Originally Posted by Dallaz

Actually the key can't start the car(the metal key insert). Like doubleG said though you can use it to manually open the doors. If your Fob runs out of batteries you just have to insert it in the Fob slot to the left of the steering wheel and it should start. Do not try to insert the metal key in the slot because it will probably get stuck! Also I valet full time and on a busy weekend we may get up to 30 Fobs where the owner holds on to the key and any house keys and what not that may be attached and we use rubber bands to wrap around the Fob tightly and hang it by the rubber band on the proper hook with the ticket.