1999 Chevrolet Malibu ingintion switch

Tiny
KRYFORD2
  • MEMBER
  • 1999 CHEVROLET MALIBU
I replace the key switch on my car and when I went to crank it a theft system light came on it cranks but wont stay cranked up how do we get it to stay cranked and the theft system light to go off? I have taken the battery out to see if they would work and it did not is they any other way to fix it or do I just take it into a dealership?
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Thursday, July 18th, 2013 AT 9:11 PM

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Tiny
CARADIODOC
  • EXPERT
GM has cleverly designed their newer cars to need to be taken to the dealer for a lot of reprogramming of computers but yours is old enough that you may be able to do the anti-theft relearn procedure yourself.

30 Minute Re-Learn Procedure
1. Turn ON the ignition, with the engine OFF.
2. Attempt to start the engine, then release the key to ON (vehicle will not start).
3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
4. Turn OFF the ignition, and wait 5 seconds.
5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes ( the vehicle is now ready to relearn the Passlock‚ Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK).
Important
The vehicle learns the Passlock‚ Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
6. Start the engine (the vehicle has now learned the Passlock‚ Sensor Data Code and/or password).
7. With a scan tool, clear any DTCs if desired (history DTCs will self clear after 100 ignition cycles).
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Friday, July 19th, 2013 AT 12:19 AM

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