My vehicle is a 2025 Chevrolet Equinox EV equipped with a stalk-mounted electronic shift selector. On multiple occasions, when shifting from Reverse(R) to Drive(D), the transmission has failed to actually engage Drive despite the shifter indicating the D position had been selected. In most instances this resulted in the vehicle to unexpectedly move backward, requiring me to re-select the gear. This defect caused a collision. I was attempting to Dirve out of a parking space and needed to move quickly. I shifted the stalk to Drive, and — consistent with normal driving behavior — did not look at the instrument panel to visually confirm the gear had engaged before accelerating, as drivers do not typically re-verify gear selection after shifting. The vehicle had not actually engaged Drive. When I applied the accelerator, the vehicle did not move as expected, and I struck a vehicle behind me. The collision caused damage to my vehicle's rear hatch requiring full hatch replacement, estimated at approximately $4,000. There was no visible damage to the other vehicle. This is not an isolated occurrence for my vehicle — the shifter has intermittently failed to register a gear change from R to D on other occasions, typically resulting in only a few inches of unintended travel in the wrong direction rather than a collision. I reported this issue verbally to my dealership's service department, and was told they have received other reports of similar shifting problems with this vehicle, th