NHTSA Complaint #11678546 — 2021 CHEVROLET TAHOE

I am submitting this complaint regarding my 2021 Chevrolet Tahoe (VIN: [XXX] ) which has developed a severe transmission shudder at both low and highway speeds. The issue has been confirmed by my Chevrolet dealer, who provided an estimate of $5,492.18 for torque converter and valve body replacement. This failure is identical to the torque converter shudder problem documented in GM service bulletins and special coverage adjustments for other GM vehicles of the same make, model, and model year. However, my VIN is not currently included in those programs, leaving me without coverage despite experiencing the exact same defect. I believe this condition poses a serious safety risk, as the shudder occurs while driving at highway speeds, causing vibration, hesitation, and potential loss of control. These symptoms could lead to accidents if the vehicle fails to respond properly during acceleration or lane changes. Given that this appears to be a widespread defect affecting multiple GM vehicles, I respectfully request that NHTSA investigate and consider expanding any related recall or special coverage programs to include affected VINs such as mine. Please let me know if further documentation, service records, or dealer estimates are needed to support my complaint. Thank you for your time and for working to ensure vehicle safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)