The hesitation when going from 40-6mph to around 20-25mph and trying to get back up to speed has been a really frustrating experience. The truck tends to hesitate and feel like it wants to lose power unless I mash the accelerator. I never took it in to the dealer and complained because I read so many other posts of other customers not being able to get this issue resolved. I've sort of learned to live with it but it definitely affected how I felt about this vehicle. The truck is nice to look at but not so fun to drive. This issue can also lead to potentially dangerous driving situations.

There's a couple of workarounds I've discovered. Putting it into towing mode keeps the truck in lower gears longer, rather than being in 5th gear while only driving 40mph. I've also resorted to putting it in manual mode and doing my own shifting. I can control the gear selection and therefore avoid the hesitations but this is not something I want to do everyday. Since I bought this truck, I've been frequently asked by others how I like the truck and whether I would recommend it. Not once have I recommended this truck to anyone. This truck will ultimately become my second vehicle after I find a better driving car. It won't be a Chevy though!

This truck is the absolute worst when it comes to a transmission. When you slow down to turn or slow down to let a vehicle turn and press the accelerator the truck hesitates like it doesn't want to go. You have to let off the accelerator and almost come to a complete stop, then press the accelerator for it to go. This has caused several near accidents. It is horrible. I've brought this truck in at least 4 times for this problem, only to be told this is normal or they can't duplicate the problem.

Like most of the complaints I have read on the Colorado, I love the truck except for how the 6 speed auto shifts. I have had it in and was told. "it checked out fine."

It is not FINE. Always now when I drive and am going 20-45MPH and try to speed up, the truck does not know what to do. It should downshift! Instead it hesitates and seems to shift up and then back down. It will not down shift like it should unless I mash the gas pedal. This is not normal or FINE.

I have a 2014 Acura RDX with a 6 speed and it shifts up/down very fast always making the right solution. Thinking about selling my Colorado and buying a Ridgeline that has the same trans as my Acura. I would love the truck if it shifted right.

Chevy, step up and fix this issue! Seems to me a new shift map would fix this.

This truck hasn't shifted right from day one! I actually brought it back and asked them if they sold me a 4 cylinder because it just won't go. For goodness sake, don't ever pull out in front of anybody or you will be killed. When test driving the vehicle before I bought it, I didn't drive it enough to notice the problem. When in a turn if you let up on the gas then accelerate into the turn is the worst. Just thought I would put my 2 cents in about the issue. Don't know if GM will ever acknowledge the problem or not, but I don't think I will ever buy another GM vehicle again.

Getting sick and tired of this POS Chevy Colorado not knowing when to shift on acceleration or braking. This thing hesitates off the line, unless you mash the gas pedal through the floorboards, and god help you if you hit the brakes and then try to accelerate up a little incline, this tranny and engine combination cannot figure out what to do...it hesitates, it sputters, its does everything but accelerate smoothly. I have read all of the other complaints, and I had my truck in today and asked if any one else had has the complaint, one service guy no, never heard of it, while the other guy turned around and ran into the garage...

After reading all the posts this is obviously a significant issue and no way to fix it and Chevy will not admit they have a major issue with this truck. Anyone find a way to fix this other than a new flow-master exhaust system and possibly an aftermarket chip?

This truck sucks. Love the look, but the performance of this thing just blows.

The transmissions on these trucks are programmed very very badly. They shift up really fast and try to hold 6th gear even when they really need to shift down to climb even a slight hill. It feels like a manual transmission in high gear when you floor it and it just shudders. I assume this is just to save on gas but it is absolutely undefined and completely embarsssing when you have passengers and your truck is shaking trying to get up a hill beciase it just won't shift down.

I bought the trifecta performance Colorado advantage tune as someone else mentioned it on this site and while it did give the truck wayyyyyy more power and a better throttle response it still had horrible shift points especially when coming out of corners and accelerating. It shifts down too far so when you press the accelerator suddenly you jerk intil it upshifts. Basically just winds out the gears longer and won't shift into 6th until you are at interstate speed. Really just traded one extreme way of shifting for another.

I gave up on the truck and I think GM gave up on that transmission as well because now they are putting 8 speeds in the 2017 models. Hopefully they are more refined and better programmed than the 6 speed.

I traded the truck for a ram after only a month and half of owning it and took a loss. I have never been a mopar fan but after driving and considering a Silverado the ram was just smooth as silk. This confirms my hesitation to buy a gm vehicle in the first place.

Purchased my 2016 Chevrolet Colorado LT March 5 2016. Drove it home and returned a week later to have dealer put on hitch & wiring for towing my small boat. Picked up truck and everything great. Before getting a chance to tow my boat I stared having problems on the morning of March 18, 2016 with 300 miles on truck. After coming to a stop and then trying to accelerate the transmission violently kicks into gear and takes off. A low clunk is heard.

I went straight to dealer and a salesperson drove with me and confirmed the problem. We then drove back to the service dept. and a mechanic test drove the truck and confirmed my complaint but did not have a clue to what was the cause. I left the truck for them to trouble shoot. I called them 4 days later and they told me it was possibly some kind of valve in or attached to the transmission or drive line. They ordered the part and I will update my post once I get the truck back.

Update from Mar 30, 2016: Picked up my truck yesterday after it spent 10 days at the dealership. They told me it took some time to find the parts. So far no problems.

Inspected and replaced a scratched clutch select solenoid valve..Part #'s 24251431 & # 24272467