GMC Canyon chudder and harsh shifting issue with no found solution on GMC Canyon

Some GMC Canyon owners report experiencing chudder and harsh shifting issues, particularly in the second-generation models from 2017 to 2019. Symptoms associated with this problem include lugging or jerkiness at low speeds, delayed downshifts, gear hunting, and clunking noises. Additionally, many owners have noted harsh shifts, especially between first and second gears, which are common in various GM models equipped with 8-speed transmissions. Potential causes for these transmission issues include misaligned throttle position sensors, malfunctioning shift solenoids, or general wear and tear. While some owners have found that a transmission fluid flush may alleviate the problem, it does not work for everyone. Rebuilding or replacing the worn pressure regulator system may also be necessary to maintain proper hydraulic pressure for smoother operation. Addressing these transmission issues typically requires a thorough diagnostic process to identify the exact cause and determine the most effective solution.