- 2000 Factory-verified
23U Factory-verified
Also described as Primary exterior color, Space Blue Metallic
Also documented for CadillacChevroletOldsmobile
Documented applications
- 1998–2000 Factory-verified
- 2000 Factory-verified
- 1998–1999 Factory-verified
- 1998–1999 Factory-verified
This page aggregates every documented appearance of 23U in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.