I just took delivery of a 2017 Colorado cyber grey metallic V-6 2WD LT 8peed crew cab short bed last week. First off, I can say with some authority that my truck does NOT have AFM fuel management. Numerous times I have scrolled down to the screen that says V-6 and it has never switched indicating a 4 cylinder application. Also don't judge the 8 speed shifts early on as being a little harsh. I mentioned it to the dealer on the test drive and he indicated that it would smooth out as the transmission "learned" my driving style. It didn't take but a couple hundred miles before it was as smooth as can be. In my neck of the woods (NE Florida) prices are not very negotiable off MSRP. There are however some GM rebates on SPECIFIC models and colors. A model identical to mine had a $3000 rebate because it was black. Mine is pretty well loaded with leather, heated seats, locking rear, trailer package, wheels, etc. and an MSRP including delivery of $35,185. Also to be noted, on my window sticker that the 6 speed is standard and the 8 speed is a $150 option.
I have the same equipment I believe. Nice ride.
MSRP $34,965 ($31,027 paid with rebates)
Model: 12N43-2017 COLORADO
2017 2WD Colorado LT Crew Cab 3.6L V6
GBV Cyber Gray Metalic
H2V Jet Black/Ashen Gray Leather Seats
PCM Convenience Package
PCK Luxury Package
Z82 Towing Package.
G80 Locking Differential
E25 Assist Steps,Chrome 5" Rectangular
The sticker price always shows what is "Standard" for the drive train first, which is the 2.5L 4 cylinder and 6-speed transmission. So, when you opt for the V6 ($1,235) you must get the 8-speed transmission ($150), when you order out a Colorado, the 8-speed is a mandatory option. In other words, the 8-speed is "Standard" then with the V6 engine. These prices should be off to the right in the included options list. The dealer should have given you the sticker or left it in the glove box.
The 3.6L engine DOES have AFM. . . all do
and mine switches to the "V4" indication when I let off the gas like approaching stop lights or even coasting down a slight grade with foot off the gas pedal.
If you have more than slight pressure on the gas pedal at all, it will not go into V4 mode. The 3.6L V6 does have AFM. If yours does not go into V4 mode either your driving style isn't allowing it, the driving conditions do not allow it, or something is not working correctly.