Mark,
I've had a number of VW's and Audi's and the batteries in those switchblade
keys last a really long time. When you change them, you don't typically
have to do any additional programming or anything. Programming comes when
you get a new fob that was not previously associated with your car.
I think people are confusing terms here. The transponder keys are just
normal keys that you put into the ignition. They are separate from the
keyless entry feature in your car. They have an added security feature
that requires a transponder chip to be near the ignition before the car
will be allowed to start. These have been on GM cars for at least a
decade. I now have a car with the keyless ignition. That is the type of
key that allows you to unlock your door and start the car with the key in
your pocket. The transponder key doesn't require any kind of battery to
work. The keyless ignition fob does require a battery and it goes through
them more quickly than a traditional keyless entry remote.
-Paul
On Mon, Mar 18, 2013 at 9:51 AM, Mark Andy <marka@maracing.com> wrote:
> Howdy,
>
> Suddenly I care about this, as a new owner of a 2012 GTI... :-)
>
> When you replace the battery, do you have to reprogram anything?
>
> Mark
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