2017 Metris with 70k miles and a sliding door issue. Door would slide shut but not close. Had the panel taken apart and found that when I disconnected the cable from the door module the actuator latch assembly would close it. Took it to the dealer and they said the actuator latch was not working and replaced it. Since they didn’t have a new one in stock, they decided to put in a used one. $290 for the actuator and $319 for the diagnosis. 3 weeks later same issue - took it back to the dealer and he diagnosed it as a faulty motor and door module. Parts cost $900 and $700 and diagnostic another $320. Decided against the repair and our mechanic determined that it was the used door actuator not working. Made a video and took it back to the dealer. Let’s see what they do now. Hopefully it’s the door actuator as everything points in that direction. What was shocking is that they said the motor was burnt and the door module was fried - when it actually wasn’t the case. Used Xentry with a star c4 to determine that was not the case.