Resetting Change Oil indicator on dash

Every time I change my oil on my 00' GP SE 3.1L V6 - 125100+ KM I always get the light on the dash "Change oil soon". I followed the steps for resetting the indicator sensor but for some odd its still not dissappearing. please help??

If it's the same as my 99 GT, you turn the key on (engine off) and press the accelerator pedal to the floor 3 times within 5 seconds, then the oil life indicator percentage should blink, then reset to 100% oil life.

Every once in a while i have to turn the key on to acc then off and do that 3 times then push the accelerator 3x in 5 sec. Don't know why but it always works.