C75 ✓ Factory-verified

Chevrolet · Regular Production Option

Lighting, interior, overhead courtesy and dual reading lamp

Years 1963–79, 2023–27 Models 4 Factory citations 9

Query this via API →

Also described as Air conditioningLighting, interior, front, courtesy and dual reading lights

Also documented for BuickGMC

Documented applications

Impala / Full-Size →

• 1963–70s (varies) ◑ Single-source

  Automatic temperature control

Blazer EV (2024–2027) →

• 2025 ✓ Factory-verified
  ⛭ GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.

Colorado — Third generation (2023–2027) →

• 2023–2027 ✓ Factory-verified

  LT, Z71, ZR2: S; WT, Trail Boss: not offered

  ⛭ GM factory document — 2023 chevrolet 23colorado electrical body builder, p.10.

  ⛭ GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.11.

  ⛭ GM factory document — 2025 chevrolet colorado fleet order guide, p.29.

  ⛭ GM factory document — 2026 chevrolet colorado fleet order guide, p.34.

  ⛭ GM factory document — 2027 chevrolet colorado fleet order guide, p.33.

Trailblazer — First generation, VSS-F (2021–2027) →

• 2025–2027 ✓ Factory-verified

  all trims: S

  ⛭ GM factory document — 2025 chevrolet trailblazer fleet order guide, p.2.

  ⛭ GM factory document — 2026 chevrolet trailblazer fleet order guide, p.2.

  ⛭ GM factory document — 2027 chevrolet trailblazer limited fleet order guide, p.3.

Related codes · mentioned in these notes

Z71ZR2

This page aggregates every documented appearance of C75 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.