- 2002 Factory-verifiedGM Heritage factory kit — 2002 Chevrolet Avalanche, p.53.
Also described as HVAC system, air conditioner, front, automatic, electronic controlsAir conditioning, front, automatic electronic controlsAir conditioning, automatic climate controlAir conditioning, single zone, automatic climate controlHVAC system, air conditioning, electronic controlAir conditioning, single-zone automatic climate control, air filterHVAC system, air conditioner, front, automatic electronic controlsAir conditioning, front, automatic electronic climate control
Also documented for BuickCadillacGMCOldsmobilePontiacSaturn
Documented applications
- 2008 Factory-verified
the 2008 list reads full automatic temperature control;
- 2009 Factory-verified
- 2025–2027 Factory-verified
only in: Blazer EV, not the Police Package
- 1998–2003 Factory-verified
The 1998–2000 lists read automatic controls; the 2001 list reads manual controls, electronic
- 2017, 2023 Factory-verified
LT, Premier: S
- 2027 Factory-verified
LT, RS: S
- 2025–2026 Factory-verified
S;
- 2016, 2019, 2023 Factory-verified
- 2014 Factory-verified
2LS, 1LT, LTZ: S
- 2015–2019, 2021–2022 Factory-verified
2015: Z71: S; LT: O; Base, WT: not offered; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022
- 1985–1996 Factory-verified
the kit pages call it automatic air conditioning (1985–1986) and electronic control air conditioning
GM Heritage factory kit — 1985 Chevrolet Corvette, p.43.GM Heritage factory kit — 1986 Chevrolet Corvette, p.50.GM Heritage factory kit — 1987 Chevrolet Corvette, p.12.GM Heritage factory kit — 1988 Chevrolet Corvette, p.34.GM Heritage factory kit — 1989 Chevrolet Corvette, p.32.GM Heritage factory kit — 1990 Chevrolet Corvette, p.31.GM Heritage factory kit — 1991 Chevrolet Corvette, p.12.GM Heritage factory kit — 1992 Chevrolet Corvette, p.32.GM Heritage factory kit — 1993 Chevrolet Corvette, p.17.GM Heritage factory kit — 1994 Chevrolet Corvette, p.63.GM Heritage factory kit — 1995 Chevrolet Corvette, p.103.GM Heritage factory kit — 1996 Chevrolet Corvette, p.62.
- 2018–2019 Factory-verified
2018: sedan O: 1SF; hatch O: 1SF; 2019: sedan S: 1SD, 1SF; hatch S: 1SD, 1SF
- 2025–2027 Factory-verified
- 1998 Factory-verified
platform-list code; the Malibu 1997–1999 kit order guides do not show it.
- 2004–2007 Factory-verified
shared Epsilon code (Pontiac G6, Saturn Aura).
GM Heritage factory kit — 2004 Chevrolet Malibu, p.37.
- 2008–2009 Factory-verified
- 1998–2002 Factory-verified
The 1998–2000 lists read automatic controls; the 2001 list reads manual controls, electronic. The 2002 list reads as the 2001 list.
- 2027 Factory-verified
- 1999–2001 Factory-verified
- 2001 Factory-verifiedGM Heritage factory kit — 2001 Chevrolet Silverado HD, p.61.
- 2014 Factory-verified
1LT, 2LT: S
- 2000–2002 Factory-verifiedGM Heritage factory kit — 2000 Chevrolet Suburban, p.45.GM Heritage factory kit — 2002 Chevrolet Suburban, p.36.
- 2000–2002 Factory-verifiedGM Heritage factory kit — 2000 Chevrolet Tahoe, p.45.GM Heritage factory kit — 2001 Chevrolet Tahoe, p.43.GM Heritage factory kit — 2002 Chevrolet Tahoe, p.29.
- 2025–2027 Factory-verified
2025–2026: LT, RS, ACTIV: O; 2027: ACTIV: S; LT, RS: O; included in, and only available with, ZL3; includes ASV
- 2025–2026 Factory-verified
LT, 2RS, ACTIV: S; the Buick Envista guides print this code as single-zone automatic
- 2015 Factory-verified
Volt: S
- 2016–2018 Factory-verified
LT, Premier: S
This page aggregates every documented appearance of C68 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.