- 2027 Factory-verified
all trims: O (ADI available); dealer-installed
RIS Factory-verified
Also described as LPO, Second row all-weather mat
Also documented for Chevrolet
Documented applications
- 2025–2027 Factory-verified
O on all trims; included with PDK, PDH, VAV or RIA
This page aggregates every documented appearance of RIS in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.