"

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.10.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.11.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.11.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.10.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.12.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.10.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Terrain — First generation (2010–2017)

2016–2017 Factory-verified

SLE-2, SLT, Denali: not available

GM factory document — 2016 gmc terrain fleet order guide wayback, p.2.
GM factory document — 2017 gmc terrain fleet order guide wayback, p.2.

Terrain — Third generation (2025–2027)

2025–2027 Factory-verified

S: Elevation; not offered: AT4, Denali

GM factory document — 2025 gmc next generation terrain fleet order guide, p.1.
GM factory document — 2026 gmc next generation terrain fleet order guide, p.2.
GM factory document — 2027 gmc terrain fleet order guide, p.2.

This page aggregates every documented appearance of C67 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.