The 2012 GMC Savana has a 4-speed automatic.
The 2012 GMC Canyon has a 5-speed manual.
The 2012 GMC Yukon has a 6-speed shiftable automatic.
The 2012 GMC Acadia has a 6-speed shiftable automatic.
The 2012 GMC Terrain has a 6-speed shiftable automatic.
The 2012 GMC Savana-Cargo has a 4-speed automatic.
The 2012 GMC Yukon-Hybrid has a 4-speed automatic.
The 2012 GMC Sierra-2500HD has a 6-speed automatic.
The 2012 GMC Yukon-XL has a 6-speed shiftable automatic.
The 2012 GMC Sierra-3500HD has a 6-speed shiftable automatic.
The 2012 GMC Sierra-1500-Hybrid has a 4-speed shiftable automatic.
The 2012 GMC Canyon runs on regular unleaded.