ok i have a 2001 tundra and it never came with any keychain device for unlocking the doors. it is power locks and i have been unlocking the drivers side door manually for about 6 years now. Anyone have any problems with the actual lock barrel in the door failing. i have to wobble the key to try and get it to slide in to unlock the door. The passenger side door is as smooth as ever unlocking. i just dont want to have to unlock from the passenger side just to get in. my key is getting pretty rounded from years of use but i dont think thats the issue since ignition and passenger side work just fine. If i do need to replace the barrel should i take it to the toyota dealer or would a locksmith suffice?