Seat, rear

Years 1967–99, 2001–09, 2014, 2025–27 Models 12 Factory citations 77

Also described as Rear seatCrew cab equipment (73–87 list); "rear seat, Suburban/utility" in GM listsBody, crew cabPackage, Active Safety 3Package, Super CruiseSuper Cruise PackageSeat, rear, SuburbanSeat, rear, Suburban/utilitySeats, center and rearSeat, rear, utility

Also documented for Cadillac GMC Hummer

Documented applications

C/K Trucks

1967–72 Confirmed

Suburban, Blazer; code reused 1973+ for crew-cab equipment
1973–82 Disputed

Reused code — see 67–72

Avalanche — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet avalanche 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Avalanche, p.52.
GM Heritage factory kit — 2003 Chevrolet Avalanche, p.34.
GM Heritage factory kit — 2004 Chevrolet Avalanche, p.32.
GM Heritage factory kit — 2005 Chevrolet Avalanche, p.31.

C/K pickup — Square body (1983–1991)

1983–1987, 1991 Factory-verified

the kits print it with E63 as the crew cab body ordering code; GM later used AS3 for a rear seat on other trucks; 1991 from the 1991 truck-camper page, which prints the R/V 3500 bonus and crew cab models (R/V30943)

GM Heritage factory kit — 1983 Chevrolet Truck, p.4.
GM Heritage factory kit — 1984 Chevrolet Truck, p.34.
GM Heritage factory kit — 1985 Chevrolet Truck, p.33.
GM Heritage factory kit — 1986 Chevrolet Truck, p.169.
GM Heritage factory kit — 1987 Chevrolet Truck, p.48.
GM Heritage factory kit — 1991 Chevrolet Truck, p.64.

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

includes UKZ, UKL, ULM, UQA; 2025–2027: A in LT 2, RS (requires AS2 or 6K5); not offered in LT 1

GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide, p.11.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.9.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.9.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

the 2025 guide prints "Safety Package 3"; includes UKZ, ULM, UKL; 2025: S in 2SP, 3SP; A in 3LT; not offered in 2WT, 5WT, 8WT; 2026: S in 4LT, 3TR, 2SP, 3SP; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2027: S in 3TR; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2025: included and only available with XTF; 2026–2027: included and only available with SW4

GM factory document — 2025 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet silverado ev fleet order guide, p.1.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.1.

Silverado 1500 — Fifth generation (2027)

2027 Factory-verified

includes UKL, ULM

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

Suburban — GMT400 (1992–1999)

1992–1999 Factory-verified

GM Heritage factory kit — 1992 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1993 Chevrolet Suburban, p.11.
GM Heritage factory kit — 1994 Chevrolet Suburban, p.9.
GM Heritage factory kit — 1995 Chevrolet Suburban, p.13.
GM Heritage factory kit — 1996 Chevrolet Suburban, p.7.
GM Heritage factory kit — 1997 Chevrolet Suburban, p.13.
GM factory document — 1998 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet chevy suburban 2wd rpo code list, p.1.

Suburban — GMT800 (2000–2006)

2001–2006 Factory-verified

GM factory document — 2001 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Suburban, p.49.
GM Heritage factory kit — 2002 Chevrolet Suburban, p.35.
GM Heritage factory kit — 2003 Chevrolet Suburban, p.37.
GM Heritage factory kit — 2004 Chevrolet Suburban, p.39.
GM Heritage factory kit — 2005 Chevrolet Suburban, p.138.

Suburban — GMT900 (2007–2014)

2007–2009, 2014 Factory-verified

The 2014 guide words it as a third row 50/50 split-bench seat, 3-passenger, removable, all-belts-to-seat. Trim marks in the 2014 guide: LS, LT, LTZ: S.

GM factory document — 2007 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2014 chevrolet suburban fleet order guide wayback, p.2.
GM Heritage factory kit — 2007 Chevrolet Suburban, p.32, p.159.

Suburban — Square body (1983–1991)

1983–1991 Factory-verified

non-adjustable folding center seat with a quick release removable rear seat; includes AT5; the C/K square-body pickup doc reads AS3 from the pickup kits as the crew cab body code; 1988 from the seat trim price lines with AS3

GM Heritage factory kit — 1983 Chevrolet Suburban, p.18.
GM Heritage factory kit — 1984 Chevrolet Suburban, p.23.
GM Heritage factory kit — 1985 Chevrolet Suburban, p.20.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.21.
GM Heritage factory kit — 1987 Chevrolet Suburban, p.26.
GM Heritage factory kit — 1988 Chevrolet Suburban, p.15.
GM Heritage factory kit — 1989 Chevrolet Suburban, p.17.
GM Heritage factory kit — 1990 Chevrolet Suburban, p.19.
GM Heritage factory kit — 1991 Chevrolet Suburban, p.19.

Tahoe — GMT800 (2000–2006)

2001–2006 Factory-verified

GM factory document — 2001 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Tahoe, p.42.
GM Heritage factory kit — 2002 Chevrolet Tahoe, p.28.
GM Heritage factory kit — 2003 Chevrolet Tahoe, p.158.
GM Heritage factory kit — 2004 Chevrolet Tahoe, p.31.
GM Heritage factory kit — 2005 Chevrolet Tahoe, p.114.
GM Heritage factory kit — 2006 Chevrolet Tahoe, p.25.

Tahoe — GMT900 (2007–2014)

2007–2009 Factory-verified

The 2007 and 2008 lists word it as Suburban/Utility; the 2009 list reads Utility. The merged suburban-gmt900 doc reads it Seat, rear, Suburban/utility. The kit's order-guide pages describe it as the third row 50/50 seat, 3-passenger.

GM factory document — 2007 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Tahoe, p.26, p.136.

This page aggregates every documented appearance of AS3 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.