Passlock Security system...
Twyla

Ackerman, MS

#143 Aug 20, 2009
I am so sick of this problem with my car. There has to be a way to bypass this security thing by unplugging some wires or something. Sometimes my car cranks after ten minutes, but I've had to wait over an hour at times. Imagine getting off work, ready to go home, and you car won't start. This is ridiculous and they should recall this problem. If anyone knows anything, please email me at [email protected] I probably won't think to get back on this site.
Brian

Auburn Hills, MI

#144 Aug 24, 2009
Josh wrote:
anyone know how to turn of the friggin passlock security system or unplug something temporarily?
Nope. You can't unplug it. The only way is to bypass the system. I'm now going through the process of getting someone to do it for me. Either way you do it you will get SCREWED. Email this guy at [email protected] and ask for the PDF file on how to bypass. Good luck
DAN

Chicago, IL

#145 Aug 27, 2009
The real issue is not the ignition passlock system it is your ignition switch. Inside your ignition switch one of the contacts that closes when you turn the key in start position is partially burned out. Due to the imperfect contact, there is a voltage drop on that contact so the signal generated by the hall sensor is getting out of range therefore the BCM (body control module) will not recognize your "key" rather said the signal generated by turning your key and it will prevent the car to start for 10 min. Most of the times after 10 min it will start. The fix is not easy but it is cheap. All you need is some sand paper. You will have to take out your ignition switch. There are expalnation on the web on how to get to it. Once the switch is out take it apart and clean the contacts inside (there are 5 of them). One of them at least is burned out. Also bend the steel springs that are holding the contacts closed or open so they will push the contacts open or close properly. I did this and had no issues since-3 years ago. You can repalce the switch if you are willing to pay 110 dollars for the part (I was not). Good luck with your repair.
Brian

Auburn Hills, MI

#146 Aug 27, 2009
I had this problem for over a year. I finally took it to a mechanic and asked him to do the bypass. Well they said they would do it but they tried to fix it instead. They told me the "passlock" was bad. If your problem is intermitent (sometimes it starts normal) then the passlock is not bad. They lied. They also told me my OHM reading were all over the chart. Also a lie. I knew they lied as soon as they said it. I challanged everything they did. Finally they got pissed off and told me to just come and get the car. The real problem is oxidized contacts on the passlock. They have to be cleaned even if they look clean. High humidity areas are most at risk for this. My car is now fixed and I trust it again. Do your homework and don't let a garage tell you you have bad parts in the system.
Monica

Webster, MA

#147 Sep 13, 2009
can't start my chevy impala 2001. went dead when I touched the trunk latch. I have a factory security system in the car. Help!!!
Monica

Webster, MA

#148 Sep 13, 2009
can't start my chevy impala 2001. touched the trunk latch and all went dead. have a factory security system in the car Help!!
Technician R

Buckeye Lake, OH

#149 Sep 13, 2009
Monica wrote:
can't start my chevy impala 2001. touched the trunk latch and all went dead. have a factory security system in the car Help!!
Is the entire cars electrical system dead? Do the headlamps come on? Any power anywhere? More information is needed to get an idea of what might be happening. If there is absolutely no power at all anywhere on the vehicle you may have a loose battery terminal or excessive corrosion at one of the battery terminals.
Elena

Dillon, SC

#150 Oct 13, 2009
How do I reset the security system in my 2006 Chevy Uplander?
Technician R

Buckeye Lake, OH

#151 Oct 14, 2009
Elena wrote:
How do I reset the security system in my 2006 Chevy Uplander?
See your owners manual!
Al B

Delta, Canada

#152 Oct 18, 2009
My 2002 Impala LS 3.8L motor vehicle (66,600 kms) is sitting in my driveway. It simply won't start. When I turn the key to "On" the passlock system's warning light flashes three times. I spent this weekend browsing the Web for solutions, and a mechanic friend has beening methodically trying to find-out what's causing the problem. He's going to try again this morning. If he does not find the cause, I shall be contracting GM Canada tomorrow (Monday) morning, and if GM does not properly deal with my complaint, I shall be commencing a small claims court act to effect recovery for, among other things, any costs I incur to have the problem remedied. My resolve is predicated upon reading all of the other Impala owners who have experienced the same problem without GM accepting responsibility for this built-in, hidden, factory defect. That which makes things worse is that I like my car, and it is not only disheartening but also inconceivable that GM has not addressed the problem with a factory recall bulletin.
Technician R

Buckeye Lake, OH

#153 Oct 18, 2009
Al B wrote:
My 2002 Impala LS 3.8L motor vehicle (66,600 kms) is sitting in my driveway. It simply won't start. When I turn the key to "On" the passlock system's warning light flashes three times. I spent this weekend browsing the Web for solutions, and a mechanic friend has beening methodically trying to find-out what's causing the problem. He's going to try again this morning. If he does not find the cause, I shall be contracting GM Canada tomorrow (Monday) morning, and if GM does not properly deal with my complaint, I shall be commencing a small claims court act to effect recovery for, among other things, any costs I incur to have the problem remedied. My resolve is predicated upon reading all of the other Impala owners who have experienced the same problem without GM accepting responsibility for this built-in, hidden, factory defect. That which makes things worse is that I like my car, and it is not only disheartening but also inconceivable that GM has not addressed the problem with a factory recall bulletin.
Very likely a faulty ignition switch "passlock sensor". You will probably be replacing your complete ignition switch key cylinder. The passlock sensor is sold with the complete ignition lock cylinder. It is very easy to install for someone with light mechanical ability but does require a procedure for the new passlock sensor to learn the password from the PCM. The procedure takes 30 minutes and must be done correctly or the vehicle will not start. Cost of part is about $200.00. This will include coding your original key to the new ignition lock cylinder.
Al B

Delta, Canada

#154 Oct 20, 2009
I'm pleased to advise that, through the services of my mechanic friend, I managed to manually reset the passlock system's password (code). The procedure from start to finish took me 35 minutes, and yes, one has to follow the steps exactly as setout. I'm going to take your advice, and change the complete ingnition switch key cylinder. Thank you very much for the reply. I'm sincerely grateful.
frank

AOL

#155 Oct 26, 2009
John wrote:
to bypass or reset the security system turn the key to the on position and wait 10 minutes... the security light should stop flashing... then turn the key off for 5 seconds and then restart the car. the problem is in the tumbler itself and to fix the problem you will need to replace the tumbler.
I replaced the tumbler and that is not the answer
Technician R

Mansfield, OH

#156 Oct 27, 2009
frank wrote:
<quoted text> I replaced the tumbler and that is not the answer
The complete ignition lock cylinder needs to be replaced. This will include the "Passlock Sensor". Some Impala's also had a faulty BCM resulting in a similar issue.
Al B

Delta, Canada

#157 Oct 30, 2009
Frank should do precisely that which John wrote, but he will have to do the functions three times. Yes, three times, which means the whole process will take approximately 30 minutes. On the third try the car should start.
Al B

Delta, Canada

#158 Oct 30, 2009
frank wrote:
<quoted text> I replaced the tumbler and that is not the answer
Frank should do precisely that which John wrote, but he will have to do the functions three times. Yes, three times, which means the whole process will take approximately 30 minutes. On the third try the car should start.
rick

Victoria, Canada

#159 Nov 17, 2009
my 07 gmc won"t start I think because of the security system. What do I do
rick

Victoria, Canada

#160 Nov 17, 2009
My 07 gmc won"t start . I think it"s because of the security system. What do I do ?
Technician R

Mansfield, OH

#161 Nov 18, 2009
rick wrote:
My 07 gmc won"t start . I think it"s because of the security system. What do I do ?
Check your owners manual. There may be an alternate procedure for getting the vehicle started.
darrell kentucky--

Simpsonville, KY

#162 Nov 18, 2009
just had the problem repaired on a 2001 malibu. New passlock sensor. wish i had known about the 10 min. trick.

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