So my 16 Colorado now has 76,000 miles. It has had some issues. At 20K, the turbo failed 200 miles from home towing a camper and I had to cancel the trip and limp home. 2 weeks to fix. It has had DEF codes that wanted to limit my top speed every 100 miles so I would reset the codes to get home, then the issue eventually stops (low DEF pump pressure). The big problem is a bucking issue when accelerating briskly past 2700 RPM, the injectors cut out for 1/4 second and come back on hammering the drivetrain. This one started at just under 60K miles, but it didn't happen at the dealer (McGuire in NJ) and they never logged the visit since they didn't keep the truck and didn't see it happen. At 60,500, it got much worse, they kept the truck for a week. It did it every day but they couldn't find out why and didn't know where to look and had me take it back saying wait till it gets worse so we can find it. I told them I was nervous about the bucking killing the trans. They said don't worry, the trans will be fine. I monitored the injector pulses and found that the computer was turning off the injectors when this happened. I plotted the injector traces and brought the truck back, and now that they had a place to look, they kept it again and started dealing with corporate. After 3 weeks, they said engineering says it is normal, the ticket is closed out. The service manager at McGuire said he can't argue with corporate about it being normal because they would hang up on him, he then just left. He also refused to take a test drive with me. Corporate said I will have to go to another dealer to re open the ticket. I went to another dealer and had a trans flush (figured it was due) and had them relearn the crank to see if it would help. It actually did help for a month or two, but then came back, sometimes hammering multiple times while accelerating and every time I accelerated. I ended up at another dealer, and at least this service manager went for a ride and when it bucked, his response was "what the F... was that?!?!" He said definitely not normal and made an appointment to bring it in, but it was in about a month since they will have it for a long time and I will need a loaner car. He also said don't worry about the trans, these things are bulletproof and when not shifting the pressures are very high and it is clamped tightly. We towed the camper 600 miles (it does not busk when towing since the truck does not accelerate past 2700 fast enough to have the problem) and now the torque converter starts shuddering. We head back home again babying the truck, and the shuddering keeps getting worse. Of course now the bucking is gone, I guess because the truck accelerates differently and the ECU doesn't see a reason to cut the injectors. We now bring the truck in for its appointment (76000 at this time) and after 2 weeks, they get back to us saying the torque converter is bad and it took out the trans. It will cost about $5400 and then they STILL will have to find the cause of the bucking after replacing the trans. This might be the worst vehicle I have ever owned and as far as I am if McGuire did their job, I might have saved the trans.