How do you program keyless entry for a 2004 Chevy Tahoe?

Answer 1

This will work on new remotes you just purchased or on old remotes that you may have had batteries replaced that lost program. It must be followed exactly.

First, hold down the unlock button on your door and keep it held down. While holding down, turn ignition key on (two clicks) and off two times (dont start vehicle). The speed at which you do this is not important, but just turn to where the radio will play and the instrument panel lights up. After you have done this the unlock-lock will cycle on your doors automatically and the horn will sound. Now, you can let go of the unlock button on door. Next hold the Lock and Unlock buttons on the remote, both at same time for 15 to 20 seconds, until your doors cycle thru lock-unlock. They will do this automatically while you are holding both remote buttons. If you have more than one remote repeat the last step for each remote in succession. On a 2004 Tahoe you can have up to four remotes programmed. Now, Turn the key on again and then off. The locks should cycle and the horn will sound. This should set your remote to work. If this does not work, there may be a problem with the remote or you may have a remote not compatible with vehicle or even dead battery in remote. Many remotes look identical, but will not work unless they have the correct ID number.

If you have simply replaced the battery in your remote you should be able to resynchronize the remote without reprogramming all remotes. This is in your owner's manual and is done by standing close to your vehicle and holding both the lock and unlock buttons for 15 to 20 seconds. The door locks should cycle and there you go!