Do you understand the meaning of tuning?
Tune what? Fuel system, transmission, brakes, steering system?, exhaust system, what u want to tune on a new vehicle which has done only 18000 on the odometer. We are taking about fuel injection system engine here. You have excess money to waste over nothing.
Just do the following:
1) Replace engine oil if due.
2) Carry out tire rotation
3) Get air filter checked / cleaned. Replace if required.
4) Get the brakes inspected.
5) Carry out visual inspection (level) of all lubricants and fluids.
That's all u require my friend, what u want to tune?