It appears that side's actuator is not working which could be because of several things.
If you have a little DIY savy, you can check the wires thru the door jamb for pinches or, better yet, pull off your door trim to inspect inside the door skin for a loose actuator arm/rod. It may even be the module that is the brains of the central locking that could be mounted anywhere; though I highly doubt it's mounted inside the door panels.
Like I said, it could be a number of things....
A dealership visit OR a reputabler car audio will resolve the issue by pinpointing the source.
Truck was sold today [5/19]. I got an offer I couldn't turn down. I had no more need for a pickup so I cut it loose. About to purchase a '14 Jeep SRT8 this week.