- 2015–2018 Factory-verified
Denali; the lists read leather, level 4; 2018 from GM's 2018 Yukon order guide
H4W Factory-verified
Documented applications
- 2015–2017 Factory-verified
Denali (AN3 seats); two-tone
This page aggregates every documented appearance of H4W in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.