How do I clear the mpg indicator in Toyota Camry 2003

There are a few things to do, 2003 Camrys with the Navigation Package is set up different than those without. But let's start at the beginning. What does this mean? It is the average mpg you got on your car since the last fill up, and will reset it's self to 0 automatically when you fill up. If when you buy gas if you don't fill it all the way up it will not reset. But see the little button right under the gas gauge? That is the reset, also trip odometer reset The ignition must be on & the 'READY' light showing. The reset button must be held down for 5 seconds to clear the MPG Average. click on the picture