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2nd copy of car keys and fob?



 
 
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Old August 6th 17, 02:29 AM posted to rec.autos.tech
Percival P. Cassidy[_2_]
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Default 2nd copy of car keys and fob?

On 08/04/2017 02:28 PM, I wrote:

>>>>>> Really burns me up that the duplicate keya are so expensive. With
>>>>>> all
>>>>>> the inexpensive electronic gear out that is much more complicated
>>>>>> someone is making a killing on the duplicate car keys.
>>>>>>
>>>>>> I just bought a new 2017 Toyota (would have gotten the 18, but
>>>>>> they are
>>>>>> butt ugly). It has the keyless start where you just push a
>>>>>> button, and
>>>>>> even the doors will lock and unlock with just a touch of your hand if
>>>>>> you have the FOB with you.
>>>>>>
>>>>>> The key fits inside the fob. It is a flat piece of metal and
>>>>>> there are
>>>>>> some notchies on the side. I have not had time to check it out,but
>>>>>> think that key has some kind of electronics in it also. That way you
>>>>>> can use the key if the battery in the fob goes bad. The book says
>>>>>> the
>>>>>> fob battery will only last about 2 years. I guess it is sending
>>>>>> out a
>>>>>> signal all the time. The push button to unlock the doors on the
>>>>>> other
>>>>>> car and truck fobs are 10 years old and still work.
>>>>>
>>>>> Maybe things have become more complicated and more expensive recently,
>>>>> but it's my understanding that I can program a new key for our '02
>>>>> Chrysler with some kind of "key-dance" routine as long as we still
>>>>> have
>>>>> one already-programed key.
>>>>
>>>> For my 2004 Chrysler Sebring, I needed 2 good chip keys to make another
>>>> one, and I needed one good fob to make another one.
>>>>
>>>> The process of making them would make a good test for old people to see
>>>> if they can still concentrate. It's always been a real challenge, but
>>>> this time I got the keys on the 4th or 5th try and the fobs on the 3rd
>>>> try. I think that's pretty good.
>>>
>>> It seems that I was confused and you are correct: reprogramming the fob
>>> requires only one working key, but reprogramming a chipped key requires
>>> two working keys.

>>
>> While I think of it, if I were to get and program a spare key and fob,
>> can the fob be linked to the seat and mirror settings on the 300M.
>> ISTR that only two different sets of setting can be programmed in
>> (conforming to only two buttons for seat settings), but can the 3rd
>> fob be set as a duplicate to one of the other two?

>
> Having now tried it with a third fob that I purchased, the answer
> appears to be "No": the third fob will lock and unlock the doors but
> cannot be linked to seat, etc., settings.
>
> And I also discovered, after doing the key-dance thing (and doing it
> several times over before I got it to work) to get the 3rd fob
> recognized, that it can be done much more easily using the EVIC
> ("Electronic Vehicle Information System," IIRC).
>
> I have programed the chip in the new key I bought, but the key has not
> actually been cut so that I can use it to start the car: I have a
> non-chip key that fits, and I used that with the new key held next to it
> to program the chip. Some people have reported that they have found it
> difficult to find someone to cut the new key: the hardware stores often
> say that they cannot cut "chipped" keys, and the locksmiths often want
> to charge an arm and a leg for cutting *and programing* a new key. We'll
> have to see.


I took my new uncut programed, chipped key to the local Lowe's and
offered to pay the usual price for cutting a key, but to cut my own
instead. The young guy said, "Since you're bringing in your own blank,
there'll be no charge." It works just fine.

Perce

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