- 2014 Confirmed
new for 2014 (GM's 2014 list); 2016 is left out: the 2016 guide prints it only with the included-in-equipment-group mark on the GS group 1SX (p.22; the wheels page p.34 prints no availability), group contents
REH Confirmed
Also documented for CadillacChevrolet
Documented applications
This page aggregates every documented appearance of REH in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.