09 Corolla key addition

This requires a “special” electronic tool to learn the key (these generally cost several hundred to thousands of dollars). Some manufacturers give you the ability through a procedure to program your own keys (I’ve read some GM owners manuals that specify this), however, I never experienced this with Toyota during my ownership of a 2006 Corolla, or while installing 12v electronics (06-15).

Knowing all this, I went to Lowe’s home improvement and had them make a transponder key, and they beat Wal-Mart’s price at the time, by 10%, so it cost me ~$60.

Just remember this, if you think it’s expensive now, if you only have one key and lose it, they generally get you for (edit: A LOT!) more. My 2¢. Good luck.