TB5 ✓ Factory-verified

Buick · Regular Production Option

Liftgate, power

Years 2009, 2025–27 Models 3 Factory citations 8

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Also described as Body equipment, lift gate, power

Also documented for CadillacChevroletGMCSaturn

Documented applications

Enclave — Lambda / GMT967 (2008–2017) →

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

Encore GX — VSS-F (2020–2027) →

• 2025–2027 ✓ Factory-verified

  Preferred, Sport Touring: O; 2027: requires the Y55 Comfort Package; also named by GM Authority

  ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.12.

  ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.13.

  ⛭ GM factory document — 2027 buick encore gx fleet order guide, p.12.

Envista — VSS-F (2024–2027) →

• 2025–2026 ✓ Factory-verified

  Preferred, Sport Touring: O; Avenir: S

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

  ⛭ GM factory document — 2025 buick envista fleet order guide, p.5.

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

  ⛭ GM factory document — 2026 buick envista fleet order guide, p.5.

Related codes · mentioned in these notes

Y55

This page aggregates every documented appearance of TB5 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.