- 2025 Factory-verified
includes ZM9, QK2; 2025: S in 3LT; not offered in 2WT, 5WT, 8WT, 2SP, 3SP; not available with XTF
XTD Factory-verified
Documented applications
This page aggregates every documented appearance of XTD in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.