Just hit 50k mils on my 08 tc. Did my oil change as usual in 5k increments. However this time when I try to reset my maint Light timer with the usual process of holding down the odo button while turning the ignition, it doesnt work. Odo reads: 5 - on, next time I try it reads: 5 - off. So I do it one more time and put it back to 5 - on. I dont know what this means or how to get my maint light to go away. Anyone got any helpfull answers?