2016 Buick Lacrosse driver seat won't move.

[cosmicjazz]

The other day, I fixed a wiring issue with my driver’s window switch and the mirror that wasn't working. To do this, I unplugged my driver's seat to lift up a section of the carpet. However, after reconnecting the seat, I discovered that it no longer moves. This is puzzling, as it was functioning properly before.

I can hear the seat motors engaging when I press the switches, and I attempted to recall the seat position using the memory switches on the door, but only the side mirrors adjust when I do that. Could it be that unplugging the seat for a few hours caused the seat control module to lose its settings and now needs to be reprogrammed? I would greatly appreciate any advice or insights anyone might have.

 

[iownabuick]

cars are very finicky when unplugging the seat harnesses. had two cars detailed where they removed a seat. they plugged everything back in and somehow it fried the airbag module. ever since those instances i disconnect battery before touching any harness. inconvenient but better than the risk of unpredictable damage that can be had.

if the switches on the side still work and seat moves using those, than that helps narrow things down. however if those switches turn the seat motor on but seat does not move. id look into if the gears somehow got stripped/broken or if something is derailed/stuck in some way that prevents the motors from properly moving the seat along its rails.

 

[Human]

Check for broken wires or a blown fuse. I had a '97 Olds LSS on which the driver's seat recline control didn't work. I took the seat out and found that both wires were broken right at the point where they entered the motor. We had to open up the motor and re-solder the wires. When I got everything back together and wired up, I found I had re-soldered the wires in the wrong spots and the switch worked backward! I had to push it up to go back, and back to go up, but what the hell, at least it worked, and the thought of going back in and redoing it was more than I could tolerate, so I just left it as it was. Another time, I made up a plug-and-play wiring harness extension to add power seat controls to the passenger side of a Pontiac Bonneville, routing power from the driver's seat without cutting or splicing any wires on the car. I felt triumphant when that one worked first try without any issues.