Hello KD985.
We are sorry to hear about your experience and understand how frustrating it can be when the self-propelled function is no longer operating as expected. Based on what you described, there are a few areas that may be helpful to check. Ensuring the drive control cable is properly connected and has not become loose or stretched over time can help, as this directly affects engagement of the self-propel system. It may also be worth inspecting the rear wheels and drive gears for any debris buildup or obstruction, as well as confirming that the height adjustment is even on both sides, since uneven settings can impact traction and drive performance. Additionally, checking that the battery is fully charged and properly seated can help rule out power-related inconsistencies.
We understand your concerns regarding parts availability and documentation, and your feedback is important as it helps identify opportunities for improvement. If the issue is not resolved after these checks, we recommend contacting our support team directly so they can further assist with troubleshooting and review available service options with you. They can be reached either using the online chat function, on Greenworks Tools page, or by calling 1-888-909-6757.