Not with the newer viper systems. you don't need an extra key. On my car I do have an extra key for the system but for my explorer I don't.i probably wont go with any since i need a new spare and i refuse to pay 100 bucks for a key....i mean common its a ford not a benz or beamer
> i probably wont go with any since i need a new spare and i refuse to pay 100 bucks for a key....i mean common its a ford not a benz or beamer
If you still have your two original keys, you don't have to pay ford $100. Ford will sell you a key for less than $25, or you can get one on ebay much cheaper. You can then program the new key yourself, using your two existing keys.
If you have lost one of the keys, then you have a problem and need to pay Ford or one of the select locksmiths that have the programming tool.
I have no experience with the above e-bay vendor and only show it as an example of what's available.