NHTSA Complaint #11484356 — 2021 CHEVROLET COLORADO

I have taken my vehicle into the shop twice for an issue with the transmission. The first time they did a software update on the vehicle. They said that that would fix the issue. The vehicle was working fine for a week I took the vehicle back to the shop because it was making a clunking noise again when I put it in reverse. I recorded the incident of the clunking noise and I provided it to the service manager. They kept the vehicle for two days and stated that they were unable to replicate the issue. Even though I sent them a video they tried to tell me that it is normal for the vehicle to make a clunking noise when put in reverse. Upon further investigation online and speaking with people that know how to work on cars they stated to me that that is not normal. I have determined that multiple other Colorado’s have had this issue based on what I found online at this point in time Chevy need to do something about this or refund my money.