Lost the ability to remotely unlock your classic 1997 Cadillac DeVille? Or perhaps you’ve acquired a new key fob and need to get it working with your vehicle? Don’t worry, programming your 1997 Cadillac Deville Key Fob is a straightforward process you can accomplish yourself, without needing a trip to the dealership. This guide, based on the 1997 Cadillac DeVille service manual, will walk you through each step to program your key fobs and regain remote access to your car.
Programming Your 1997 Cadillac DeVille Key Fob
Before you begin, ensure you have both of your key fobs present. This is important because the programming sequence requires you to program both transmitters to the correct positions. If you only have one key fob, you can still use it for both programming slots, but ideally, having both allows for the standard setup.
Here’s how to program your 1997 Cadillac DeVille key fob:
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Initiate Diagnostic Mode: Turn your Cadillac DeVille’s ignition to the “ON” position but do not start the engine. Locate your climate control panel. Simultaneously press and hold the “OFF” and “Warm” buttons. Keep holding until the Instrument Panel System (IPS) illuminates all its indicator lights, goes blank momentarily, and then enters diagnostic mode. This might take a few seconds.
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Navigate to RFA System: Once in diagnostic mode, use the “FAN Down” button to scroll through the system options. Continue pressing “FAN Down” until you see “RFA?” displayed on the climate control screen. Once you see “RFA?”, press the “FAN UP” button to select it.
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Access RFA Override: Again, use the “FAN Down” button to scroll through the RFA options. This time, scroll until you find “RFA OVERRIDE” displayed. When “RFA OVERRIDE” appears, press the “FAN UP” button to select it.
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Enter No Override Mode: The display should now show “NO OVRD RF S00”. Press the “FAN UP” button once more to proceed.
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Prepare to Program Fob 1: The display will change to “PGM FOB1 S01”, indicating the system is ready to program the first key fob. At this point, press the “WARM” button on the climate control panel. You should see “99” appear in the upper left corner of your instrument panel cluster, just below the odometer. This confirms the system is in programming mode for transmitter 1.
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Program Transmitter 1: Now, take your first key fob and follow these steps quickly:
a. Press and hold the “TRUNK” button on the key fob.
b. While still holding the “TRUNK” button, press and hold the “LOCK” button for one second.
c. Continue holding both the “TRUNK” and “LOCK” buttons for a total of three seconds.
d. If the programming is successful, you will see the car’s door locks cycle (lock and unlock).
e. If the transmitter is not programmed within 30 seconds of the “99” override display appearing, the system will time out, and you will need to restart from step 5. -
Program Transmitter 2 (Optional): If you have a second key fob to program, or if you want to program the same key fob to the second transmitter slot, press the “FAN UP” button. The display will change to “PGM FOB2 S02”, indicating it’s ready for the second transmitter.
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Program Transmitter 2 (Steps Repeated): Repeat steps 5 and 6 using your second key fob (or the same key fob again if you only have one).
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Exit Programming Mode: Once you have programmed all desired key fobs, press the “RECIRC” or “RESET” button on the climate control panel to exit the system. The programming process is now complete. Test both key fobs to ensure they are working correctly with your 1997 Cadillac DeVille.
Synchronizing Your 1997 Cadillac DeVille Key Fob
Sometimes, even after programming, your key fob might seem out of sync with your vehicle. If you experience inconsistent performance, you might need to synchronize your key fob. Here’s the synchronization procedure for your 1997 Cadillac DeVille key fob:
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Initiate Synchronization: Press and hold the “TRUNK” button on the key fob.
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Press Lock Button: Within one second of pressing the “TRUNK” button, press and hold the “LOCK” button as well.
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Hold Both Buttons: Continue to hold both the “TRUNK” and “LOCK” buttons for approximately seven seconds, and then release both buttons simultaneously.
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Test Functionality: After releasing the buttons, test the key fob’s functions. If the transmitter was out of synchronization, it should now function properly.
By following these steps, you should be able to successfully program or synchronize your 1997 Cadillac DeVille key fob and enjoy the convenience of remote access to your vehicle once again. If you continue to experience issues, or for more complex car key and remote programming needs, visit keyfobprog.com for further assistance and resources.
