U91 ✓ Factory-verified

GMC · Regular Production Option

Antenna, roof-mounted shark fin

Years 2019, 2023–24, 2026 Models 2 Factory citations 4

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Also described as Antenna, short, roof, radio

Also documented for BuickChevrolet

Documented applications

Canyon — Third generation (VSS-T) (2023–2027) →

• 2023–2024, 2026 ✓ Factory-verified
  ⛭ GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.12.

  ⛭ GM factory document — 2024 gmc 24 canyon electrical body builder manual 2023oct04, p.13.

  ⛭ GM factory document — 2026 gmc canyon electrical body builder manual service manual 2026 en us, p.8.

Terrain — Second generation (D2XX) (2018–2024) →

• 2019 ✓ Factory-verified

  all trims: S

  ⛭ GM factory document — 2019 gmc terrain order guide copy gm authority, p.6, p.37.

This page aggregates every documented appearance of U91 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.