2020 Chevrolet Colorado POWER TRAIN,ENGINE

Drive ability issues, feels like going over cattle guard,shudders when accelerating around 40-60 mph. the vehicle shudder's abnormally. there are no warning lights illuminated. Took to local Chevrolet dealership where a service bulletin, TSB: 21-NA-047 was discovered to address the issue. The dealer recommended a transmission fluid flush. Mileage on this vehicle was 67,631.

No warning lights are illuminated but have this consistent violent Engine rattle/shuddering that is getting worse and worse. Also when looking under the hood the Crank pulley wobbles/rattles when truck is idle. Was told it could be the harmonic balancer going out due to there being a gap between that and the Crank. The truck only has 100,000 miles on it. I got it used at 88,000 miles and have barely had the truck for a year now, the steering wheel was intermittently difficult to maneuver and no warning lights illuminate, the truck shifts hard from 1st to second gear now and seriously hesitates to accelerate. This is extremely concerning and apparently an ongoing complaint for this vehicle and something should be done about it. Not only does it cause financial destress on the owners of the vehicles but also a safety hazard to the driver

MY NEW CHEVY COLORADO TRUCK (10000 MILES) HAS EXPERIENCED VIBRATION ISSUED BETWEEN 30-60 MPH. TYPICALLY IT HAPPENS WHEN IN CRUISE CONTROL BETWEEN 50-60 MPH AND I TRANSITION FROM GOING DOWNHILL TO UPHILL AND THE ENGINE IS STARTING TO RE-ENGAGE AND ACCELERATE TO MAINTAIN SPEED. IT FEELS LIKE I AM GOING OVER RUMBLE STRIPS AND ITEMS IN MY GLOVE BOX CAN BE HEARD VIBRATING AROUND. APPARENTLY IT IS COMMON ENOUGH THAT ON THE INTERNET IT IS KNOWN AS THE "CHEVY SHAKE". I AM WORRIED ABOUT PREMATURE TRANSMISSION FAILURE. ALSO, IF THE INTERNET IS CORRECT, CHEVY HAS KNOWN ABOUT THE PROBLEM SINCE AT LEAST 2018. ALSO, IF THE INTERNET IS CORRECT, CHEVY HAS KNOWN ABOUT THE PROBLEM SINCE AT LEAST 2018. I HAVE ALWAYS IT WAS THE PAVEMENT CONDITIONS UNTIL I DID SOME RESEARCH ONLINE. I THINK I HAVE REALLY NOTICES IT WITHIN 3 MONTHS OF PURCHASE IN MAY 2020.