- 2025–2026 Factory-verified
S: 1LT, XDB, 1RS; not offered: 2LT, KDZ, 2RS; not in the 2027 guide
MRQ Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of MRQ in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.