: Key Fob Question



chazglenn3
04-24-11, 11:11 AM
Will the key and key fob from the newer cars also work on the 2005-2007 cars? I like the newer design with the hidden key.

1BadCadSTS
04-24-11, 08:16 PM
yes but the key will not, they are more slim and will not work even if you got an 08+ cut to match.

Herbedout13
04-24-11, 10:50 PM
Anybody know where to get one other than dealer? I've checked eBay and only saw some poor looking replicas.

EChas3
04-24-11, 11:04 PM
yes but the key will not, they are more slim and will not work even if you got an 08+ cut to match.

While this is true, a 2005-early 2007 key will fit in the late 2007 & up new-style fob, with just a little work.

I acquired a new style fob and matched it with my 2006 first. Remember, only the first two matched fobs operate personalized functions, so start from scratch and match up to four fobs. (I tested it thoroughly before proceeding because fobs for different Cadillacs may look the same and support most functions and still be the wrong fob.)

Then I had a copy made of my original key at the local hardware store. (They told me a dealer needed to provide a secure key, but I knew better.) The metalwork isn't hard. Replacement keys are designed to cut easily. Hacksaw, bench grinder & drill press enabled me to shape the new key to fit into the metal head of the fob. The same True Value hardware store had a small enough screw & nut to mate them. A final touch to the grinder improved fit & finish and the task was done.

I've never had to use the physical key and hope to never have the need. But now I don't carry that big Caddy key I never use.

chazglenn3
04-25-11, 10:21 AM
Thanks for the great information! I sent you a PM...

z06bigbird
04-26-11, 02:51 AM
If you do not want to spend $$ on a key, go to used car dept. Ask used car mgr if he/she has one in his box of (50) extra used fobs. A pizza or a Wallymart gift card might secure the deal. I always end up with two fobs for all of my cars, and I have not yet bought one from the parts dept.

chazglenn3
04-26-11, 09:48 AM
Thanks for the tip...it is worth a try!

chazglenn3
05-07-11, 10:41 AM
Okay, I got my key fob and emergency key in the mail yesterday. I'll be off to the local Ace Hardware this afternoon to get a key made. I have a friend that has what I think are the proper tools to "massage" the key so that it will fit into the fob. The main issue I don't know about is if he has a small enough drill bit to make the hole in the key for the mounting screw.

EChas3
05-07-11, 01:16 PM
Small bits are usually pretty cheap. The trick is finding a small enough screw & nut. Fortunately, my True Value Hardware still carries odd fasteners. I had to go with stainless steel to get the tiny stuff. Fastenal is a good resource, too.

chazglenn3
05-07-11, 02:22 PM
The screw that is in the key blank now doesn't have a nut. It must be threaded, I assume. That is a tiny screw. I hope I can find what I need. You don't know what size you went with do you?

EChas3
05-07-11, 07:45 PM
The blank that comes with the new-style fob doesn't fit cars that come with the old-style fob. There's a thread about 3 months ago that listed the blank # you need.

nathanjax
07-30-11, 09:50 AM
OK, so I've been looking into getting the newer style FOB but I have a question...

Can someone give me the correct part number of the FOB I need? Some have the button for remote start and trunk pop and some don't. Obviously, I want the one that will start remote start my STS and pop the trunk.


Thanks,

Nathan

chazglenn3
07-30-11, 06:41 PM
The part number that is engraved on the thing is too small for my old eyes to read. The one you want has both the remote start button AND the hidden key. There is only one that has both. You will see many with remote start but without the hidden key push button. That is if you are looking on eBay, which is where I bought mine.

nathanjax
07-31-11, 08:54 AM
So any of these I could use?

1. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=260825688334&viewitem=&sspagename=STRK%3AMEWAX%3AIT

2. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=150531471460&viewitem=&sspagename=STRK%3AMEWAX%3AIT

3. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=270787246469&viewitem=&sspagename=STRK%3AMEWAX%3AIT

4. http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=200633569101&viewitem=&sspagename=STRK%3AMEWAX%3AIT

chazglenn3
07-31-11, 07:40 PM
The only one out of those that is correct is the last one (#4). Notice the small release button at the bottom...that is how you can tell it has the hidden key option. It is the correct fob, but doesn't come with the emergency key. You can buy those on eBay also. That is how I bought mine...two separate purchases.

nathanjax
07-31-11, 07:53 PM
Never would have noticed that unless you pointed it out...

Thanks !!!

chazglenn3
08-01-11, 12:38 AM
No problem!

nathanjax
08-01-11, 08:08 PM
Just purchased one for $44 shipped.

I'll be trying this once it comes in. Thanks for the great info in this thread!

nathanjax
08-07-11, 06:05 PM
Works great! The instructions worked flawlessly!

In case anyone else wants to do this, the FOB I purchased was:


08-09 CADILLAC KEYLESS REMOTE

THIS REMOTE READS:

GM PART NUMBER 25854935

FCC M3N5WY7777A

IC 267F-5WY7777A

chazglenn3
08-08-11, 10:22 AM
Sweet!