2017 Chevrolet Colorado: harsh or hard shifting

Filed Jan 22, 2026 · Transmission · MS

Transmission hard shift. Sputters when driving

Filed Jan 26, 2022 · Transmission · OR

Hard shifting, missed shifts, shudder from TQ converter. For six months the vehicle has been shifting had at random times during shift sequences. Hard shifts occur on both moderate acceleration and hard acceleration. Shifts can only be described as sudden and violent, feeling something like a U-joint failure, broken transmission mount, or a clutch slipping and then slamming into gear. The hard shifts occur and any speed and any gear, but are very noticeable around 3rd / 4th. The TQ converter slips on acceleration only. Has been in the dealer 3 times for a total of 7 days so far with one technician claiming it needs a new TQ converter and possibly a new transmission. Other techs claim they can't find the problem. No codes, no lights. Dealer claims they can feel the problem but have failed to diagnose it. Failure of this could pose to be a serious safety issue if it happens at highway speed in traffic. GM has the inventory of 6L50 transmissions on lockdown.

Filed Feb 2, 2021 · Transmission · 18,466 miles · OH

Tl* the contact owns a 2017 chevrolet colorado. The contact stated that the transmission failed. The contact stated that while shifting gears the transmission shifted hard, slammed, and made clunking noise while shifting to park, reverse or drive. The contact stated that the failure occurred whenever the temperature was at 30 degrees or lower. The vehicle was taken to classic chevrolet (6877 center street, mentor, oh 44060, (440) 953-1070) for diagnostic testing. The dealer advised the contact that the transmission gear failure was a characteristic of the vehicle and there was nothing wrong with the vehicle. The dealer also provided the contact with a technical service bulletin that referenced the transmission issues. The manufacturer was contacted. The vehicle was not repaired. The failure mileage was 18,466.

Filed Dec 1, 2020 · Transmission · MD

On the highway when accelerating uphill there is a clunking sound. It feels like it's the gears are slipping. Only 15,000 miles on it he truck.

Filed Sep 8, 2020 · Transmission · 26,000 miles · VA

Very hard shifting when accelerating from a stop truck shifts real hard and jerks steering wheel from my hand.(very dangerous) shudder and heavy vibration during accelerating at any speed. Heavy consistent vibration at any highway speed. I am a handicapped driver and I am afraid to drive this truck. Unsafe at any speed.this is not a one time occurrence and has been doing this every day for over a month.

Filed Jan 14, 2020 · Transmission · 38,000 miles · NY

Transmission shudders and vibrates. Happens usually around 55-60 MPH, after the fluid reaches about 80 degrees. Hard shifting also from first to second gear. Gm is aware of this problem yet chooses to do nothing about it. Truck is out of warranty(40k) so they want $400 to flush transmission. It's a shame that gm won't stand behind their products. When will they be held accountable?

Filed Jan 5, 2020 · Transmission · 30,697 miles · PA

Transmission shudders when going do the road. Happens at both lower speeds and at higher speeds in town and on the interstate. Hard shifting as well when vehicle is not up to operating temperature.

Filed Dec 9, 2019 · Transmission · TX

2017 colorado, 19632 miles, hard up/down shifts to first gear and shudders while driving, found bulletin 18na355, dealer huffines chevrolet plano tx replaced transmission fluid per bulletin and resolved shuddering issue but not hard shifting in and out of first gear and dealership will not return calls to resolve problem.

Filed Aug 16, 2019 · Body · 20,000 miles · MI

Upper control arm, right hand side, went bad and needed replacement in under 20,000 miles. Detected with a clunking noise, and confirmed when I went in for alignment. It was replaced before it broke, but a broken control arm is a major safety risk.

Filed May 21, 2019 · Transmission · MT

Hard shifting & slipping of the transmission started at about 10,000 miles. Dealer unable to repair even though they tried 4 times including a remanufactured transmission. Not sure what type of damage is occurring to the transmission with this hard shifting.

Filed Feb 14, 2019 · Fuel system, Suspension · 10,142 miles · ME · 2 injuries

Fuel pump weld crack, service 4wd message displayed, clunking in rear end all dismissed repeatedly from dealership I purchased my vehicle from. I bought this truck new off the lot which has been in the shop in excess of 10 times for multiple issues. The 4x4 started november 2017 I was told it was because we were having abnormally cold weather and it would come out of it. It has been in multiple times since then and they were unable to duplicate. Clunking in rear was dismissed as nothing, could not duplicate. I started smelling burning plastic, then when starting my vehicle in the morning the exhaust smell was so overpowering that it would gag us. The burning plastic smell was intermittent while driving and that was only after driving the truck between 2 to 20 or the full drive home and sometimes not at all. I had been nodding off, getting massive headaches and sick to my stomach while driving my truck, so was my daughter. No matter what they had my truck for, they could not duplicate the issue and I had a loaner for a week at a time. I took my vehicle to another dealership who just ended up sealing my pickup box, replacing fuel pump module, installed a body plug per a bulletin, per bulletin applied lubricant to both rear leaf springs and torqued leaf springs to specs. Transfer case control module had a bulletin for which my dealer stated they put dielectric lubricant. I was driving a vehicle with my child in it with carbon monoxide poisoning us based on the symptoms we were both suffering, exactly when would that have been duplicated, at autopsy???? I don't trust this truck, I don't want to drive this truck, I hate this truck now and I am stuck with 5 years of payments and something that tried to kill me. How is that for safety!!!! My opinion only!!!

Filed Nov 29, 2018 · Transmission · 13,000 miles · ME

When automatic transmission downshifts into 1st gear coming to a stop, it lunges forward. If when nosing into a parking space with any kind of pole or vehicle directly in front of my truck, not leaving enough space my truck would hit whatever. When driving slowly with my 8 speed automatic transmission sometimes it rattles as if I am on a rumble strip and sometimes it just clunks or thuds. This and other shift issues make me even more hyper vigilant when driving. 6 months after I purchased my brand new 2017 colorado, during a spell of negative degree weather I lost the following: my cruise control, traction control, four-wheel drive; my engine light came, oil light all lights came on and my radio stopped working. I was told by my chevy dealer that this was normal in cold weather. Next, I was informed it must be because I washed my vehicle the day before. This went on for a few months, with me showing them videos and them telling me they could not duplicate the issue. October of 2018 they replaced my radio because evidently the radio had a bulletin that showed all of the things I had complained about. I want to say this happened in excess of 10 or more times. Driving to my mothers one evening in the dark my dash lights were not dimming correctly and then went out. As I got to a four way intersection with cars coming they came on so brightly I almost got in an accident which prompted me to make an appointment and I wasn't willing to hear silly excuses.