Auto door locking

The trick is to call them, not e-mail. There phone (use the non toll-free one) is on the website. Not only have they answered this every time (during business hours), but they've also called me back twice.
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I hear you! Are people so lazy now a days that it is a task to lock their own vehicle doors? It is routine for me, after closing my door I lock it.....it is a simple thing. I never forget, just like I don't forget to buckle up or bring my key fob. For crying out loud people, it is matter of using one finger to push a button. It's not even an older style mechanical button like in older vehicles, it's an easy to press electric button!

Pretty soon society will be like the folks in the movie Wall-E.

It might be too late for you, or not, but certainly might help others.
I had some business at my local Toyota dealer and expressed my frustration that the 2008 Prius doesn't have this auto door lock feature. I was told, but it can be programmed into the car's computer, one of the options.
Of course the service rep told me that it will be at least 1/2 hour or maybe 1 hour at their fee. WOW, $60-$115.
At least this can be done without ripping that part of the car up.

I agree to some extent, but it's a basic safety feature that's nice to have. My wife always forgets to lock the doors. She is just not a person who thinks of things like this as she always has 100 other things on her mind with scheduling the kids, planning stuff, volunteer work, etc. She just doesn't think of it. It's not laziness - it is just not something she focuses on.

Is Toyota's design group so lazy these days that it's a task to provide something that my 13 year old Ford has?

Apparently the 2008 can be programmed at the dealer to lock automatically. I didn't interrogate them further what other years can be as well Of course they came up with excuses why it isn't already part of the operation.

Is there a battery in key ?

Is it easy to install?