Wheels, 20 inch (50.8 cm) alloy with Pearl Nickel finish and Sterling Silver center cap

Years 2016, 2025–27 Models 2 Factory citations 4

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Also described as Wheels, 20 inch aluminum, dynamic twin-spoke, bi-color finish

Also documented for Chevrolet

Documented applications

Cascada — Delta II (2016–2019)

2016 Factory-verified

1SP: S; 1SV: not available; the 2016 guide calls it aluminum design 3; 2017–2019 are left out: those guides print it only as included in the 1SP group (2017 page 13, 2018 and 2019 page 14), so they do not support the years (rule 11(a))

GM factory document — 2016 buick cascada order guide copy gm authority, p.3, p.8.

Envision — E2XX (2021–2027)

2025–2027 Factory-verified

2027: Avenir: S

GM factory document — 2025 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide, p.7.

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