The culture in your team is what you ***do***. How you behave, and how you treat each other.
Culture is shaped by what you ***reward*** and ***penalize***. You have to be intentional and Know What Type of Team You Are Building.
If you find that your team culture doesn't match what you want it to be, consider how your Systems reward these undesired behaviors.
Since different teams have different objectives, requirements, and types of people, there may be several cultures in an organization.