Door lock issues have all started in the past two months. Both rear doors will not lock or unlock with the key fob or door buttons, thinking shot door lock actuators on those. Although both stopped working at the exact same time.

The two front doors are different; both will always lock with the key fob and door button, but not always unlock. Front passenger door will unlock about 75% of the time, driver’s door about 10% with the key fob. The door button locks or unlocks them more often than the key fob, but not 100% 0f the time.

Is it safe to assume all the actuators are bad or going bad? Or is there something I can lubricate that might free them up or a try reprogramming?

The rear hatch continues to lock & unlock properly. I have changed the battery in the key fob.