- 2014 Factory-verified
touch-up 213M as printed in the name
16U Factory-verified
Also described as Paint, Graystone MetallicPrimary color, exterior, Graystone Metallic
Also documented for BuickChevroletHummerOldsmobilePontiac
Documented applications
- 2009 Factory-verified
The list marks it (06).
- 2014 Factory-verified
the Sierra GMT900 doc's 2009 list reads 16U as Graystone Metallic
This page aggregates every documented appearance of 16U in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.