my driver side, when closing my window using the auto feature, it closes all the way then automatically goes half way down! & sometimes on the same side my power locks don't work! i complained before warranty on the same problem & they told me it's my aftermarket alarm, come to find out it's not the problem!!!! i took apart the door but couldn't find any problems! any ideas, except dealership prices!

 

there is a sensor/relay in the motor thats probably bad. had similar problems and had to replace the motor. also u can try and reset it first. somewhere in the forums there is a thread how to do it. didnt fix it for me though.

 

The motors are known for going bad. I had one replaced under warranty and same side went bad a couple of years later. Worst part is I had just dynamatted the doors.