NHTSA Complaint #11521060 — 2019 CHEVROLET BLAZER

This is less an incident and more like a concern. I noticed a slight shudder upon accelerating. It started at lower speeds, approximately 25-30 mph, and shifting between second and third gear. Now with daily driving, the shudder has progressively gotten worse. It now happens at higher speeds, approximately 50-55 mph, and has become more violent. There is also now an acceleration and deceleration issue whether my foot is on the accelerator or I have the vehicle on cruise control. After some research, reading several service bulletins and forum posts, I have learned that the problem component is the torque converter in the transmission. Chevrolet is aware of the problem and has issued a service bulletin, PIP560C, recommending a drain and fill claiming that will fix the problem. I had this done in accordance with the bulletin, and it only made the problem worse. After talking with more than one mechanic, I was told that if this problem is not fixed, the vehicle could stall and the transmission could lock/seize up. This could present a safety issue by posing a potential cause of an accident if the vehicle stalls in the middle of a highway or busy street. This issue also can potentially cause further transmission failure.