The parts department supervisor at the dealer where I purchased my C-max researched the keyless entry pad. What he was told was that the keyless pad is not compatible with C-Maxs equipped with the push button start. In lieu of that, he suggested a $65 security key to be kept in my wallet or outside the car. I haven't looked it up in the manual yet but my car seems to unlock the driver door if I have the fob near the outside of the door and pull the handle twice.