- 2005 Factory-verified
Kit-only code: lower body color of the two-tone paints (SS, 2003 high sport appearance package; 2005 Supercharged SS).
GM Heritage factory kit — 2005 Chevrolet Monte Carlo, p.113.
21L Factory-verified
Documented applications
This page aggregates every documented appearance of 21L in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.