- 2027 Factory-verified
trim group heading of the Avenir columns (FWD and AWD)
1SG Factory-verified
Also described as Equipment group, Avenir
Also documented for CadillacChevroletGMC
Documented applications
- 2012, 2014, 2016 Factory-verified
2012: GM 2012 ordering guide (4PG69); 2014: GM 2014 fleet guide, Verano page (engine list, model 4PG69); 2016: page 1 model heading "1SV, 1SD, 1SG & 1SH", corroborated by the NICB VIN manual (2016 p.41); pages 2 to 5 print the code only with a footnote digit attached (1SG2)
This page aggregates every documented appearance of 1SG in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.