Engine, Ecotec 1.2L turbo DOHC, direct injection, variable valve timing (VVT), E85 compatible

Years 2025–27 Models 2 Factory citations 6

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Also described as Engine, Ecotec 1.2L turbo, DOHC, direct injection, variable valve timing

Also documented for Chevrolet

Documented applications

Encore GX — VSS-F (2020–2027)

2025–2026 Factory-verified

only in: FWD; Preferred: S; GM-stated 137 hp, 162 lb-ft; not offered for 2027 (GM Authority, 2026-03 and 2026-09 articles)

GM factory document — 2025 buick encore gx fleet order guide, p.8.
GM factory document — 2026 buick encore gx fleet order guide, p.7.

Envista — VSS-F (2024–2027)

2025–2027 Factory-verified

all trims: S; GM Authority lists LBP on its 2026 and 2027 pages (2027 carries over) and LIH for 2024

GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2025 buick envista fleet order guide, p.6.
GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.6.

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