Question about 2000 Pontiac Montana

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DELPHI THEFTLOCK RADIO SHOWS LOCKED WONT SHOW RETRIVAL CODES

SHOWS LOCKED AND CLOCK CAN UNPLUG AND PLUG BACK UP WORKS FOR SECOND THEN SHOWS LOCKED AND CLOCK THEFTLOCK LIGHT ON STEADY

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The phone number no longer works, but DelcoLockCodes.com will get you your code for $14.99

Posted on Nov 11, 2019

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Dont buy a stolen raido or use code

Posted on Jan 02, 2016

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Posted on Jan 02, 2017

Molson02536

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SOURCE: radio locked on my 98 grand prix need unlock code

If your lucky the dealer may still have it or the code may be written down at the back pages of your manual. The other place where you can get the code would be www.radio-code.com. before you try any of that, try 0000 to unlock your radio. Good luck and hope this helps. 

Posted on Jun 19, 2009

steve noel

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SOURCE: need theftlock code

if you have the owners manual it should be listed in it.

Posted on Oct 09, 2009

Anonymous

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SOURCE: i have a 02 pontiac grand am and the radio is

HAVE YOU OWNED THE CAR SINCE IT WAS NEW? THE POWER HAS BEEN INTERRUPTED FROM THE STEREO. IT WILL TAKE A LOCK CODE TO UNLOCK IT. REFER TO YOUR OWNERS MANUL OR TAKE IT TO THE LOCAL GM DEALERSHIP.

Posted on Feb 17, 2010

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1 Answer

Console warning lights lit, radio display theftlock, doors lock and unlock, key fob not working


Sounds like one of your body control modules has decided to die. It could be corrosion at the plug or in the BCM. Or the BCM itself. Takes a scanner and diagnostic time to figure out.

Dec 28, 2015 | 2004 Cadillac SRX

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How do I reset the lock on my factory stereo for a 2005 Chevy impala.?


This is a long explanation, but a link to do it is provided below. First disconnect battery put it back. Turn on car, press an hold 1an 2 buttons for about 10 seconds or so, 3 digits will appear, write them down, press am/fm button, 3 more digits appear, write them down. Now with those numbers call the GM automated line number. 800-537-5140. You will be asked which brand you own. Chevy I think is 1pontiac is 2 or something like this. Get it right or it will not work. After you enter the brand number press # key. Then enter you numbers you wrote down followed by the # key. You will be given a 4 digit number write it down. Go to car press the clock hours button an enter the first 2 numbers as hours, then press minutes button an enter last 2 difits as minutes. Then press AM/FM on radio, it should read SEC for sucess. Then turn on car radio simple but you mus do it right. Dont worry about phone number it is just an automated line an cost nothing.
How to Unlock Your Locked GM Theftlock Radio

Jan 29, 2015 | Cars & Trucks

1 Answer

Whirlpool interior light won't shut off


That is a really good question....what category did you post it under?

May 28, 2012 | Cars & Trucks

1 Answer

Replaced stock bcm with used. Was reprogramming with the method of turning key to start position (vehicle won't start) then leaving it in the on postition for approx 10 minutes until the theft lock...


A used body control can be used in a vehicle other than the vehicle it was installed in. the body control module when first installed is programmed with the vehicle vin number. the vin number can not be changed was it was written to the BCM. the oprions can be always change in the BCM but not the VIN number. basically the used bcm you have installed has the vin number from the vehicle was installed in, now the vin number in the used BCM doesnt match all the other control modules

Jun 07, 2011 | Chevrolet Equinox Cars & Trucks

2 Answers

I have a pontiac 2004 van i need to unlock the radio


Your '04 is too new to unlock on your own.

There are 2 types of GM Theftlock, Theftlock I and Theftlock II. The Theftlock I is found in pre 2000 vehicles, and Theftlock II is in the later models.


Theftlock I - Uses a volatile user settable code that is input through the key pad on the front of the Radio. If the power is lost (dead battery etc.) the code is gone and must be re-entered for the radio to work. But with the correct procedure the owner can unlock it.

Theftlock II - Uses an EPROM (erasable/programmable read only memory) or a PROM (the difference is you can not alter the prom once it is programmed).

In either case the code is burned in and holds even when the power is lost. With Theftlock II the radio is married to the vehicle by way of the VIN. When the vehicle is started the computer compares the number in the radio with the VIN in the body control module. If they match, the radio works, if not the radio displays LOC and you are finished, there is no easy way around it. The radio will not work until you make a trip to the dealer.


The dealer will use a TECH 2 scanner to change the VIN stored in the radio. The radio does not need to be removed (for the serial number or any other nonsense). The technician just plugs into the computer and resets the VIN in the radio.

Thank you for using fixya, you can try removing the fuse to your radio for 5 min and reconnect it. This will reset the radio back to default and re-read the Vin number to the PCM to match with the radio. At most time this will get your radio working again and all you have to do is to re program the pre-set and clock.

Aug 06, 2010 | 2004 Pontiac Montana

1 Answer

Unlock radio need code to lock radio [email protected]


Your '02 is too new to unlock on your own.

There are 2 types of GM Theftlock, Theftlock I and Theftlock II. The Theftlock I is found in pre 2000 vehicles, and Theftlock II is in the later models.


Theftlock I - Uses a volatile user settable code that is input through the key pad on the front of the Radio. If the power is lost (dead battery etc.) the code is gone and must be re-entered for the radio to work. But with the correct procedure the owner can unlock it.

Theftlock II - Uses an EPROM (erasable/programmable read only memory) or a PROM (the difference is you can not alter the prom once it is programmed).

In either case the code is burned in and holds even when the power is lost. With Theftlock II the radio is married to the vehicle by way of the VIN. When the vehicle is started the computer compares the number in the radio with the VIN in the body control module. If they match, the radio works, if not the radio displays LOC and you are finished, there is no easy way around it. The radio will not work until you make a trip to the dealer.


The dealer will use a TECH 2 scanner to change the VIN stored in the radio. The radio does not need to be removed (for the serial number or any other nonsense). The technician just plugs into the computer and resets the VIN in the radio.

Thank you for using Fixya and you may want to try pulling the fuse to your radio for 2 min and then reinstalling it. This may reset your radio and have the ECM recognize the radio matching VIN number to the Trailbalzer.

Jul 15, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

I NEED TO UNLOCK MY STERO IN A 2004 TAHOE


There is no actual "security code" in the radio as in past model years. The newer theft deterrent system utilizes the class 2 serial data to determine if the radio is in the appropriate vehicle...in other words it compares the VIN it has stored in it's memory with the VIN of the other modules (body control and PCM) in the vehicle to "check" to see that it's in the correct vehicle.

Each time the radio receives the "run" power mode message, it compares the VIN information it has stored to the VIN information received from a module on the class 2 serial data circuit responsible for transmitting that information. If a mis-match occurs, the radio display will indicate to the user the radio is locked. Once this takes place the radio will not respond to any buttons/commands and becomes inoperative. But the dealer can reestablish the radio into a different vehicle with a scanner.

There are 2 types of GM Theftlock, Theftlock I and Theftlock II. The Theftlock I is found in pre 2000 vehicles, and Theftlock II is in the later models.


Theftlock I - Uses a volatile user settable code that is input through the key pad on the front of the Radio. If the power is lost (dead battery etc.) the code is gone and must be re-entered for the radio to work. But with the correct procedure the owner can unlock it.

Theftlock II - Uses an EPROM (erasable/programmable read only memory) or a PROM (the difference is you can not alter the prom once it is programmed).

In either case the code is burned in and holds even when the power is lost. With Theftlock II the radio is married to the vehicle by way of the VIN. When the vehicle is started the computer compares the number in the radio with the VIN in the body control module. If they match, the radio works, if not the radio displays LOC and you are finished, there is no easy way around it. The radio will not work until you make a trip to the dealer.

The dealer will use a TECH 2 scanner to change the VIN stored in the radio. The radio does not need to be removed (for the serial number or any other nonsense). The technician just plugs into the computer and resets the VIN in the radio.

Thank you for using fixya and good luck. you might get luck by removing the fuse toy our radio for 5 min and reinstalling it, this will reset the radio to default and all you need to do is reset the clock and radio presets.

Jun 15, 2010 | 2004 Chevrolet Tahoe

3 Answers

NEED TO KNOW HOW TO CHANGE OUT IGNITION SWITCH ON 1997 PONTIAC FIREBIRD. PURCHASED SWITCH FROM PONTIAC DEALERSHIP WITH NEW KEY. HOW EASY IS IT?


Caution:On models with a Delco Loc 2 or Theftlock audio system be sure the lockout feature is turned off before proceeding

  • Disable the airbag system
  • Remove the tilt lever if equipped
  • Remove the upper and lower steering column covers
Ignition Switch

  • Remove the ignition switch retaining screws
  • Detach the ignition switch from the steering column housing assembly and unplug the electrical connectors
Key Lock Cylinder

  • Turn the key to the run postion
  • Depress the lock button and remove the key lock cylinder

Sep 22, 2009 | 1979 Pontiac Firebird

2 Answers

2003 malibu will turn over but wont start.instrument cluster inop


Is the theftlock light lit up on the dash? It it is you may have a problem with the GM manufacturer theftlock device. The Theftlock system prevents the vehicle from being started without its own key and shuts of the fuel injectors which is typically why it turns over but won't start. It's quite problematic on mine and locks the car so you have to replace the cylinder.

If the "Theft System" light is flashing on in the dash sit in the car with the key in the "On" position. When the light stops flashing it will light solid for a second then go out. Open and close the driver side door, turn the car off, turn and start the car. This resets the theft lock and I kid you not it works.

Aug 29, 2009 | 2002 Chevrolet Malibu

1 Answer

2001 Explorer; anti theft light steady; no power to car


take the positive side of the battery off for about 3 seconds and then put it back on to see if this will reset the security code

Apr 26, 2009 | 1994 Ford Explorer Limited

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