I've noticed that my driver seat on my 2017 Model S makes a buzzing noise when it moves back (for easy entry mode). I drive the car every few days and this seems to happen only on the first exit from the vehicle, although I can recreate the sound then easily by moving the seat back and forth. Has anyone else encountered the same? Is it just some grease that needs to be reapplied to the seat rails? Would rather like to avoid taking the car into service for this.