Question about 2003 Chevrolet Impala

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How do i reset the security system on my 2003 chevy impala

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Are you reffering to the alarm or the pass lock system that put the theft light on.....If its the alarm the put the key in the door and unlock it. If its the pass lock system put the key in the ignition and turn it on and try to start the vehicle. After it shuts itself off leave the key on for ten min until the theft light stops flashing the turn key off and try to start it again. This may take a few times....

Posted on Jul 25, 2009

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I have a 2004 impala and every time, I try to start it the security light comes and and it blinks. The car won't start until some like 10 mins, What could possibly be wrong?

Posted on Apr 21, 2010

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SOURCE: serpentine belt diagram for 2003 chevy impala

send an email to chuckie12_87@yahoo.com and I will send the diagram to you

Posted on Jun 23, 2009

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SOURCE: 2003 chevy impala security light comes on and car

Your vehicle was build with a GM anti theft device. There is a chip built into the igntion key, when you insert the igntion key the sensor inside the igntion cylinder will read the chip from the key. If for some reason that communication is broken the computer will think someone is trying to steal your car by using the incorrect key.
The first thing I would do is use another key, if you only have one, go to your local GM parts department & have them make you a proper key. You'll need to show proff you own the car, so be prepared to show your drivers license & registration.
If this doesn't resolve your problem then the problem lies with the computer that controls this system. I would recommend to have a repair shop look at it only if they understand GM anti thieft system. you may need to take it to your local Chevy dealership service department.

Posted on Jul 09, 2009

emissionwiz
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SOURCE: reset security system on 2003 chevy malibu

PASSKEY LOCKOUT RESET GM CARS 1999 UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key.
If this doesn't do it u have a part failure and need to have the dealer test the system.

Posted on Nov 17, 2009

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SOURCE: 2003 chevy impala ls starts then stalls

I have replaced the radiator in my 2003 Chevrolet Impala LS. The car started running hot and shut down. Took it to a radiator shop and found a crack in the radiator. I have replaced 2 thermostats in the car already. I noticed water running from under my car today and it seems it was coming back out of the overflow. I am stumped as to what is going on with this car.

Posted on Jul 02, 2010

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SOURCE: Replaced ignition switch 2003 chevy impala and car will not start

After you replace the ignition switch turn the key to start the car and release leave the key were it stops after trying to start wait 10 minutes until security light goes out turn key to full off position then repeat the above procedure two more times for a total of three on the 3rd attempt to start car wait for light to go out then turn key to full off positoion wait 10 seconds then try to start car body control module should learn new pass code and the car should start.
Big john, J@J Automotive

Posted on Mar 02, 2010

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Does the "security" light come on? It may be an issue with the GM Passlock anti-theft system. There is tons of information on repairing the GM Passlock problems. Just search for "2003 Passlock issues."

Oct 27, 2014 | 2003 Chevrolet Impala

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Have 2003 chevy impala will not start. how do i by pass thy security system?


I was told u cant bypass security light - it may be a broken wire or a wire came off starter or it could be the key switch - mine would do that - leave key in the ignition (may have to leave ignition on) for any where from 11 - 30 minutes and see if it starts then - if it does I had to have the ignition replaced and there is a recall on those for that - it costed me $605 to get it fixed - waiting to here back from Chevy about getting reimbursed for it!

Jul 14, 2014 | 2003 Chevrolet Impala

1 Answer

How to reset security code on a Chevy impala 2003


If the security light has come on, that is indicating a problem in the antitheft system. Tho it may be intermittent right now, it can only get worse. Read thru this link, it will help you understand the problem, offer some tips and tricks, and show you some ways to bypass and fix it.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Mar 28, 2012 | 2003 Chevrolet Impala

1 Answer

My 2003 chevy impala will not start and security light flashes 3 times....what is the problem? this is a pain especially when i am trying to get to work on time....


Your vehicles anti theft system has failed. Go to this link for info http://vatspasslockpasskeysecurityhelp.yolasite.com/

Aug 12, 2011 | 2003 Chevrolet Impala

3 Answers

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I have a 2004 impala that did the same thing..the ignition switch needs to be replaced

Jun 11, 2011 | 2003 Chevrolet Impala

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2003 Chevy Impala intermittently won't start -


remove and clean the battery terminals ,

Aug 01, 2010 | 2003 Chevrolet Impala

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A 2003 Chevy Impala with low tire pressue signal on


On a Chevy Impala or Monte Carlo with indirect TPMS, a totally different reset procedure is required. You can use the light switch or radio to reset the system. With the light switch procedure, turn the ignition on (engine off), the turn the light switch from OFF to parking lamps three times within five seconds. With the radio technique, turn the ignition on (engine off). With the radio off, hold the DISP button until “SETTINGS” is displayed. Use the SEEK button to scroll down the menu until you see “TIRE MON.” Press the PREV or NEXT buttons until “RESET” is displayed. Then press the DISP button again. You should hear a chime and see “DONE” to indicate the TPMS system has been successfully reset. Use the SEEK button to scroll through the menu until “DONE” is shown, then press DISP once more to exit from the learn mode.
Thank you for using fixya and good luck

May 09, 2010 | 2003 Chevrolet Impala

1 Answer

2003 Chevy Impala. Security light comes on and car wont start


Leave the key in the on position for 20 to 30 minutes without trying to start the vehicle. In most cases a lose of power to the computer has happened and the security must be reset.

Jul 19, 2009 | 2003 Chevrolet Impala

1 Answer

Reset the security system after installing a swicth 2001chevy Impala


did you change the key? if you have it more than likely needs programmed as most of the gm's have either a resister based immobilizer or a passlock system. If its the same key check that you have all the connecters back at steering column as you may have disturbed the vat's one.

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