- 2019, 2025–2026 Factory-verified
2LT, 3LT, RS: O; Premier: O (2025 only); the 2019 list prints "Forward Automatic Braking"; the 2025 and 2026 lists print "Enhanced Automatic Emergency Braking", which replaces UHY
Also described as Enhanced Automatic Emergency BrakingFront automatic brakingAutomatic collision preparation, forward, with brake prefillFront automatic braking, Intelligent Brake Assist, collision avoidance brakingForward automatic braking
Also documented for BuickCadillacGMC
Documented applications
- 2024–2027 Factory-verified
- 2023 Factory-verified
Premier: included with WK7; the list reads all-speed collision imminent braking; only in: Bolt EUV
- 2027 Factory-verified
LT, RS: S
- 2025–2026 Factory-verified
S;
- 2025–2027 Factory-verified
- 2025–2027 Factory-verified
S on all trims
- 2024–2027 Factory-verified
included with AS2
- 2027 Factory-verified
- 2023–2026 Factory-verified
- 2016–2019 Factory-verified
LTZ: A, only with Y66; LS, LT: not available; new for 2016; the guide reads intelligent brake assist; 2019 reads forward automatic braking; 2018–2019 from GM's 2018 and 2019 Suburban order guides (GM Authority copies)
- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
- 2016–2019 Factory-verified
LTZ: A, only with Y66; LS, LT: not available; new for 2016; the guide reads intelligent brake assist; 2019 reads forward automatic braking; 2018–2019 from GM's 2018 and 2019 Tahoe order guides (GM Authority copies)
- 2022–2023, 2025–2027 Factory-verified
2027: retail guides: S on all trims
- 2018–2019 Factory-verified
High Country: S
- 2017–2018 Factory-verified
Premier: included with and only with KSG, in place of UHY; printed as new for 2017 (also GM Authority's 2017 RPO list)
This page aggregates every documented appearance of UGN in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.