i put some older mini wheels on my 2009 cooper and they do not have the sensors so i keep getting the alerts on the dash about tire pressure. it does not reset. is there a way to over-ride this and turn off the warning?

 

The 05 sensors are different then the 09 and NOT compatible with each other ...
You can do the following things:
1) Remove the TPMS sensors from the 09 wheels and mount them in the older wheels
2) Purchase a set here : http://www.tpmssource.com/(S(4nsduz3.../AppGuide.aspx
3) remove the bulb from the dash and ignore the low pressure light