RTI ✓ Factory-verified

Buick · Regular Production Option

Wheel, spare, 18 x 4.5 inch (45.7 cm x 11.4 cm) steel

Years 2018, 2022–23, 2025–27 Models 2 Factory citations 6

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Also described as Wheel, spare, 18" x 4.5" (45.7 cm x 11.4 cm) steel

Also documented for CadillacChevroletGMC

Documented applications

Enclave — C1XX (2018–2024) →

• 2018, 2022–2023 ✓ Factory-verified

  S on all trims

  ⛭ GM factory document — 2018 buick enclave fleet order guide wayback, p.1.

  ⛭ GM factory document — 2022 buick enclave order guide copy nhtsa docket, p.8, p.29.

  ⛭ GM factory document — 2023 buick enclave order guide copy autoevolution wayback, p.7, p.27.

Enclave — VSS-S (2025–2027) →

• 2025–2027 ✓ Factory-verified

  S on all trims

  ⛭ GM factory document — 2025 buick all new enclave fleet order guide, p.7.

  ⛭ GM factory document — 2026 buick enclave fleet order guide, p.7.

  ⛭ GM factory document — 2027 buick enclave fleet order guide, p.8.

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