Tire pressure monitoring system

Years 2021–27 Models 10 Factory citations 39

Also described as Tire Pressure Monitoring System, auto learn, includes Tire Fill AlertTire fill alertTire pressure monitoring system, with auto learnTire pressure monitoring system, auto learn, includes tire fill alertTire pressure monitoring system, auto learnTire pressure monitoring

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 gmc acadia fleet order guide, p.9.
GM factory document — 2026 gmc acadia fleet order guide, p.9.
GM factory document — 2027 gmc acadia fleet order guide, p.10.

Canyon — Second generation (GMT31XX) (2015–2022)

2021–2022 Factory-verified

2021: S on all trims; the upfitter list names it tire pressure indicator, auto learn

GM factory document — 2021 gmc canyon fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.13.

Canyon — Third generation (VSS-T) (2023–2027)

2023–2027 Factory-verified

S on all trims; the upfitter lists read tire pressure indicator, auto learn

GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.13.
GM factory document — 2024 gmc canyon fleet order guide wayback, p.1.
GM factory document — 2025 gmc canyon fleet order guide, p.3.
GM factory document — 2026 gmc canyon fleet order guide, p.4.
GM factory document — 2027 gmc canyon fleet order guide, p.5.

Hummer EV Pickup (2022–2027)

2025–2026 Factory-verified

GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc hummer ev pickup fleet order guide rpo codes, p.1.

Hummer EV SUV — BT1 (2024–2027)

2025–2026 Factory-verified

SUV guide wording: Tire Pressure Monitoring System with auto learn.

GM factory document — 2025 gmc hummer ev suv fleet order guide, p.4.
GM factory document — 2026 gmc hummer ev suv fleet order guide, p.4.

Sierra EV — BT1 (2024–2027)

2025–2027 Factory-verified

GM factory document — 2025 gmc sierra ev denali fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc sierra ev denali fleet order guide, p.4.
GM factory document — 2027 gmc sierra ev fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra ev fleet order guide, p.9.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

only in: 2500 HD and 3500 HD pickup; does not apply to the spare tire; Pro, SLE, SLT, AT4, AT4X, Denali, Denali Ultimate: S

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide, p.8.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.7.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.6.

Sierra — T1XX (2019–2026)

2023–2026 Factory-verified

GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.15.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.17.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.15.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Yukon — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13.
GM factory document — 2025 gmc new yukon denali fleet order guide, p.8.
GM factory document — 2026 gmc yukon denali fleet order guide, p.8.
GM factory document — 2027 gmc yukon fleet order guide, p.8.

Yukon XL — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: S on all trims

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.13.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.13.
GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.7.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.8.
GM factory document — 2027 gmc yukon xl fleet order guide, p.7.

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