- 2007–2009, 2014–2016 Factory-verified
the 2014–2016 guides read 7-passenger seating (2-2-3 configuration).
ABB Factory-verified
Also described as Seat configuration, #2
Also documented for BuickCadillacChevroletOldsmobilePontiacSaturn
Documented applications
- 2017–2019 Factory-verified
2019 guide: SLE-2, SLT-1, SLT-2, Denali: S
This page aggregates every documented appearance of ABB in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.