Question about 2001 Chevrolet Impala

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2001 impala passlock relearned and still won't start

I just replaced the cylinder key lock on my car and tried to relearn the passlock code and car still won't turn on... when i turn key in attempt to crank all light's on dash board go off for about 2 sec then back on, when i let go. very pissed off! lol

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Check the battery make sure you have 12v, check all fuse and relays. if all is good get the key repprogramme

Posted on Aug 01, 2009

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I bypassed the whole system with a resistor ...paid my electrician $150

Posted on Jan 07, 2010

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My son has a Chevy Impala 2002.He just replaced the ignition switch and lock cylinder and it won't start


There is an adjustment for the neutral safety switch which is located on the top of the steering column close to the pedals. Be certain that the rod from the cylinder is in the switch. If it isn't then loosen the two screws holding the switch down and place rod into the notch of the switch. Adjust as necessary to start vehicle. Disable the coil at the distributor so that it doesn't start and go into gear.

Jul 02, 2017 | Cars & Trucks

1 Answer

How to disconnect passlock in a 2003 Chevrolet impala


You can't. Older GM's could bypass the key with a resistor, But it still had to have the security disabled. Yours is I believe a passlock III. You'll have to fix the problem. Could be as easy as a new key and a relearn procedure. Have the codes read.

Feb 19, 2016 | 2003 Chevrolet Impala

1 Answer

2004 Chevy impala won't start sometimes


Is the "Security" light coming on?. If so, there is a problem with the Passlock key antitheft system. It is common for the ignition cylinder key detection contacts to go bad.

Replacing the key cylinder fixes the problem. The new cylinder has to be "relearned". See the internet and search for "2004 Chevrolet passlock system relearn procedure".

Sep 26, 2014 | 2004 Chevrolet Impala

1 Answer

Security light stays on, 2005 Impala, car starts every time


Did you check for error codes (DTCs) using a scanner that will check the BCM codes? A GM dealer's scan tool would probably find the problem right away. The security light driver in the BCM could be faulty, although that probably won't throw a code.

Mar 10, 2017 | 2005 Chevrolet Impala

1 Answer

2000 chevy venture won't crank with key


The pk3 system has a sensor ring around the lock cylinder these go bad a relearn will not fix this because no security code is being sent to the pass key module.

Mar 23, 2014 | 2000 Chevrolet Venture

1 Answer

2005 impala security light on


now there is a way to Bi pass the system. yes I said bi pass. the pass lock system GM uses is junk. they should have fixed the issue with a recall years ago. there are a few ways to also check if it is the system itself though. the first part is a relearn of the key.

turn the key like you are going to start the car ( but do not start it) let the key sit there for 10 min ( repeat this step total of 3 times) o the 3rd time after the 10 min is up try to start the car. If it starts you should be good to go. If it don't start you can go ahead and go to local junk yard. get a cross reference from the people behind the counter of what you need. it will be the ignition lock cylinder that you need. ( yes the entire lock cylinder ) also if you are savvy enough get the trunk and the door locks too. ( that way you don't have a bunch of keys on your key chain just 1 key. ) but you replace the lock cylinder ( since the cylinder itself has the chip for the security system in it) then you do the relearn all over again. this should solve the problem with the car. I have done this a few times on GM vehicles because the pass lock system is junk. to bypass the system just ask and I will send you a link for the instructions on how to do it.

Mar 17, 2014 | 2001 Chevrolet Impala

1 Answer

Light Security Stays on after code learned


that\'s the thing about new cars. they suck. all this electrical this, electrical that, you are sheit out of luck bud. junk it and buy something older that most people know how to fix.

Oct 24, 2013 | Cars & Trucks

1 Answer

Pass lock problems


Your Passlock may need to relearn the ignition keys, if the ignition lock has gone bad like my in-laws Grand Am Gt, here is what i did so they will not get stranded any more. Buy a Passlock by pass module for around $70.00. You can order one from GMPASSLOCK.COM in the mean time try resetting the Passlock. Good luck

Ignition keys relearn takes about 30 min to do. 30-Minute Learn Procedure
1.) Turn ON the ignition, with the engine OFF.
2.) Attempt to start the engine, then release the key to ON; the vehicle will not start.
3.) Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF.
4.) Turn OFF the ignition switch, and wait 5 seconds.
5.) Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes.
The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK Important: Turn the Ignition Switch OFF. 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 needed. History DTCs will self clear after 100 ignition cycles.

Without a scan tool you may have momentary starter interruptions while history clears itself.



Jan 18, 2010 | 2000 Chevrolet Impala

1 Answer

Well i put a new starter on the car the the theft light stays on will it fix the problem if i take it to the dearler to put an ingition lock cyclinder in it because my car want start.


Your Passlock may need to relearn the ignition keys, if the ignition lock has gone bad like my in-laws Grand Am Gt, here is what i did so they will not get stranded any more. Buy a Passlock by pass module for around $70.00. You can order one from GMPASSLOCK.COM in the mean time try resetting the Passlock. Good luck

Ignition keys relearn takes about 30 min to do. 30-Minute Learn Procedure
1.) Turn ON the ignition, with the engine OFF.
2.) Attempt to start the engine, then release the key to ON; the vehicle will not start.
3.) Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF.
4.) Turn OFF the ignition switch, and wait 5 seconds.
5.) Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes.
The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK Important: Turn the Ignition Switch OFF. 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 needed. History DTCs will self clear after 100 ignition cycles.

Without a scan tool you may have momentary starter interruptions while history clears itself. Keep me posted, be glad to know you got your car running 100% again soon.

Jan 13, 2010 | 2001 Chevrolet Malibu

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