GCP ✓ Factory-verified

Cadillac · Regular Production Option

Cyber Yellow Metallic

Years 2025–26 Models 2 Factory citations 6

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Also documented for ChevroletGMC

Documented applications

CT4 — Alpha 2 (2020–2026) →

• 2025–2026 ✓ Factory-verified

  extra cost; the 2026 guides mark it no longer available to order; the 2026 CT4 guide offers it on Sport only and marks it new

  ⛭ GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.36.

  ⛭ GM factory document — 2026 cadillac ct4 fleet order guide, p.31.

  ⛭ GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.33.

CT5 — Alpha 2 (2020–2026) →

• 2025–2026 ✓ Factory-verified

  extra charge; in 2026 no longer available to order, and on the CT5 only on Sport; touch-up paint WA-628G

  ⛭ GM factory document — 2025 cadillac ct5 v ct5 v blackwing fleet order guide, p.36.

  ⛭ GM factory document — 2026 cadillac ct5 fleet order guide, p.31.

  ⛭ GM factory document — 2026 cadillac ct5 v ct5 v blackwing fleet order guide, p.38.

Related codes · mentioned in these notes

CT5

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