- 2025–2027 Factory-verified
PCK Factory-verified
Also described as LPO, sports bar packageAmbulance / fire / rescue packageSLT Crew Cab Value Plus package
Also documented for BuickCadillacChevroletPontiac
Documented applications
- 2025–2026 Factory-verified
- 2025–2026 Factory-verified
includes Tech Bronze D-ring recovery hooks, front and rear (W0H), Tech Bronze emblems (RIK), 18 inch Grazen Metallic beadlock capable wheels with Tech Bronze decorative ring (RZK) and the matching 18 inch spare (RZT); requires the Extreme Off-Road Package (Z6X); not available with the Sport Package (PCP). 2025: O in 1SF, 1SG; 2026: O in 1SF, 1SG; not offered in 3VL.
- 2025–2027 Factory-verified
only in: 3500 HD CC; for a dedicated emergency vehicle (ambulance or fire truck); Regular Cab T*31403 and Fleet or Government orders; provides emissions revisions for emergency vehicles (ANM); includes wide-track rear axle (GTY), Duramax diesel (L5P), diesel particulate filter with manual regeneration (FPF) and engine block heater (K05); Pro, SLE: O
- 2014 Factory-verified
new for 2014.
This page aggregates every documented appearance of PCK in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.