L3B ✓ Factory-verified

Cadillac · Regular Production Option

Engine, 2.7L turbo, 4 cylinder, SIDI, automatic stop/start

Years 2024–26 Models 1 Factory citations 4

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Also documented for ChevroletGMC

Documented applications

CT4 — Alpha 2 (2020–2026) →

• 2024–2026 ✓ Factory-verified

  V-Series: S; Premium Luxury: O; the CT4 guides print 310 hp and the CT4-V guides 325 hp; 2024 from GM Authority's 2024 CT4 specifications (RPO LSY and L3B listed)

  ⛭ GM factory document — 2025 cadillac ct4 fleet order guide, p.15.

  ⛭ GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.7.

  ⛭ GM factory document — 2026 cadillac ct4 fleet order guide, p.14.

  ⛭ GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.8.

Related codes · mentioned in these notes

LSYOSV

This page aggregates every documented appearance of L3B in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.