R13 ✓ Factory-verified

Buick · Regular Production Option

Appearance package, chrome exterior

Years 2005–07 Models 1 Factory citations 2

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Also documented for ChevroletGMCHummerPontiacSaturn

Documented applications

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

• 2005–2007 ✓ Factory-verified
  ⛭ GM factory document — 2005 buick lacrosse rpo code list, p.1.

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

This page aggregates every documented appearance of R13 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.