The front passenger door does not unlock with either the key or the keyless remote

This is most likely a door lock actuator issue.

You need to start with unlocking the door with the key to open the door.

Then remove the door panel and start checking the voltage when pressing the unlock button.

Here are a couple guides that will help with this:

https://www.2carpros.com/articles/door-panel-removal

https://www.2carpros.com/articles/test-or-change-electric-power-door-locks

Basically we need to see if there is voltage coming from the junction block for this actuator. If it is then the actuator needs to be replaced.

https://www.2carpros.com/articles/how-to-check-wiring

I also attached the info from the manual that takes you through the testing for the actuator.

Please run through this info and let us know what questions you have. Thanks