- 1998 Factory-verified
ZRL (spare) is printed unreadably in the 1998 kit and is not claimed
GM Heritage factory kit — 1998 Chevrolet Motorhome, p.6.
XRL Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of XRL in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.