- 2027 Factory-verified
touch-up WA-243F; additional charge
GEC Factory-verified
Also described as GVW rating, 9,800 lbGVW rating, 9,800 lbs
Also documented for CadillacChevrolet
Documented applications
- 2027 Factory-verified
additional charge; not available at the start of production; touch-up WA-243F
- 2027 Factory-verified
Pro, Elevation, AT4, AT4X, Denali, Denali Ultimate; extra charge; touch-up WA-243F
- 2006–2007 Factory-verified
only in: heavy-duty models (GM’s HD list: 1500HD, 2500HD, 3500)
- 2009 Factory-verified
- 2006–2007 Factory-verified
- 2007–2009 Factory-verified
This page aggregates every documented appearance of GEC in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.