How do you re-set the dash codes on a 2006 Mazda 6?

To reset the dash codes on a 2006 Mazda 6, first, turn the ignition key to the "ON" position without starting the engine. Then, press the gas pedal three times within five seconds. After that, turn the ignition off and then back on. This should clear the diagnostic trouble codes from the dashboard. If the codes persist, it may require a more thorough diagnostic check.