Mail.comhave a 2005 chevy malibu, lost the keys so i got a new key, trying the keylearn procedure and its not accepting the new key, any ideas i have talked to many peoiple they all say im doing it right, i even finally found my autostart keychain for it and i cant even start it with that. any help would be nice.

Question edited for clarity.
Question moved to model category.

Sorry to hear that happened to you. Try resetting the anti-theft system.

https://www.google.com/search?q=2005+Chevy+Malibu+reset+security

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You got another computer from where ? Was it programmed ? Anti-theft system key's programmed to new computer also ? Oil pressure switch is in the black connector - have seen bad oil pressure switch wick oil through the wire strands into the computer ,also bad coolant temp. sensor do the same thing .

you forgot to program the new key to the immobilizer

Try this theft relearn procedure....
Chevy Malibu Theft Relearn Procedure
If it does not work, you may need a new ignition key cylinder.

Since you have a Malibu, you have to take it to a Chevy dealer. They have a hand-held computer they plug into your car to activate the BCM ( body control module) to go into programming mode to accept the new transmitter. Probably cost around $50-$60? You can call them for an estimate.

Not sure about Chevy's, but when my husband lost his keys for his Ford, he got a new key programmed, and when he found his "lost" key, it still worked. Try it. Don't think it will hurt it if it doesn't work, but check with a dealer.

Unfortuneately the key has to be programmed to the car. the old key wont work unless it is also reprogrammed at the same time the new key is programmed.

Key FOB programming is definately not a dealer only job, as much as they'd like you to think it is!:disappoin Try this procedure. It's a pretty standard procedure across the GM line: (write-up compliments of nat3ten from trailblazer forum)


"1 SIT IN VEHICLE AND CLOSE DOOR

2 HOLD FINGER DOWN ON UNLOCK POWER DOOR LOCK SWITCH ON DRIVERS DOOR.

3 put key in ignition, TURN IGNITION ON / OFF , ON / OFF.LEAVE KEY IN IGNITION.(DO NOT START VEHICLE, ON POSITION IS THE POSITION BEFORE START)

4 RELEASE FINGER FROM POWER DOOR LOCK.POWER DOOR LOCKS WILL CYCLE.(JUMP UP AND DOWN)

5 PRESS AND HOLD BOTH THE LOCK AND UNLOCK BUTTONS ON NEW REMOTE UNTILL YOU HEAR POWER DOOR LOCKS CYCLE.(JUMP UP AND DOWN) YOU MAY HAVE TO HOLD BOTH BUTTONS DOWN FOR 5- 20 SECONDS.

6 TAKE 2ND NEW , OR OLD REMOTE AND HOLD BOTH UNLOCK AND LOCK BUTTONS DOWN UNTILL LOCKS CYCLE.(MAY TAKE 5- 20 SECONDS)


7 TURN KEY ON, THEN OFF.
YOU ARE DONE, EXIT VEHICLE AND TRY YOUR REMOTE."

If you just need an ignition key, take your title and ID to a Chevy dealer. They may be able to provide you with new keys.

They key has a compter chip that inplanted in the key. A dub key wouldn't work. Take your title or registration with some form of picture id to any GM dealer and the would be able to make you a key. It will cost a few bucks, prices vary.