Headlamps, high intensity discharge, projector beam

Years 2015–19 Models 5 Factory citations 17

Also described as Headlamps, high intensity dischargeHeadlamps, high-intensity discharge projector-beam, LED signatureHeadlamps, high intensity discharge, C-shaped lighting

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Second generation (C1XX) (2017–2023)

2017–2019 Factory-verified

2019 guide: Denali: S

GM factory document — 2017 gmc acadia order guide copy gm authority, p.5, p.22.
GM factory document — 2018 gmc acadia order guide copy gm authority, p.7, p.29.
GM factory document — 2019 gmc acadia order guide copy gm authority, p.7, p.31.

Sierra — K2XX (2014–2019)

2016–2019 Factory-verified

new for 2016.

GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.3.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.32.
GM factory document — 2018 gmc sierra 1500 order guide copy gm authority, p.91.
GM factory document — 2019 gmc sierra 1500 limited double cab k2xx order guide copy gm authority, p.41.

Terrain — Second generation (D2XX) (2018–2024)

2019 Factory-verified

SL, SLE, SLE Diesel, SLT, SLT Diesel: S

GM factory document — 2019 gmc terrain order guide copy gm authority, p.7, p.38.

Yukon — K2XX (2015–2020)

2015–2019 Factory-verified

Denali: S; other trims halogen projector; 2018 from GM's 2018 Yukon order guide

GM factory document — 2015 gmc yukon denali fleet order guide wayback, p.3.
GM factory document — 2016 gmc yukon denali fleet order guide wayback, p.3.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.32.
GM factory document — 2019 gmc yukon denali fleet order guide wayback, p.1.
GM factory document — 2018 gmc yukon order guide copy gm authority, p.3.

Yukon XL — K2XX (2015–2020)

2015–2017 Factory-verified

Denali: S; SLE, SLT: halogen projector

GM factory document — 2015 gmc yukon xl denali fleet order guide wayback, p.3, p.5.
GM factory document — 2016 gmc yukon xl denali fleet order guide wayback, p.3, p.5.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.14.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.32.

This page aggregates every documented appearance of T4F in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.