There are a couple options out there that allows you to use a 2-in-1 remote key for the 4th generation Toyota 4Runner. The best part of all is that you only need to buy a specific remote key for about $20, get the key cut for about $10, and then program the remote and program the key all by yourself for free.
If you ever need an extra key for your 4th generation Toyota 4Runner and don’t want to to pay an arm-and-a-leg for the local dealership to do it, you can purchase a blank transponder key, get it cut at a locksmith, and program it yourself. Programming doesn’t require you to have any equipment or tools, so the only cost to you would be the purchase of a new key and to get it cut by a locksmith.