Steering, four wheel

Years 2002–06, 2017–19, 2025–27 Models 5 Factory citations 11

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Also described as Steering, active rear4-Wheel Steer, active rear steerActive rear steering

Also documented for Chevrolet GMC

Documented applications

CT6 — Omega (2016–2020)

2017–2019 Factory-verified

Luxury 3.6L, Premium Luxury: O; included with F55 and only with it; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents)

GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4.
GM factory document — 2018 cadillac ct6 order guide copy gm authority, p.59, p.61.
GM factory document — 2019 cadillac ct6 order guide copy gm authority, p.53, p.55.

Escalade EXT — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade ext rpo code list, p.1.
GM factory document — 2006 cadillac escalade ext rpo code list, p.1.

Escalade — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade 2wd rpo code list, p.1.
GM factory document — 2006 cadillac escalade rpo code list, p.1.

Escalade IQ — Ultium BEV (2025–2027)

2025–2027 Factory-verified

GM factory document — 2025 cadillac all electric escalade iq fleet order guide rpo codes, p.1.
GM factory document — 2027 cadillac all electric escalade iql fleet order guide rpo codes, p.1.

Vistiq — BEV3 (2026–2027)

2026–2027 Factory-verified

Premium Luxury, Platinum: S

GM factory document — 2026 cadillac all electric vistiq fleet order guide, p.55.
GM factory document — 2027 cadillac all electric vistiq fleet order guide, p.55.

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