2011 Mitsubishi Galant Key Fob Battery: Programming and Replacement Guide

Is your 2011 Mitsubishi Galant key fob not working as reliably as it used to? You might be facing a dead key fob battery or need to reprogram your key fob. This guide provides step-by-step instructions to help you program your 2011 Mitsubishi Galant key fob and also covers essential information about the key fob battery.

Programming the Key Portion of Your 2011 Mitsubishi Galant Key Fob

Before you begin, it’s important to note that these instructions are for programming the key portion of your remote head key. This allows your key to start the ignition. You will first need to have your new key cut by a locksmith to match your vehicle’s ignition.

Here’s how to program the transponder chip in your key:

1. Insert a Working Key: Place an existing, working key into the ignition cylinder.
2. Turn Ignition ON: Turn the ignition to the “ON” position (without starting the engine) and hold it for 5 seconds. Then, turn the ignition back to the “OFF” position and remove the key.
3. Insert Second Working Key: Within 10 seconds, insert a second working key into the ignition and turn it to the “ON” position. You should see the security light flash twice. Turn the ignition back to “OFF” and remove the key.
4. Insert New Key: Within 10 seconds, insert the new, unprogrammed key into the ignition and turn it to the “ON” position.
5. Wait for Security Light: The security light should illuminate for approximately 3 seconds. This indicates that your new key has been successfully programmed to start your 2011 Mitsubishi Galant.
6. Test and Program Additional Keys: Turn the ignition to “OFF” and remove the newly programmed key. Test if the new key starts your car. If you have more keys to program, repeat steps 4 and 5. Remember, all new keys must be programmed within 30 seconds of step 3.
7. Exit Programming Mode: To exit programming mode if you have finished, simply leave the ignition switched to the “ON” position for more than 30 seconds.

Programming the Remote Portion of Your 2011 Mitsubishi Galant Key Fob

Once the key portion is programmed to start your car, you’ll need to program the remote portion to control features like locking and unlocking your doors. This process involves using the OBD-II data port in your Mitsubishi Galant.

1. Locate the Data Port: The OBD-II data port in your 2011 Mitsubishi Galant is typically located under the driver’s side dashboard, usually to the right of the steering column.

This image shows the general location of an OBD-II data port, commonly used for car key fob programming.

2. Insert Keys and Turn to OFF: Insert your key into the ignition and leave it in the “OFF” position.
3. Prepare Jumper Wire: Ensure that there are metal contact pins in terminals 1 and 4 of your OBD-II port. Use a suitable jumper wire to connect terminals 1 and 4. Keep the jumper wire connected throughout the programming procedure. It’s crucial to correctly identify terminals 1 and 4; consult your vehicle’s service manual if needed.
4. Press Hazard Switch: Within 10 seconds of connecting the jumper wire, press the Hazard Switch 6 times. The doors should automatically lock and unlock once, indicating that the system has entered programming mode.
5. Press LOCK Button on Remote: On the remote you want to program, press the “LOCK” button three times within 10 seconds. If programming is successful, the doors will lock and unlock once again.
6. Program Additional Remotes: Repeat step 5 for up to 4 remotes, including any existing remotes you wish to continue using. You have one minute to program all remotes. Each successful programming will be indicated by the doors locking and unlocking.
7. Disconnect and Test: Disconnect the programming wire from the OBD-II port and remove the key from the ignition. Test all programmed remotes to ensure they are working correctly.

2011 Mitsubishi Galant Key Fob Battery Replacement

While programming is crucial, sometimes a non-functioning key fob simply needs a new battery. The 2011 Mitsubishi Galant key fob typically uses a CR2032 battery. Replacing the battery is a straightforward process:

1. Open the Key Fob: Locate the small notch or release button on your key fob casing. Use a small flathead screwdriver or your fingernail to gently pry open the case.
2. Remove Old Battery: Carefully remove the old CR2032 battery. Note the orientation of the positive (+) and negative (-) sides.
3. Insert New Battery: Insert the new CR2032 battery, ensuring the correct polarity.
4. Close the Key Fob: Snap the key fob casing back together until it is securely closed.

After replacing the battery, test your key fob to see if it now operates correctly. If it still doesn’t work, reprogramming might be necessary, or there could be other issues with the key fob itself.

By following these instructions, you can address common key fob issues for your 2011 Mitsubishi Galant, whether it’s programming a new key or simply replacing the battery. Always ensure you are following safety precautions and consult a professional locksmith or mechanic if you encounter any difficulties.