- 2015–2017, 2019, 2021–2022 Factory-verified
2015–2016: S on all trims; 2021 from the upfitter list GM files for 2021 and 2022
AKJ Factory-verified
Also described as Windshield, shade band
Also documented for CadillacChevrolet
Documented applications
- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
- 2022–2023, 2025–2027 Factory-verified
2027: S on all trims
This page aggregates every documented appearance of AKJ in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.