Airbags, frontal and seat-mounted side-impact for driver and front passenger, roof rail-mounted head-curtain for all outboard seating positions, passenger sensing system for front passenger

Years 2006–09, 2016, 2025–26 Models 4 Factory citations 9

Also described as Restraint system, seat, inflatable, driver and passenger front, seat side, roof sideRestraint system, seat, inflatable, driver and passenger, front and side, roof sideAir bags, dual-stage frontal and side-impact, driver and front passenger, head curtain side-impact for front and rear outboard seats

Also documented for Cadillac Chevrolet GMC Pontiac Saturn

Documented applications

Enclave — Lambda / GMT967 (2008–2017)

2008–2009 Factory-verified

the 2008 list prints driver and passenger, front and side, roof side.

GM factory document — 2008 buick enclave rpo code list, p.1.
GM factory document — 2009 buick enclave rpo code list, p.1.

Envista — VSS-F (2024–2027)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2025 buick envista fleet order guide, p.1.
GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.1.

Lucerne — G-body (2006–2011)

2006–2009 Factory-verified

The 2009 list words the restraint as front seat side and roof side.

GM factory document — 2006 buick lucerne rpo code list, p.1.
GM factory document — 2009 buick lucerne rpo code list, p.1.

Regal — Epsilon II, 5th gen (2011–2017)

2016 Factory-verified

2016: 1SV, 1SL, 1SN: S

GM factory document — 2016 buick regal order guide copy gm authority, p.1, p.14.

This page aggregates every documented appearance of AY0 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.