Programming new key on '08 GC

I recently purchased a used '08 Grand Caravan. I am attempting to program some new keys for it, but I seem to be running into an issue:

I follow the directions for entering customer programming mode, but the step where the security light is supposed to flash, and the system emit a chime doesn't happen correctly. I get the light flashing, but the chime doesn't sound. As soon as I turn the key to lock to put the new one in, the light stops flashing. Subsequently, the keys do not program, and I get the BAD KEY message.

Has anyone programmed these, and if so, were there any other steps, other than what the manual indicated. I've tried with the door both opened and closed, and with the seatbelt done and undone.

Does anyone have any insight into this? Am I missing something, or do I need to take it in for warranty. I know the chime works, because I changed the mode of "automatic door unlock", and got a chime when I entered progamming mode for that.

Thanks for any help!!!

Mike

check manual usual need 2 keys programed to do it dont work car book should be more help

check manual usual need 2 keys programed to do it dont work car book should be more help

Followed the directions word for word in the manual. Still looking for some insight, as the dealer didn't have much else to say. Might have to check with a different dealer.

Thanks.
Mike

dont talk with dealer check with mom and pop locksmith like american locksmith hanover dealers will say any thing 60 dollars hour do that even for a key program