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

Years 2017–19, 2025–27 Models 2 Factory citations 6

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

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Second generation (C1XX) (2017–2023)

2017–2019 Factory-verified

2019 guide: SLE-1, SLE-2, SLT-1, SLT-2, Denali: S

GM factory document — 2017 gmc acadia order guide copy gm authority, p.6, p.23.
GM factory document — 2018 gmc acadia order guide copy gm authority, p.8, p.31.
GM factory document — 2019 gmc acadia order guide copy gm authority, p.8, p.33.

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 gmc acadia fleet order guide, p.10.
GM factory document — 2026 gmc acadia fleet order guide, p.10.
GM factory document — 2027 gmc acadia fleet order guide, p.11.

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