This just started yesterday, when I use the keyfob, all the doors lock perfectly, unlock perfectly, but the drivers door, It will only move the lock lever half way, which keeps it unlocked, If I lock it manually with the lever, it will be locked, and if I push the keyfob, it will move the lever half way, unlocking the door, but never goes all the way.
Even when I try with the power lock switch.
Is there something that needs to be lubed?

 

I have the same issue on both the driver's and passenger's door. Haven't done anything about it yet. No help, I know. But just wanted to let you know you are not alone on this.

 

The lock motor going out. Had to replace both on mine a few years ago because of the same problem and now they doing it again. Wish I didn't have electric locks or windows, I hate the problems with them.

 

Mine does that when it gets really cold out. As soon as it warms up, back to normal lol.

 

That is what I think is the problem, we have been in the single digits above zero, (Fahrenheit that is) and well below zero at night. Come Saturday and sunday, we will be back up into the 20's and around 30. if its not fixed by than, Looks like a new lock solenoid