TGD ✓ Factory-verified

Chevrolet · Regular Production Option

Headlamps, LED

Years 2009, 2025–27 Models 3 Factory citations 10

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Also described as Language control, English, Japanese, German

Also documented for CadillacGMC

Documented applications

Suburban — T1XX (2021–2027) →

• 2025–2027 ✓ Factory-verified

  2027: LS, LT, RST, Z71: S

  ⛭ GM factory document — 2025 chevrolet new suburban fleet order guide, p.5.

  ⛭ GM factory document — 2026 chevrolet suburban fleet order guide, p.5.

  ⛭ GM factory document — 2027 chevrolet suburban fleet order guide, p.5.

  ⛭ GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.9.

Tahoe — T1XX (2021–2027) →

• 2025–2027 ✓ Factory-verified

  2027: FL, LS, LT, RST, Z71, Police Package, Special Service: S

  ⛭ GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.5.

  ⛭ GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.4.

  ⛭ GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.4.

  ⛭ GM factory document — 2027 chevrolet tahoe police package and special service fleet order guide, p.5.

  ⛭ GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.9.

TrailBlazer — GMT360 (2002–2009) →

• 2009 ✓ Factory-verified
  ⛭ GM factory document — 2009 chevrolet trailblazer 2wd rpo code list, p.1.

Related codes · mentioned in these notes

Z71

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