A while ago (several months) I found that using the lock button on the driver's door (it's the only lock button in the car) was getting sluggish when trying to lock the driver's side door. It only seemed to lock the driver's side door occasionally though all the other doors had no problem with locking. Since then I started using the fob to lock all the doors, which worked until just last night. Now the only way to lock the driver's door is to do so manually. I'm not sure if it's a fuse thing or not. The handle and lock is functional, it was just feeling more and more sluggish when I would go to use the lock buttons.