- 2019 Factory-verified
touch-up paint WA-457B; not available on L
Also described as Graphite MetallicPaint, Gasoline Metallic-2
Also documented for BuickCadillacGMC
Documented applications
- 2017–2018 Factory-verified
touch-up WA-457B; the 2017 upfitter list names it Gasoline Metallic; the merged Canyon doc names the GMC version Dark Slate Metallic; 2018 from GM's 2018 Colorado order guide (PDF)
- 2018–2019 Factory-verified
touch-up WA-457B; 2018: not on L or LS; 2019: hatch only, not on LS
- 2017–2018 Factory-verified
touch-up 457B
- 2018 Confirmed
new for 2018 (GM's 2018 Impala RPO change list, GM Authority); deleted for 2019 (GM's 2019 Impala RPO change list, GM Authority)
- 2017–2019 Factory-verified
touch-up paint WA-457B; 2017: GM's 2017 Silverado 2500HD order guide; 2018: GM's 2018 Silverado 2500HD order guide; 2019: GM's 2019 Silverado 2500HD order guide
- 2018–2019 Factory-verified
touch-up WA-457B; not on L, LS (1FL) or LS; 2018: not on RS or High Country; 2019: not on High Country
This page aggregates every documented appearance of GPA in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.