Four-wheel steering (Quadrasteer)

Years 2002–06, 2025–27 Models 5 Factory citations 30

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Also described as Steering, four wheelSteering, active rear, four-wheel steer

Also documented for Cadillac GMC

Documented applications

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.54.
GM Heritage factory kit — 2005 Chevrolet Avalanche, p.33.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

2025: S in 2SP, 3SP; not offered in 2WT, 5WT, 8WT, 3LT; 2026: S in 2TR, 3TR, 2SP, 3SP; not offered in 4WT, 5WT, 8WT, 2LT, 3LT, 4LT; 2027: S in 2TR, 3TR; not offered in 4WT, 5WT, 8WT, 2LT, 3LT; 2025: included with SWS; 2026: included with SWS; Sierra EV reads "Steering, electronic, 4 wheel, with CrabWalk diagonal-drive functionality at low speeds"

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.11.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.15.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.14.

Silverado — GMT800 (1999–2007)

2002–2006 Factory-verified

GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Silverado, p.46.
GM Heritage factory kit — 2005 Chevrolet Silverado 1500HD, p.128.
GM Heritage factory kit — 2006 Chevrolet Silverado, p.260.

Silverado HD — GMT800 (2001–2007)

2002–2005 Factory-verified

GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.

Suburban — GMT800 (2000–2006)

2002–2006 Factory-verified

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 — 2002 Chevrolet Suburban, p.37.
GM Heritage factory kit — 2003 Chevrolet Suburban, p.39.
GM Heritage factory kit — 2004 Chevrolet Suburban, p.41.
GM Heritage factory kit — 2005 Chevrolet Suburban, p.147.

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