- 2014 Confirmed
GM Authority 2014 RPO list
SEM Factory-verified
Also described as LPO, wheels, 20 inch 5-spoke Silver-painted aluminum
Also documented for GMC
Documented applications
- 2022 Factory-verified
- 2022 Factory-verified
This page aggregates every documented appearance of SEM in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.