Head restraints, front seats

Years 1963–79, 2025–27 Models 5 Factory citations 15

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Also described as HeadrestsPackage, Active Safety 2Package, assisted drivingAssisted Driving Package

Also documented for Cadillac GMC

Documented applications

Camaro

1967–1968 Factory-verified

67 total = bucket seats

GM Heritage factory kit — 1967 Chevrolet Camaro, p.57.
GM Heritage factory kit — 1968 Chevrolet Camaro, p.21.

Impala / Full-Size

1963–70s (varies) Confirmed

Special contour-strato

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

includes UKK, UV2, UVX; 2025–2027: S in LT 2 (included with ZL3 or 6K5); S in RS; A in LT 1 (requires Y19)

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.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.1.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

the 2025 guide prints "Safety Package 2"; includes UGN, UVZ, UFB, CTB, UKK, HS1, UOW, UVX, UV2, KSG

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 U12, UCV, UV2, UVX

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.16.

This page aggregates every documented appearance of AS2 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.