How to Program a 2015 Buick LaCrosse Ignition Smart Chip Key Transponder

Step by Step How to Programming Instructions:

To program spare remote head keys, you’ll need two previously programmed keys and the new unprogrammed key ready. If you don’t have two previously programmed keys, you’ll require a locksmith to cut and program a second key. Here’s how to do it:

1. Insert the first previously programmed key into the ignition.
2. Switch the ignition from off to on. Keep it on for at least three seconds, but no more than ten seconds.
3. Turn the ignition off and remove the first programmed key.
4. After three seconds but within ten seconds of turning the ignition off, insert the second previously programmed key into the ignition.
5. Switch the ignition from off to on. Keep it on for at least three seconds, but no more than ten seconds.
6. Turn the ignition off and remove the second previously programmed key.
7. After three seconds but within ten seconds of turning the ignition off and removing the previously programmed key, insert the new unprogrammed key into the ignition.
8. Switch the ignition from off to on. Keep it on for at least six seconds.
9. Remove the newly programmed key from the ignition. If it’s successfully programmed, it will start the engine and operate the remote entry system (if it’s an integrated key head transmitter). If not, wait ten seconds and repeat steps 1 through 8.

Programming Spare Intelligent Access Keys:

To program spare Intelligent Access Keys, you’ll need two previously programmed keys inside the vehicle and the new unprogrammed keys ready. If you don’t have two previously programmed keys, you’ll need a locksmith to program the spare key(s). Here’s how to do it:

1. Place the new unprogrammed Intelligent Access Key in the pocket inside the glove box.
2. Press the driver or passenger power door unlock control three times.
3. Press and release the brake pedal once.
4. Press the driver or passenger power door lock control three times.
5. Press and release the brake pedal once. The indicator on the Start/Stop button should begin to rapidly flash, indicating programming mode and detecting two programmed Intelligent Access Keys in the vehicle.
6. Within one minute, press the start/stop button. A message will be displayed on the message center indicating that the new Intelligent Access Key was programmed. If four Intelligent Access Keys are already programmed, you cannot program more, and a message “MAX#OFFOBSLEARNED” will be displayed.
7. Remove from the glove box pocket and press the unlock or lock control on the newly programmed Intelligent Access Key to exit programming mode.
8. Verify that the remote entry functions operate (lock, unlock) and that the vehicle starts with the new Intelligent Access Key. If successfully programmed, it can be used to activate the Intelligent Access with Push Button Start feature and start your vehicle.