Programming Oem Key Fobs

[dwags]

Does anyone know how to program an OEM key fob? I have a 2005 2500HD. I have an extra fob and my keys don't unlock my doors, they only work in the ignition. I'm nervous if my main fob dies that I won't be able to get in my baby. Thanks in advance.

[jpshea88]

new keys have to be programmed at the dealer

the parts department will cut it, service will program it

if it's just a FOB, no cutting just programming

 

do you mean the battery on the remote died?

cuz if so, pry it open and put a new one in

[dwags]

I have a spare that is not programmed. I have keys. I need to program the spare fob.

[Mike1187]

I dont know how it is in the 05's, but in my 08 all you have to do is select "relearn remotes" in the DIC, then hold both buttong onthe remote until the horn beeps, then continue with the next remote.... up to 8 according to the manual. maybe yours also has a similar option.

[minibike132]

Close all the vehicle doors.

Insert the ignition key into the ignition lock cylinder.

Press and hold the door unlock switch.

While holding the door lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.

Release the door unlock switch. The doors will lock and unlock to confirm the program mode.

Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.

Repeat the previous step to program up to 4 transmitters.

Turn the ignition switch to the RUN position in order to exit the keyless entry transmitter programming mode.

Operate the transmitter functions in order to verify correct system operation

[jake111]

sparkstech beat me to it! Yep, those are the directions for 2005 (and 2004 and other years in that era). But a couple of tips:

 

- Obviously, since the doors are closed and you're turning the ignition key on/off, you do it while sitting inside. When you're all done, test the fobs locking/unlocking while you're STILL in the truck (don't get out and test from the outside). Also, roll down the windows, just in case.

 

- Once programming begins you MUST reprogram all of the fobs. If you blow it, the old fob won't work any more. So don't leave until you get it right, just start over.

 

- Have the fobs within easy reach and in the order you want them to be (#1, #2, etc.). Once you start programming them, there is a limited amount of time from when you finish one and have to start the next one (i.e., holding down both the lock and unlock buttons on one fob, and then the next fob).

 

- If it's like my '04, when I programmed 4 fobs (I'm not comfortable with just 2) the first one programmed becomes Driver 1, the 2nd is Driver 2, the 3rd is Driver 3, and the 4th is Driver 2 (yes, Driver 2 again). I bought 2 #1 fobs, and 2 #2 fobs. #1 is Driver 1, #2 is Driver 2, I overwrote the 2nd fob #1, on the back, with a 3 and it's Driver 3, and the 2nd #2 is also Driver 2).

 

Good luck!

[dwags]

Thanks guys it worked perfectly and easily, once I figured out that you were talking about the door lock/unlock rocker in the door. Thanks again. This forum is awesome for finding answers and talking to fellow Chevy owners. This is what it's all about!!

[star2323]

Is keyless entry standard on all the LS and above models? The '03 (LS trim) I'm looking the current owner doesn't have the key fobs. It has power everything. Can I buy a key fob and program it to work?

[dwags]

Is keyless entry standard on all the LS and above models? The '03 (LS trim) I'm looking the current owner doesn't have the key fobs. It has power everything. Can I buy a key fob and program it to work?

 

 

I really don't know for sure. Hopefully someone will answer this for you. I will check to see what the RPO code is for keyless entry and get back to you.

[dwags]

Is keyless entry standard on all the LS and above models? The '03 (LS trim) I'm looking the current owner doesn't have the key fobs. It has power everything. Can I buy a key fob and program it to work?

 

 

I really don't know for sure. Hopefully someone will answer this for you. I will check to see what the RPO code is for keyless entry and get back to you.

 

 

 

The RPO code on my 2005 is AUO. I would assume that it is the same code for the 03 you're looking at. They are located on the inside of the glove compartment and are 3 digit alphanumeric.

[minibike132]

Is keyless entry standard on all the LS and above models? The '03 (LS trim) I'm looking the current owner doesn't have the key fobs. It has power everything. Can I buy a key fob and program it to work?

 

 

I really don't know for sure. Hopefully someone will answer this for you. I will check to see what the RPO code is for keyless entry and get back to you.

 

 

 

The RPO code on my 2005 is AUO. I would assume that it is the same code for the 03 you're looking at. They are located on the inside of the glove compartment and are 3 digit alphanumeric.

 

Depending on the exact remote option it may be a different rpo. You can post your vin here and someone is usually happy to post a build sheet or you can copy your rpo label and search them here which you can find in the upper left under navigation rpo looku[.

[star2323]

I just put the VIN in that thread. Thanks.

[sahls01gmc]

Does anyone know how to program an OEM key fob? I have a 2005 2500HD. I have an extra fob and my keys don't unlock my doors, they only work in the ignition. I'm nervous if my main fob dies that I won't be able to get in my baby. Thanks in advance.

Is this a common problem on a lot of trucks? My truck is the same way, the key only works in the ignition, NOT in the doors.

 

Also, is the programming sequence the same for all years of trucks? I have an '01 Sierra, if it makes a difference? Also, what is the going rate on the key fobs / best place to buy them???

 

Thanks

 

James

[star2323]

Ok looks like the truck I'm looking at does have keyless entry. Where is the best place to buy key fobs? It is a '03 so will the instructions above work for it?