AY1 ✓ Factory-verified

Buick · Regular Production Option

Restraint system, seat, inflatable, driver and passenger, roof side

Years 2005–09 Models 1 Factory citations 3

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Also documented for ChevroletPontiac

Documented applications

LaCrosse — W-body / GMX365 (2005–2009) →

• 2005–2009 ✓ Factory-verified
  ⛭ GM factory document — 2005 buick lacrosse rpo code list, p.1.

  ⛭ GM factory document — 2007 buick lacrosse rpo code list, p.1.

  ⛭ GM factory document — 2009 buick lacrosse rpo code list, p.1.

This page aggregates every documented appearance of AY1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.