Don't know where you get your information.

Local locksmith's first attempt to copy my key would not turn the ignition. The second attempt did. My simple deduction tells me the key blade must be cut to operate the ignition. Mechanic tells me to pair a key with the car it must be put in the ignition and turned. It can't be turned unless the blade is cut. This includes the "Extra" key that does not have a fob. So don't understand how the car can be coded to accept the key without it being cut.

 

There is nothing inside the ignition switch to recognize the cut of the key, so I'm not sure why yours wouldn't turn when you first had it cut. All 955s and 957s use the same ignition lock switch - they aren't VIN specific or anything.
I'm fairly certain I've coded a blank key to a Cayenne before, but just to be sure, I'm pretty sure I have a blank key and a spare ignition switch at home. I will verify this tonight.

 

Everyone who said the ignition does not need a specific key is 100% correct. The pattern is strictly for the door lock and glove compartment lock.

There is still a pin of some sort inside the ignition switch and if the pattern of the key is cut too "sharp" it will hang up. I bought a cheap eBay blank and had a local place cut it, and while it worked perfect in the locks, it was notchy in the ignition switch until the pattern was rounded off a bit.

I have a random key blank from another Porsche with a pattern nowhere near the original...won't work in the door and glove compartment lock, yet works perfect in the ignition. Of course it can't start the car without the fob.

 

Confirmed last night that any key will turn the ignition switch (my Saab key worked), but it does need to have a cut (not any specific cut) on both sides of the blade in order to fully insert into the ignition switch.

 

This is bull****. I own this car. I should be able to reach into the key programming system on my car to have it accept new keys. Porsche should let me choose a personal password that the car will recognize to enable me to program in new keys. They can have their last resort master password, but I should have access.

 

You're talking about a car company that won't even allow their owners to reset their own maintenance light without visiting the dealer! Do you really think they will allow what you're proposing? I'm surprised Porsche doesn't have a pad lock on the oil drain bolt preventing us from taking the car elsewhere for service. It's getting border line ridiculous, but that's the Porsche way now.

 

Guess when the locksmith made the 2nd trial key it was smooth enough that it also worked in the ignition. But the first one didn't turn in the doors or ignition.

I also have a key without the keyless entry fob that will drive the car. Think it is called an "extra" key and even though it has no "fob" still has a chip in it.

Yep it is a hasslle, and to add a key you have to have all the keys you want to use present and reprogram the car for all the keys.

 

I think Slicky Rick meant to say was that his
European CarryAll was stolen.

 

What are you responding to?