Weird door lock problems

so my 13 tundra has been acting up when it comes to the power locks.

Both passenger side door locks have minds of their own when they want to lock or unlock

I hit unlock on the key fob and there is a 50% chance one of these door will not unlock, same thing when I go to lock the doors.

Then they will work fine for a while. Then they will act up again.

Same thing with the fob as the power lock button from my driver side door.

Is this a sign of something going out, the lock actuators?

 

Now that you mention it.... I haven’t replaced the batteries in at least 3 years.

That’s a good and easy place to start.

Anyone have a link or tutorial on how to clean and lube the assemblies?

They are expensive parts, even aftermarket are about $250 each

 

****Update*****

I got the front passenger side door panel off pretty easy.

Went to remove the motor/solenoid housing but found out it was trapped behind the window rail. no matter how I wiggled it it would not come out. I am sure there is a trick.

So with the solenoid inside the door frame, I worked the cables back and forth by hand and sprayed some oil into parts I could access. I put everything back together and it worked!

So thank you to @OR18TRD.