- 2015–2016 Factory-verified
Touch-up paint WA-410Y.
G1M Factory-verified
Also described as Primary color, exterior, Dark Sapphire Blue MetallicPaint, Dark Sapphire Blue Metallic
Also documented for BuickCadillacChevrolet
Documented applications
- 2017 Factory-verified
touch-up WA-410Y; extra cost, not on SL or Denali; deleted for 2018 (GM's 2018 change list via GM Authority)
- 2016–2017 Factory-verified
touch-up paint WA-410Y; extra charge; not with SL or Denali; 2017: not with WFP
- 2018 Factory-verified
2018: touch-up WA-410Y; extra charge; 2018 from GM's 2018 Yukon order guide
This page aggregates every documented appearance of G1M in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.