FXC ✓ Factory-verified

Buick · Regular Production Option

Axle, 3.49 final drive ratio

Years 2018, 2022–23 Models 1 Factory citations 3

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Also documented for CadillacChevroletGMC

Documented applications

Enclave — C1XX (2018–2024) →

• 2018, 2022–2023 ✓ Factory-verified

  S on all trims; GM Authority's 2020, 2021 and 2024 pages give the 3.49 ratio without the code

  ⛭ 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.31.

  ⛭ GM factory document — 2023 buick enclave order guide copy autoevolution wayback, p.8, p.29.

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