Has one of your key-remotes stopped working?

- Mine did only a few weeks after taking delivery; I just stopped using it and started using the other key... but today, several weeks later I tried to figure out why it stopped working.

So, the most typical reason this happens is that the battery runs out. So I replaced the battery, to do this, pull the key apart from the front seam or use a sharp knife to separate the fob and the battery is exposed. It's a CR2032, replace it and your key should start working.

Well, mine did not... and as it turns out, many of yours may not because there is a TSB on this.

Apparently, the key fobs lose their synchronization if the buttons are "frequently inadvertently pressed outside the radio range of the vehicle." Well, it's really Porsche's fault for making the buttons so easy to press while the keys are in pockets.

To solve this you need to perform the key "handover procedure." This same process needs to be done if you get a replacement key fob, not just for your new fob but for all preexisting fobs as well. To save you a trip to the dealer, here is how you do it:

"Insert the key into the ignition lock and turn the ignition on. Then press the remote button until the blinking frequency rate of the central locking switch in the dashboard changes. Remove the key from the ignition lock and test function."

Hopefully this will save some of you a trip to the dealer as it did me.

- Suneet

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- Suneet


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About a week ago I went to get something out of my 08 CS after not driving it for about a week. The key remote did not unlock the doors or hatches, so I had to use it as an actual key (!) to open the door. After starting the car (I wanted to make sure the battery was ok), the key remote began to work fine from that point on. I didn't do any special key presses as described in the previous post. How weird is that?

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2008 Cayman S; Meteor Grey/Sand Beige (weekend toy)
2009 Audi TT 2.0T FWD Coupe (my daily driver)

HMB-croc,

What you are describing is another 'feature' of the Cayman; after a few days of no access the car shuts off some convenience features to preserve enough battery power to start-up and one of these is the remote receiver for the key fobs.

- Suneet

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- Suneet


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There may be some other things like this that you don't know about. Take a look in the FAQs here: The Cayman Club - FAQ: Miscellaneous See key for your issue. Porsches can be different than what you are used to so a little reading can help.