Air conditioning, front, automatic electronic climate control

Years 1998–02, 2015–17, 2019, 2021–22, 2027 Models 8 Factory citations 25

Also described as Air conditioning, single zone, automatic climate controlAir conditioning, front, automatic electronic controlsAir conditioning, automatic climate controlAir conditioning, single-zone automatic climate controlHVAC system, air conditioner, front, automatic, electronic controls

Also documented for Buick Cadillac Chevrolet Oldsmobile Pontiac Saturn

Documented applications

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

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

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

Jimmy — second generation (1995–2001)

1998–2001 Disputed

The 1998–2000 lists read automatic controls; the 2001 list reads manual controls, electronic

GM factory document — 1998 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 1999 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2000 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2001 gmc jimmy 4wd rpo code list, p.1.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro: S; AT4, Elevation, AT4X, Denali, Denali Ultimate: not offered

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.1.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra — GMT800 (1999–2007)

1999–2001 Factory-verified

GM factory document — 1999 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2001 Factory-verified

GM factory document — 2001 gmc gmc c sierra 2wd rpo code list, p.1.

Sonoma — second generation (1994–2004)

1998–2002 Disputed

The 1998–2000 lists read automatic controls; the 2001 list reads manual controls, electronic. The 2002 list reads as the 2001 list.

GM factory document — 1998 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 1999 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2001 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2002 gmc sonoma pickup 4wd rpo code list, p.1.

Terrain — First generation (2010–2017)

2016–2017 Factory-verified

SL, SLE-1: 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.

Yukon — GMT800 (2000–2006)

2000–2002 Factory-verified

GM factory document — 2000 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2001 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2002 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of C68 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.