Anyone know if it's possible to change the batteries in one of those stick-on wireless keypads? It is a genuine Ford accessory. I believe the part number is 3L2Z-14A626-AA. Thanks in advance.

 

RESURECTION...

Mine died as well. The whole internet had nothing to say about this damn thing so I was going for broke, as they say.
Well, here goes.
Tools required: 1) wide'ish but slightly sharpened flathead to go into the small groove at the right side base of the pad, 2) razor/exacto knife 3) wife's sweatshirt to protect my paint job!
Step 1: Pry the crap out of the cover (less twisting/more prying), with any luck the backing tape will hold and the cover will not.
Step 2: (ugly part) make a circumferential cut around the soft button material as close as you can to the sealing groove that the cover was in.
Step 3: remove buttons, support plate, and circuit card from the base and replace the 3V BR2335 button style battery.
Step 4: Hope it all goes back together with reasonable weather resistance. We'll see...
PS Maybe if it was above 26F it would have been easier...

 

the keypads on the door are not powered by batteries are they?????

 

The stick on ones are- they have to have power and since they are "wireless", they have to have an internal battery. They are just a pocket "keyless entry" transmitter (that doesn't go in your pocket) and therefore need a battery for power just like your pocket one does. The factory installed handle one doesn't because it is wired and draws juice from the truck's battery.

 

I am looking at having to change the battery and I am wondering how well the operation worked. Did it stay weather proof during the winter? Did it just snap back together or did you need to add caulking (or something similar) to keep it sealed and water tight?

 

Unfortunately, I can't vouch for the longevity of the job. It'll work till it don't. After all the hasle of ordering the battery that's not retailed anywhere and the finicky dismantling; maybe dropping $50 for a new unit is worth the convenience. I really like leaving the keys in the center console and walking away, knowing that the do-hickey will work later on...
EDIT Yes, I just snapped together, if you do RTV I would only do the top 3 sides unless you like to power through the big mud puddles a lot.

 

You can get replacements for these at doorkeypads.com. I looked for many, many hours for one for my new 2010 Tundra Crewmax and this is the ONLY one I found that did not require cutting my door or drilling to run the wires. Another big plus for this model was that I was able to install myself, so I didn't have to drop off at a stereo shop, etc to get installed like would have been required for all the other systems I saw... After having one in my 2006 Ford F150, I really can't say how handy a feature this is to have... especially if you have small kids...

 

If you don't have the stick on already, why not just replace the doorhandle with one that has the key pad? I had the stick on and after about 3 years, I decided to replace it with the factory handle and remove the stick on.