Relationships are built on positive deposits.
Be intentional about making positive deposits in your account. Then when something negative happens, you can make a withdrawal without damaging your relationship.
But if there is nothing in your account, there is nothing to withdraw.
How well do you know your support and service teams?
Do not make the mistake of only going back to see service and support when there is a problem. That is bad for the relationship.
Make it a habit to visit with all the teams in your dealership.
Thank them for what they do for you.