Help? Tripmeters won't reset

[the Ferret]

Push down left button until TRIP A comes up, now push down same button and hold for 2-3 seconds and it and all functions related to Trip A should zero. Then cycle to TRIP B using same button, when Trip B shows up hold same button down for 2-3 seconds and it and all functions related to it should zero. Then using same button cycle back to ODO.

Btw I use Trip A for day mileage ( I record my daily mileage) and it gets reset every morning.

Trip B I use for fuel in tank and it gets reset every time I fill up.

I can go over 200 miles on tank, so don't let getting down to 2 bars or 1 bar scare you, just check how much miles you've gone on the tank ( Trip B)