Front automatic braking

Years 2015, 2017–19, 2022–23, 2025–27 Models 6 Factory citations 16

Also described as Front automatic braking, vehicle forward movement, with brake pre-fill and Intelligent BrakeEnhanced Automatic Emergency Braking, vehicle forward movement, brake pre-fill and Intelligent BrakeEnhanced automatic emergency brakingAutomatic braking, forward

Also documented for Cadillac Chevrolet GMC

Documented applications

Enclave — C1XX (2018–2024)

2018, 2022–2023 Factory-verified

2018: Avenir: O, included only with BN2, replacing UHY (GM order guide via GM Authority); 2022–2023: Essence: O, in PQA; Premium: O, in PDX; Avenir: S; the 2022–2023 guides call it enhanced automatic emergency braking

GM factory document — 2018 buick enclave order guide copy gm authority, p.21, p.38.
GM factory document — 2022 buick enclave order guide copy nhtsa docket, p.3, p.19.
GM factory document — 2023 buick enclave order guide copy autoevolution wayback, p.3, p.18.

Enclave — VSS-S (2025–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 buick all new enclave fleet order guide, p.2.
GM factory document — 2026 buick enclave fleet order guide, p.2.
GM factory document — 2027 buick enclave fleet order guide, p.2.

Envision — E2XX (2021–2027)

2025–2027 Factory-verified

2027: all trims: S

GM factory document — 2025 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide, p.2.

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: Premium, Avenir: O; with WPA; the 2018–2019 guides also call it forward automatic braking

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.3.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.17.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.24.

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2015 Factory-verified

2015: 1SP, 1SR: O; with PCJ

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.3.

Regal — E2XX (2018–2020)

2018–2019 Factory-verified

2019: Essence, Avenir, GS: O (2019 Sportback order guide); the TourX list prints Front Automatic Braking

GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1.
GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1.
GM factory document — 2019 buick regal sportback order guide copy gm authority, p.25.

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