Hi mikedan193
I reset mine literally a week ago (oil change distance)
can be pain if you don't hit the button right away ^_^
(mine's a 2005 with cd changer)
using the little buttons in the instrument cluster (by the Tacho, odometer etc...)
Press the little button on the right and hold it for 3 seconds while the spanner/wrench symbol and distance are displayed.
the spanner/wrench and distance should then start flashing.
release the button, then press the button (on the right) again for the interval to increase 500 miles each press.
If this isn't how your system works IE: it's a newer shinier, blu-toothed, bells and whistles version...then...I'm not so sure