C4R ✓ Factory-verified

Buick · Regular Production Option

GVWR, 4211 lbs. (1910 kg)

Years 2025–26 Models 1 Factory citations 2

Query this via API →

Also documented for Cadillac

Documented applications

Encore GX — VSS-F (2020–2027) →

• 2025–2026 ✓ Factory-verified

  only in: FWD; Preferred: S

  ⛭ GM factory document — 2025 buick encore gx fleet order guide, p.8.

  ⛭ GM factory document — 2026 buick encore gx fleet order guide, p.8.

Related codes · mentioned in these notes

FWD

This page aggregates every documented appearance of C4R in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.