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How do I program a replacement fob for my 2003 Malibu (not remote-start equipped)?

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2 Answers 2

You need specialized equipment to break the encryption. The equipment will cost more than simply taking it to a dealer or remote and alarm specialist and having them do it. It's not an overly complicated job, but the equipment makes it infeasible.

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Yup, everything I'm seeing shows the 2003 Malibu as not being able to reprogram old or program new remotes. This will need to go to the dealership or a locksmith as you suggest. This sucks. I was able to program the remotes for the 2004 Suburban I used to own. Lost a set of keys, reprogrammed a new fob, then found the old set and had to reprogram it all again, lol. –  Paulster2 Jul 24 at 0:48

This may solve your problem. If your not too happy about it, check your local 'Yellow Pages' for a company selling and programming auto keys.

  1. Sit in the driver's seat
  2. Remove the ignition key from the ignition lock cylinder
  3. Close all the doors
  4. Press and hold unlock on the door lock switch (on the door)
  5. While holding the door lock switch in the unlock position, insert and remove the ignition key twice. DO NOT ROTATE THE KEY.. JUST SLIDE IT IN AND BACK OUT.
  6. Insert the ignition key the third time, leaving the key in the ignition cylinder. DO NO TURN KEY
  7. Release the door lock switch. You will hear 3 chimes indicating the transmitter programming is active.
  8. Press and hold the lock and unlock buttons on the keyless entry remote at the same time (one remote) for 12 seconds. You will hear two chimes. This indicates the transmitter has been programmed.
  9. Repeat step 8 for all additional transmitters to be programmed
  10. Exit programming by removing the key from the ignition cylinder
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