I bought a used 2011 Dodge Grand caravan that had no key fob.... Dealership wants $400 for a new one and program it. But I can buy a key fob online for $70 but everything I read only tells me how to program a second key fob. I can't find anything to tell me how to program a key fob without having an original.

 

You need two working FOB’s to program any others. Dealer will have to program it if you only have one.

 

Dorman Solutions have Dodge and Chrysler KEY FOB with OBD II reader to program the FOB for the do it yourself.

https://www.dormanproducts.com/p-98856-99360.aspx

 

I know this is an older post but just in case, please do not spend $70 on a keyfob. While some aftermarket key fobs are junk, you can buy 3-4 and still spend less money than $70 for one and will end up with a good one (buy from different sources on Ebay). I have purchased many keyfobs for Caravan's and T&C's... have owned 7 different vans (used for delivery). I've only had one seller out of at least 5 that sent me two keyfobs that didn't work.

And I have used that Dorman programmer that is mentioned above. I found the cheapest price I could on eBay and it worked perfectly even though I did not have an existing keyfob. And you don't have to use Dorman brand keyfobs later on if you need to program more.