Programming your 2002 Cadillac DeVille key or key fob can seem daunting, but with the right instructions, it’s a straightforward process you can do yourself. Whether you need to program a new transponder key because you’ve lost all your keys, or you want to program a duplicate key or key fob for convenience, this guide will walk you through each step. Please note that these programming procedures are specifically for USA-built 2002 Cadillac DeVille vehicles.
Programming a New 2002 Cadillac DeVille Transponder Key When You Have No Working Keys
If you’ve lost all your existing keys, you can still program a new transponder key yourself after having it cut by a locksmith. Here’s how:
-
Insert the newly cut, unprogrammed key into the ignition cylinder. Turn the key to the ON position. This is the position just before you would crank the engine. You should see the security light on your dashboard illuminate and remain lit.
-
Wait for ten minutes. The security light will stay on for a full ten minutes. Once the security light turns off, you have a one-minute window to proceed to the next step.
-
Turn the ignition cylinder to the OFF position, and then immediately back to the ON position again. Again, the security light will illuminate and remain on for another ten minutes. Once it goes out, you have another one-minute window.
-
Repeat the process one more time. Turn the ignition cylinder to the OFF position and then back to the ON position for the third time. The security light will illuminate for a final ten minutes.
-
After the security light turns off for the third time, turn the ignition key to the OFF position and remove the key from the ignition. At this point, your new key is programmed, and any previously programmed keys have been erased for security.
-
Test the newly programmed key. Insert the key back into the ignition and start your 2002 Cadillac DeVille to ensure successful programming.
Programming a Duplicate 2002 Cadillac DeVille Transponder Key When You Have a Working Key
If you already have a working programmed key and want to program a duplicate, the process is quicker:
-
Insert your existing, working programmed key into the ignition cylinder.
-
Turn the ignition to the ON position and then immediately turn it back to the OFF position. Do this quickly.
-
Remove the existing programmed key from the ignition. Within 10 seconds of removing the working key, insert the new, unprogrammed key that has been cut by a locksmith into the ignition cylinder. Turn this new key to the ON position.
-
Watch for the security light. The security light on the dashboard should light up for approximately two seconds. This brief illumination indicates that the new key has been successfully programmed as a duplicate. Remove the key from the ignition.
-
Test the duplicate key. Insert the newly programmed duplicate key into the ignition and start your 2002 Cadillac DeVille to verify that it works correctly.
2002 Cadillac DeVille Key Fob Programming Instructions
For instructions on how to program your 2002 Cadillac DeVille key fob (remote), please visit ProgramYourRemote.com. This external resource provides specific steps for programming the keyless entry remote for your vehicle.
By following these steps, you can easily program your 2002 Cadillac DeVille transponder keys. Remember to consult a professional locksmith if you encounter any difficulties or prefer to have your keys programmed by an expert.
