BD4 ✓ Factory-verified

Buick · Regular Production Option

Modification, noise control, not installed

Years 2006 Models 1 Factory citations 1

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Documented applications

Rendezvous — U-body / GMT257 (2002–2007) →

• 2006 ✓ Factory-verified internal
  ⛭ GM factory document — 2006 buick rendezvous awd rpo code list, p.1.

This page aggregates every documented appearance of BD4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.