How to reset the PassLock system on a 2000 Silverado?

If the Passlock system identifies the key as unauthorized, the engine stalls. Leave the ignition switch in the “Run” position as the “Security” light blinks on and off for approximately 10 minutes. Turn the ignition switch clockwise to start the engine immediately after the “Security” light stops flashing.

What should I do if my Toyota Corolla security light goes off?

The ten-minute procedure involves trying to start the engine. If nothing happens or the engine starts and dies, the security light will be flashing. Wait ten minutes. The flashing light should go off or illuminate without flashing. When it does, turn the ignition off, wait twenty seconds, and then try to start the engine.

What should I do if my PassLock security light goes off?

If nothing happens or the engine starts and dies, the security light will be flashing. Wait ten minutes. The flashing light should go off or illuminate without flashing. When it does, turn the ignition off, wait twenty seconds, and then try to start the engine. If it starts and runs, everything is okay.

Is it normal for the security light to go off when the engine is running?

After the learn procedure is completed and the engine is running, the security light may stay on steady for a few minutes and then go off—this is normal. Depending on the system, replacement of key components will necessitate that a relearn procedure be completed.

How to reset the security system on a Chevy Silverado?

A Chevy Silverado that has had its Passlock security system enabled will shut down the fuel injectors on the vehicle and will not allow the vehicle to start. Resetting the system may be as simple as using the vehicle key.

How does the PassLock system on a 2000 Chevy Silverado work?

by David Clair. The 2000 Chevrolet Silverado is equipped with the General Motors Passlock theft-deterrent security system. The system disables fuel to the ignition if a valid key is not used when attempting to start the engine. If the Passlock system is activated, the Silverado will not be able to be started until the system is reset.

How to disarm an anti theft lock on a Chevy Silverado?

Chevrolet Silverado: How to Disarm Anti-Theft Lock. 1 Step 1 – Unplug the battery. Pop the hood of your truck to remove the battery. This should be as simple as removing the cables from your battery 2 Step 2 – Lock all doors. 3 Step 3 – Check for trouble codes. 4 Step 4 – Visit your local dealer.

Why does my Chevy Silverado security light keep flashing?

Again as I asked about any warning lights- if the security light were flashing, then that would be your problem. You could possibly have a bad crank position sensor. That would cause no spark and no fuel injector pulse. The security light always flashes, always has.

How do you test a Chevy Silverado security light?

Pull a plug wire off and stick a small screwdriver in it, then place the screwdriver about an inch from a metal object. While cranking engine you should see the spark jump. For the injectors, you need a test light. Unplug an injector and put the test light leads on the connector terminals. Crank engine and the light should flash.

What causes the alarm to go off on a Chevy Silverado?

If you use one of the power door lock switches in your vehicle with the door open, you will automatically trigger the alarm. The same is true when using your remote keyless entry transmitter.

How long does it take to turn off a GM security light?

Leave the key in the “ON” position for approximately 11 minutes. The security light will be steady on or flashing for the 11-minute period. Do not proceed to Step 2 until the security light turns off or stops flashing. 2. Turn the ignition switch to the “OFF” position for 30 seconds. 3.

What do you need to know about GM vehicle theft deterrent?

Connect a battery charger to the battery to ensure power is available while programming. Both the IPC/BCM and PCM must be working and communicating with each other. 1. Turn ignition on. 2. Attempt to start the engine, and then release the key to the “ON” position. 3. Observe the “SECURITY” indicator light.

How do I unlock my GM TheftLock radio?

Unlocking your Theftlock radio will require you to enter a unique 4-digit numerical code. Before you can do this, however, it will be necessary to write down two separate 3-digit numbers, which you’ll get by punching a series of buttons on the radio’s interface.

What happens to a GMC radio if battery dies?

Chevy and GMC vehicles both feature Theftlock radios which render the stereo inoperable to would-be thieves. The downside of the Theftlock system is that if your battery dies or becomes disconnected, you’ll need to enter the radio code to deactivate the Theftlock system.

Why is my Chevy TheftLock not turning on?

This security code keeps someone from using the radio in another vehicle if the unique security code is not entered. The radio display will read “LOC” and the device will not turn on. Whenever your Chevy battery is disconnected or the battery dies, the Delco Theftlock radio enters the “LOC” mode.

Can you bypass Passkey 3 on a GMC 1500?

CHEVY/GMC 1500,2500,3500 – YouTube PASSKEY 3/SECURITY SYSTEM BYPASS! No start issue? CHEVY/GMC 1500,2500,3500 If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

How much does it cost to replace a PassLock sensor?

Rinse, repeat, and cry. A more permanent solution is to either replace the ignition lock cylinder or bypass the sensor. Replacement cylinder with new sensors can cost, with labor, as much as $450. Bypassing the sensor will void any warranty, but since most of these vehicles are out-of-warranty at this point that might not be of any concern.

How do I Turn Off the PassLock sensor?

•The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK. The vehicle learns the Passlock Sensor Data Code and/or resistance on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

When did the Chevrolet PassLock system come out?

One of Chevrolet’s solutions for stopping thieves from driving away with a car is, coincidently, doing the same thing to the actual owner. Passlock is an immobilizer introduced by GM in many mid-to-late 1990’s vehicles.

How to fix a PassLock on a Silverado?

Go on ebay and type in vats bypass, there is a guy selling them for $20.00 free shipping. 3 wire hook up, black wire to ground, red wire to 12v on ignition, and white wire to dark blue 5v vats reference wire. I have had this on mine for over a year and works perfect, he offers life time replacement as well.

Can You disable the PassLock on a GM car?

The following instructions will allow you to disable the PassLock security in quite a few GM Vehicles. •This will allow you to install a remote starter and not have to purchase a bypass. •Avoid Costly repairs for an already broken PassLock System.

What is the oxygen sensor code for a Chevy?

P1137HO2S Bank 1 Sensor 2 Lean Or Low Voltage – Read Our Article On Oxygen Sensor CodesFor Help With This Chevy Trouble Code P1138HO2S Bank 1 Sensor 2 Rich Or High Voltage – Read Our Article On Oxygen Sensor CodesFor Help With This Chevy Check Engine Light Code

Where do I find the trouble code on my Chevy?

These are listed in numerical order for easy searching. When retrieving Chevy trouble codes with an OBD II scan tool, proceed as follows: 1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover. 2. Turn the ignition on. 3.

Which is the best diagnostic code for a Chevy check engine?

1 Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. 2 Manufacturer Specific Codes 3 P0342 4 P1031 5 P1032 6 P1105 7 P1106 8 P1107 9 P1108 10 P1109 11 P1111 12 P1112 13 P1113 14 P1114 15 P1115 16 P1116 17 P1117 18 P1118 19 P1119 20 P1120

How do I reset anti theft system Chevy Silverado?

Have a 2015 Chevy2500 duramax Noticed this morning not charging so Ipur 2 new batteries in it and know it won’t start In a chevy silverado, you will try to reset the anti-theft system by turning the key on until the yellow lock goes out on the instrument panel for about 10 minutes.

How long does it take to reset security light on Chevy Silverado?

At this point, if the vehicle starts, and the security light has not illuminated, a relearn is not necessary, and you’re done. If the vehicle starts and stalls, leave the key in the “Run” position and wait for the “Security” light to turn off. This will take approximately 10 minutes.

How to reset the PassLock system on GM cars?

Start the car immediately once the “Theft Sys” light stays on steadily. Remember to not turn the key off. Your car will now reset the passlock system and start as usual. If your passlock system keeps giving your problems, it may be broken and you will need to take it to the dealership.

When to relearn code on Chevy Silverado 1500?

After the third time, the new code will be relearned on the next start attempt when the ignition switch is rotated from the “Off” position. 5. From the “Off” position, start the vehicle, observing the security light. If the vehicle starts and runs normally, and the security light is off, the relearn is complete.

How do you reset the PassLock on a Chevy Tahoe?

When this happens, you will need to reset the Passlock system, so that you can again drive your car. Unlock the Tahoe driver’s door and insert the key into the car’s ignition. Turn the key to the “Run” position. This is the position where the ignition is on, but the engine is not.

Is there a way to bypass PassLock on a Chevy?

NewRockies.com has a solution for how to fully bypass the PassLock system in GM cars. This problem has popped up in the following Chevrolet generations. Most years within a generation share the same parts and manufacturing process. You can also expect them to share the same problems.

How to do a Relearn on a PassLock system?

To perform a relearn on a Passlock system, make sure there is a fully charged battery in the vehicle. The battery will be used for 30 minutes without the alternator available for charging. Connect a battery charger to the battery to ensure power is available while programming.

What’s the flashing security light on my GMC?

AllOffTopic.com FTW! It’s not security. Security issue would make it crank fine, fire up, and then stall immediately. I’d check the park interlock, that will prevent it from cranking in the first place. Check the park interlock as in it’s out of adjustment or what?

How to start a car with a flashing security light?

Attempt to start the car by turning the key to the Start/Run Position. 2.) Observer that the vehicle fails to start and that the security light is illuminated. 3.) Release key to the ‘ON/Accessory’ Position. (DO NOT turn key to the ‘OFF’ position).

What’s the name of the security system on a Chevy?

[1] Well, Passlock should be called the Great Immobilizer because not only does it stop thieves with no keys, it also stops owners with the right keys. GM introduced many security systems – VATS, Passkey, Passlock, but if your GM has a key without a chip in it, chances are it’s passlock.

When does the Toyota Corolla security light go off?

How do you turn off PassLock on a Chevy?

Key on, press volume till readout says SETTINGS then scroll to the Security to toggle off by pressing reset ( watch YOUTUBE). I personally see no sense of having no security system so try the RELEARN method. Other thing is that the Ignition Switch has a Sensor on it and the wire clip comes loose.

How long does it take for PassLock sensor to turn off?

•Observe the security light located in the instrument cluster, after approximately 10 minutes the security light will turn OFF. Turn OFF the ignition, and wait 5 seconds. •The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.

How do I Turn Off the PassLock security light?

1. Turn the key to ON and attempt to start the engine and release the key to the ON position. 2. The SECURITY light will illuminate. Wait 10 minutes until it turns off. 3. Turn the key to OFF for 10 seconds. 4. Turn the key to ON and attempt to start the engine. If it starts and run, the system has reset.

Is there a way to unlock a Chevy truck without keys?

You might think twice about parking it on the questionable sidestreet now. Instead of learning how to unlock a Chevy truck without keys, you can get a magnetic box and put a hide-a-key somewhere on the outside of your vehicle. Just be sure to wedge it in a spot where it won’t be easily found or fall off when driving.

How do you unlock the radio on a Chevy Silverado?

Jot down the four-digit number with which you will be provided twice. You can turn off the ignition while you make the call. You should once again see “LOC” on the radio screen. Using the hour and minute buttons on your radio control, enter the phone code to unlock your radio.

How to clear computer codes on a Chevy truck?

Some Chevy trucks, such as the diesel versions of the Chevy Suburban, have two batteries. You need only disconnect the negative terminal on one battery to clear the computer codes. Never let the negative battery clamp touch the positive battery terminal.

How do you unlock a Chevy radio code?

To unlock the code, you will need this card. Turn the ignition switch on and allow your electrical system to boot up the radio. Once the word “CODE” appears on display, you can complete the next step. Enter the anti-theft or unlock code that is on the anti-theft card.

How to reset PassLock reset system on Chevy?

How to relearn the PassLock sensor data code?

Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes; the vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK. 6.) Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password.

When does the crankshaft position sensor need to be relearn?

The PCM needs to learn the variability of the Crankshaft Position Sensor to better detect misfire conditions. Whenever the PCM is replaced, the Crankshaft Position Sensor Relearn procedure needs to be completed. The Crankshaft Position Sensor Relearn procedure requires the use of a scan tool that has this feature equipped.

How to turn on security light without starting engine?

Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “OFF” position.

When do I need to relearn the security key?

Start the If the vehicle starts and runs normally, the relearn is complete. If additional keys need to be relearned: Insert the next key to be Turn the key to the “ON” position within 10 seconds of removing the previously used key. Wait for security light to turn It should happen fairly quickly.

How to reset the PassLock system on a 2000 Silverado?