Question about 1999 Chevrolet Silverado 1500

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I'm trying to bypass security code 99 Silverado already tried the ten min thing help please

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Youtube this, it will have videos to show you how.

Posted on Oct 30, 2019


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What is the CODE for.? The radio anti theft code.? I know that with my old Honda Accord the dealer had the code archived in their system. I changed my battery and had to have the code to put in the radio.. I called the car dealership that sold me the car. All I had to do was give them my information and they looked up the code ID..
I would imagine that GM automobiles work the same way. I hope this helps you..

Posted on Jun 14, 2019


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Posted on Jan 02, 2017



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SOURCE: 99 olds aurora pass key problem

There is most likely a problem with the tiny sensor in the ignition lock cylinder, it is not reading the key chip and locks u out, the problem is u can't just replace the lock cylinder u need a dealer only re-programm of the pass key system since the control module will not recognize the new lock code, catch 22 if u ask me. Do u have more than one key for the car? do both do this?

Posted on Jan 16, 2009


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SOURCE: Security light on and won't start? " HELP!"

you sure can bypass the security! i just had to do it on my 97 achieva and was amazed how simple it was!here are the steps to take:
1- if it has tilt steering, unscrew the handle for the tilt and remove from column.
2-remove the cover from the steering column.
3- on the passenger side of the column at the key switch you will see 3 small 20 gauge wires going from the ignition and up over the steering column..
4- the wires are yellow, white and black. start the car and let run for a few seconds and while car is still running cut the yellow wire. turn the car off and try to start. will start every time! i done mine 6 mo. ago and never fails to start. i got this info from a top certified mechanic who's been in business 35 years. dont take it to GM because they will try to give you the run around and tell you it will cost 400 to 500 dollars to fix and some of them will even try to tell you it cant be disabled! lol the only drawback is that the security light will be on and maybe blink like mine does but when i think about 400 or 500 dollars, i dont even see that light! lol trust me. it works! have a good day and good luck!


Posted on Mar 20, 2009


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SOURCE: 99 dodge Durango security bypass key fob broke

Try unlocking the the door with the key and then lock and then unlock again the may disable the security system

Posted on Jan 31, 2010


Joe Taylor

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SOURCE: i have a 99 chevy

For a quick and easy permanent fix that will eliminate every aspect of the passlock system, go to this link

Posted on Aug 04, 2011


Dave C

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SOURCE: 1997 chevy silverado. 350 engine...vortec.

This code means that the catalytic converter on the passenger side of the truck is not working as well as it should. You probably need to have a new cat put in but be aware that if the engine is running poorly, this code can set because the cat gets overloaded. Often times people replace the cat because of this code, only to have the problem return because they did not fix the root cause of the cat failing. A tune-up will not necessarily solve the problem either. If the engine has a lot of internal wear and is burning oil, the new cat will fail prematurely because of too much fuel and oil coming out of the engine, through the exhaust system.

Posted on Sep 11, 2011

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1 Answer

Bypass security for 1999Yukon ,I put a new egnitiontumbler and security don't let truck run shuts off qwik can I bypass this?

Try touching the positive and the negative battery cables together and then hooking them back on battery then this is important 1-- unlock with key (if not locked lock it then unlock all doors with key leave doors open and put key in try to start leave in the on position for ten mins until light stops blinking then try starting it again if it don't start then leave key in on position wait ten more mins and start truck as always hope this helps good luck

Feb 16, 2015 | Cars & Trucks

1 Answer

How do you do a sucurity bypass on trucks do have to leave in the on position for about ten min something

No. What you may be confusing is the Diagnostic Code reset procedure. This reset has nothing to do with the Security system. Leaving the power disconnected for 10 minutes will clear trouble codes but will not fix Security.

Jan 08, 2014 | 2006 Ford F-150

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How to fix the security light cause it wont let me start my car it is a GMC Jimmy 4x4, 4.3

try locking all the doors with the key .if that wont work.turn the ignition multible times on off ect.if that wont work disconect the battery.reconect and try it .the alarm is cuting youre fuel off good luck hope this helps you

Mar 29, 2013 | Buick Cars & Trucks

1 Answer

I have a 2001 chevy malibu. It will not crank nor turn over. Its not the battery I just replaced it. The theft light does not stay on (it goes off when all the other light go off). I have tried turning the...

I think i know the issue. I have had it happen to me it is your security system failing. Your car is on the list year make and model... I found a module that you can install yourself and it will bypass it allowing your car to start everytime.. Check it out and ask questions they are very helpful. Also for some reason if it does not work they will refund you %100 of your money.. this literally saved my car. Hope it helps Do It Yourself GM Security bypass

May 09, 2017 | 2001 Chevrolet Malibu

1 Answer

What will disable starter on 99 olds intrigue how to repair going crazy

Battery cables together ??
If the security light is on, the system has disabled the starter and the fuel injectors.
The problem would be a faulty chip in the key, the sensor in the lock cylinder, or the VATS module.
If the security light is not on, it could be the neutral safety switch.

Oct 08, 2012 | 1999 Oldsmobile Intrigue

1 Answer

When you try to start my 99 Alero the security light starts blinking and it will not start. The light blinks for about ten to twelve minutes before going off.

The Problem is your VATS security system. I just fixed this in my 96 regal 3 days ago. You can go the cheap way, and bypass the key. (link #1) or spend 200 bucks and rip that whole garbage system out of your car. (link 2) I bypassed my key, worked for about a year till the computer part started failing. then i just did a full rip out.

Jan 10, 2011 | Oldsmobile Alero Cars & Trucks

1 Answer

How do I bypass security, since truck has been off for months. It has a new battery but it still does not turn on?

there is no way to bypass the factory theft system. try leaving key on for ten minutes to relearn and see if it starts

Oct 07, 2010 | 2003 Chevrolet Silverado 1500

2 Answers

I have a 1999 chev silverado 5.3L. Engine will

What is the fuel presure? on a vortech engine the presure needs to maintain 60-66 pounds. It is possible that the fuel filter is restricting the flow of gas or could also be a weak pump... just a another thing to check... hope it helps.

Jan 20, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

Where is the ignition timing bypass connector on a 1994 Chev. Silverado CK2500? After putting in a new distributor, now trying to set the timing. Need to find the bypass connector in order to override...

I think 94 is still OBD1 computer system. Have you ever run codes on it? If so the diagnostics terminal will over ride the computer when running so you can set timing. Just get a .99 cent code key from Autozone or use a paperclip.

Jul 27, 2009 | 1994 Chevrolet C2500

1 Answer

Was wondering how to disable passlock on my 99 chevy silverado?

Go to on the left there is info on bypass security systems it tells you to go to a web site and purchase a bypass module

Mar 03, 2009 | 1999 Chevrolet Silverado 1500

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