2002 Impala Key Fob Programming: Your DIY Guide

Lost your key fob or need to program a new one for your 2002 Chevy Impala? You’re in the right place. Programming your key fob can often be done at home, saving you a trip to the dealership. This guide provides two methods to program your 2002 Impala key fob, depending on whether you have access to a Tech2 scan tool.

Method 1: Programming Your 2002 Impala Key Fob Without a Tech2 (DIY)

This method is for those who prefer a do-it-yourself approach and don’t have access to professional diagnostic tools like a Tech2 scanner. It utilizes your car’s built-in programming system through the radio controls.

Here’s how to program your 2002 Impala key fob without a Tech2:

1. Get in your Impala: Enter your 2002 Chevy Impala from the driver’s side and ensure all doors are closed.
2. Ignition On: Insert your key into the ignition switch and turn it to the “On” position. Do not start the engine. Just turn the key far enough to power the car’s electronics.
3. Access Radio Settings: Locate the “DISP” button on your car radio. Press and hold the “DISP” button for about five seconds. This will bring up the settings menu on your radio display.
4. Navigate to “FOB PROG”: Use the “Up” or “Down” arrow buttons on your radio to scroll through the settings menu. Look for the option labeled “FOB PROG” (or Key FOB Programming).
5. Enter Programming Mode: Once you find “FOB PROG”, press the “DISP” button again to select it. The radio display should now show “PUSH FOB”, indicating it’s ready to learn a new key fob.
6. Program the Fob: Immediately take the key fob you want to program. Simultaneously press and hold both the “Lock” and “Unlock” buttons on the fob for about 15 seconds. Keep holding until you hear the car chime. This chime confirms that the key fob has been successfully programmed.
7. Program Additional Fobs (If Needed): If you have more key fobs to program, repeat steps 4, 5, and 6 for each additional fob. The system usually allows programming up to four key fobs.
8. Exit Programming Mode: To exit the programming mode, use the “Up” or “Down” arrow buttons on the radio again to find the “Exit” command in the settings menu. Press the “DISP” button to select “Exit”. You should hear another chime, confirming that you have exited the programming mode.
9. Test Your Fobs: Finally, test all programmed key fobs to ensure they are working correctly by locking and unlocking the doors, and activating any other remote functions your fob may have.

Method 2: Programming Your 2002 Impala Key Fob with a Tech2 Scan Tool

This method requires a Tech2 scan tool, which is a professional diagnostic tool often used by mechanics and dealerships. This method is generally more straightforward if you have access to a Tech2.

Here are the steps to program your 2002 Impala key fob using a Tech2 scan tool:

1. Connect the Tech2: Install and connect your Tech2 scan tool to your 2002 Chevy Impala’s diagnostic port.
2. Navigate to Key Fob Programming: Using the Tech2 scan tool, navigate through the menus to access the key fob programming function. Typically, this involves going to: “Vehicle Control System” -> “Computer Integrating System” -> “Module Setup” -> “BCM” (Body Control Module) -> “Program Key Fobs”. Menu names may slightly vary depending on your specific Tech2 software version.
3. Start Programming: Once you reach the “Program Key Fobs” menu, select or press the “START” soft key on the Tech2 scan tool to initiate the programming sequence. Important: Keep the Tech2 scan tool connected throughout the entire programming process.
4. Program the First Fob: Take the first key fob you want to program. Simultaneously press and hold the “LOCK” and “UNLOCK” buttons on the fob for 5–10 seconds. Watch the Tech2 screen; it should indicate when the transmitter (key fob) is programmed.
5. Program Additional Fobs (If Needed): Repeat step 4 for any additional key fobs you need to program, up to a maximum of four.
6. завершение Remove Scan Tool: Once you have programmed all desired key fobs, safely disconnect the Tech2 scan tool from your Impala.
7. Verify Operation: Test each programmed key fob to ensure it correctly operates the door locks and other remote functions of your 2002 Chevy Impala.

Important Notes for Both Methods:

• Program All Fobs at Once: When you enter programming mode, the system will erase all previously programmed key fobs. Therefore, you must program ALL key fobs you want to use during a single programming sequence.
• Avoid Programming Near Other Vehicles: Do not attempt to program your key fobs in close proximity to other vehicles that might also be in keyless entry programming mode. This can prevent accidental programming to the wrong vehicle.

By following these methods, you should be able to successfully program your 2002 Chevy Impala key fobs and regain remote access to your vehicle. If you encounter any difficulties, or prefer professional assistance, always consult a certified mechanic or your local Chevrolet dealership.