Programming a new key fob for your 2009 Buick LaCrosse might seem daunting, but it’s often a task you can handle yourself, saving time and money. This guide provides clear, expert-backed instructions for programming your 2009 Buick Lacrosse Key Fob, whether you have an existing working key or not. As automotive repair specialists at keyfobprog.com, we’re here to walk you through each process.
Programming Your 2009 Buick LaCrosse Key Fob with a Working Key (Standard Ignition)
This method is straightforward and applies if you already possess a programmed and functioning key for your vehicle. This procedure is designed to add new keys without erasing any previously programmed ones. Ensure that the new key is properly cut before beginning this programming process.
- Start Your Buick: Insert your original, working key into the ignition and start the engine.
- Turn Off and Remove Key: Once the engine is running, turn the ignition off and remove the original key.
- Insert New Key and Turn On: Within 10 seconds of removing the original key, insert the new, unprogrammed key into the ignition. Turn the key to the “on” position, but do not start the engine.
- Observe the Security Light: Keep an eye on the security light on your dashboard. Once the new key is successfully programmed, the security light should turn off. Due to the speed of programming, you might need to be attentive to notice the light turning off. If your 2009 Buick LaCrosse model doesn’t have a security light, wait for approximately 10 minutes and 45 seconds to ensure the key is programmed.
- Program Additional Keys (If Needed): If you need to program more keys, simply repeat steps 1 through 5.
Programming Your 2009 Buick LaCrosse Key Fob for Push Button Ignition
For 2009 Buick LaCrosse models equipped with push-button ignition, the programming procedure varies slightly. Follow the instructions below that match your situation:
1. Programming with at Least One Working Transmitter (Proximity Key)
If you have at least one functional transmitter (proximity key), you can program a new transmitter to your 2009 Buick LaCrosse. For this process, the vehicle must be off, and you need to have all transmitters – both the recognized ones and the new ones – with you. Make sure the key blade of the new transmitter is cut before you start.
- Place Working Transmitter: Put the recognized, already programmed transmitter into the cupholder of your Buick LaCrosse.
- Use New Key in Door Lock: Insert the new, unprogrammed key into the physical lock cylinder located on the outside of the driver’s door. Turn the key to the unlock position five times within a 10-second period. The Driver Information Center (DIC) in your vehicle should display “Ready For Remote #2, 3, 4, or 5.”
- Place New Transmitter in Pocket: Locate the transmitter pocket inside the center console storage area, underneath the cupholder. You’ll need to pull out the cupholder to access this pocket. Place the new transmitter into this pocket.
- Press Ignition: Press the ignition button. Once the transmitter is successfully learned, the DIC display will indicate that it’s ready to program the next transmitter.
- Remove and Test: Take the transmitter out of the transmitter pocket and press the unlock button to test if it’s working correctly.
To program additional transmitters, repeat Steps 3 through 5. Once you have programmed all desired transmitters, press and hold the ignition button for 5 seconds to exit the programming mode.
2. Programming When You Have No Working Transmitters
If you’ve lost all your working transmitters for your 2009 Buick LaCrosse, this procedure will guide you through programming up to five new transmitters. Be aware that this process takes approximately 30 minutes to complete. The vehicle must be off, and you need to have all the transmitters you wish to program with you. Ensure the key blade for each new transmitter is cut beforehand. It’s advisable to connect your vehicle to a power source, like jumper cables or a battery maintainer, as the car’s battery voltage may drop during this extended procedure.
- Use New Key in Door Lock (Initial Step): Insert the new key into the key lock cylinder on the driver’s door exterior and turn it to the unlock position five times within 10 seconds. The DIC will display “Remote Learn Pending, Please Wait.”
- Wait and Press Ignition (First Wait): Wait for ten minutes until the DIC display changes to “Press Engine Start Button To Learn.” Once you see this message, press the ignition button. The DIC will again display “Remote Learn Pending, Please Wait.”
- Repeat Wait and Press (Second and Third Waits): Repeat Step 2 two more times. After the third repetition, any previously known transmitters will no longer function with your vehicle. However, the new transmitters you are programming will be learned in the subsequent steps. The DIC should now show “Ready For Remote #1.”
- Place New Transmitter in Pocket: Put the new transmitter into the transmitter pocket located in the center console, under the cupholder. Pull out the cupholder to access the pocket.
- Press Ignition (Programming): Press the ignition button. When the transmitter is learned, the DIC display will indicate readiness to program the next transmitter.
- Remove and Test: Remove the transmitter from the pocket and press the unlock button to test.
To program additional transmitters, repeat Steps 4 through 6. After programming all your desired transmitters, press and hold the ignition button for 5 seconds to exit the programming mode.
Important Note: Your 2009 Buick LaCrosse can have up to five transmitters programmed to it in total.
By following these steps, you should be able to successfully program your 2009 Buick LaCrosse key fob. Remember to always double-check each step and ensure you have the correct keys and transmitters before starting the process. For any further assistance, especially if you encounter issues or are unsure about any step, consulting a professional automotive locksmith or your Buick dealership is always a wise decision.
