- 2023, 2025–2027 Factory-verified
SEO trim combination; S on all trims; in the 2025–2027 guides only in the Cargo guides
93B Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of 93B in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.