How to remove 20hr service code?

[gmustangt]

Is there a way for me to remove the 20hr service code?
everytime i start the machine its flashes "service" at me.

Just wondering if theres a way to remove it or does it have to be taken to the dealer?

Thanks

 

[BadAftertaste]

1. Enter the History Program.
2. Press and release the SET button until the service interval screen is
active.
3. Press and hold the SET button for ten seconds, continuing to hold
even after the display begins to flash.
4. When the display stops flashing, release the button. The service
interval has been reset.
To reset the reminder at a new interval:
1. Enter the History Program.
2. Press and release the SET button until the service interval screen is
active.
3. Press and hold the SET button for five seconds, until the hours begin
to flash. Immediately release the button.
4. Press the button again, up to five times, to advance the reminder in
20-hour increments.