- 2015–2018 Factory-verified
SLT, Denali; 2015 reads power configurable; 2018 from GM's 2018 Yukon order guide
ATT Factory-verified
Also described as Second-row seat, 60/40 split-folding bench
Also documented for CadillacChevrolet
Documented applications
- 2022–2023, 2025–2027 Factory-verified
2027: Elevation, AT4: S; Denali: O
- 2015–2017 Factory-verified
SLE: not available; SLT: A; 2015 reads power configurable
- 2022–2023, 2025–2027 Factory-verified
2027: Elevation, AT4: S; Denali: O
This page aggregates every documented appearance of ATT in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.