Question about 2003 Chevrolet Malibu

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My 2003 Malibu sometimes won't start, due to the activation of the anti-theft system. I have to sit there for 10 minutes with the key on, then start the car. I have new remotes now, still have the problem.

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  • carl May 11, 2010

    to disable system,try this. press the stereos 1 and 4 buttons at the same time for 5 seconds with the ignition on and the radio power off. the display will show sec, indicating the unit is in secure mode (anti theift feature enabled). press the mn button. the display will show "000". press the mn button until the last 2 numbers are the same as your secret code. press hr until the first 1 or 2 numbers displyed match your code. the numbers will be displayed as entered. press am/fm . if the display shows"---" you have successfully disabled system. if sec is displayed, the code you entered is incorrect and the anti theft feature is still enabled. ( if you have a secret code then this will work). if this does not work call a chevy mechanic to see what to do.

  • Karie Baker Nov 27, 2011

    How do I find the code?

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  • Chevrolet Master
  • 3,640 Answers

To by pass anti theft system. ( all gms ). go to site--newrockies.ca/vatsbypass.

Posted on Aug 23, 2010

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