GMC Sierra 2013 about door lock

What is your question?

Hi guys I'm rizwan and I'm from United Arab Emirates I have my own and I need some help workshop I got a customers car GMC Sierra 2013 power door lock and unlock with remote and driver side switch but can't lock from passenger side door switch only unlock I checked all the fuses and relay everything how much I knows thank you sir for your information

What makes this problem better or worse?

I’m looking for best of best answer

How long has your 2013 GMC Sierra 1500 had this problem?

May be a week