- 2025–2027 Factory-verified
O on all trims; includes RIA, RIS and VLI; deletes the standard carpeted mats B34 and B35 from 2026; not available with PDH (2026 and 2027 also VAV; 2027 also CAV and WH6)
PDK Factory-verified
Also described as LPO, Floor Liner PackageLPO, Denali Sport Nightfall Edition
Also documented for CadillacChevrolet
Documented applications
- 2025 Factory-verified
2025: Denali, Denali Ultimate: O; includes 5FG, RIK, S4X; the 2026 and 2027 guides print PDK as the Denali Sport Nightfall Edition (next row)
- 2026–2027 Factory-verified
2027: Denali, Denali Ultimate: O; includes 5FG, RIK, S4X; the 2025 guide prints PDK as a 25th Anniversary Denali Package
- 2025 Factory-verified
2025: Denali, Denali Ultimate: O; includes 5FG, RIK, S4X; the 2026 and 2027 guides print PDK as the Denali Sport Nightfall Edition (next row)
- 2026–2027 Factory-verified
2027: Denali, Denali Ultimate: O; includes 5FG, RIK, S4X; the 2025 guide prints PDK as a 25th Anniversary Denali Package
This page aggregates every documented appearance of PDK in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.