Q9S ● Confirmed

Buick · Regular Production Option

Wheels, 19 x 8.5, 10-spoke, machined alloy

Years 2011 Models 1

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Documented applications

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

• 2011 ● Confirmed

  deleted for 2012 (GM's 2012 list)

This page aggregates every documented appearance of Q9S in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.