- 2016–2018 Factory-verified
all trims: S; letter O in the code as GM prints it; GM prints no zero form
4GO Factory-verified
Also described as Wheel, spare, 17 inch steel
Also documented for ChevroletGMC
Documented applications
- 2017–2019 Factory-verified
2019: Sport Touring, Avenir: S; Preferred, Essence, Premium: O; GM prints the code with a letter O; no zero form in GM's lists
This page aggregates every documented appearance of 4GO in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.