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GMC Forum: 2001 Gmc Yukon 2500 Xl Slt Leather. Radio Code?
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  #1  
Old 03-17-2010, 02:48 PM
shawn s shawn s is offline
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Default 2001 Gmc Yukon 2500 Xl Slt Leather. Radio Code?

How Can I Get A Radio Code For My Above Vehicle.?
Thx
Shawn
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Old 03-17-2010, 02:49 PM
Justin Justin is offline
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try the dealership
good luck you arent stealin cars are you
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Old 03-17-2010, 03:38 PM
Molson02536 Molson02536 is offline
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Quote:
Originally Posted by shawn s View Post
How Can I Get A Radio Code For My Above Vehicle.?
Thx
Shawn
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.


How to Reset GM Theft lock Radio's

Article Disclaimer: This article is meant to be used by Delco Radio owners to reset there radios. In no way is it meant to be used for any unethical or unlawful ways.

Purpose

The following instructions will allow you to reset any GM (General Motors), Cadillac, Oldsmobile, Buick, Pontiac theft lock radio.

Requirements

The theft lock radio must be in "LOC" mode.

Procedure:

1. Turn the ignition ON (The radio should display "LOC")

2. Hold down the Radio Presets 2 and 3 buttons for six seconds

3. The radio display changes from LOC to a three-digit number. Write this number down. You now have fifteen seconds to complete the next step.

4. Press the AM/FM button

5. The radio display changes to another three-digit number. Write this number to the right of the first one.

6. You now have a six-digit number, the first three digits are from STEP 03 and the last three digits are form STEP 05

7. Call 1-800-537-5140

8. Press 1 then # (pound). You'll hear "Invalid Code, try again"

9. Press 139010 or 106010 or 206010 or 202107 then # (pound). "it's really *<star>lol"
You will be asked to enter your four or six digit code followed by *

10. Enter the number from STEP 6 then *

11. Listen to the four-digit number and write it down. It will be repeated twice

12. Turn the ignition ON (The radio displays LOC)

13. Use the MN and HR buttons to enter the code from STEP 11

14. Press the AM/FM button. The radio display changes to "SEC". Your radio is now "un-locked" and usable.

Dealership Codes

* 139010
* 106010
* 206010
* 202107

Troubleshooting

If you fail to enter the correct code eight times, the radio goes into INOP mode. You have to wait an hour with the ignition on before the radio returns to LOC mode.
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Old 03-17-2010, 05:43 PM
DownSouth DownSouth is offline
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Molson you are just full of good how to's. I always thought this was something the dealer had to do.
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Old 11-10-2010, 01:04 PM
lastphaseofthis lastphaseofthis is offline
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that's a really helpful and money saving tip you there... but is there the same for a Nav unit? would it be the same but 2 diffrent buttons?(no 2 or 3 on navs)
Thanks in advance!

Last edited by lastphaseofthis; 11-10-2010 at 01:14 PM.
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Old 11-10-2010, 01:48 PM
Molson02536 Molson02536 is offline
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Quote:
Originally Posted by lastphaseofthis View Post
that's a really helpful and money saving tip you there... but is there the same for a Nav unit? would it be the same but 2 diffrent buttons?(no 2 or 3 on navs)
Thanks in advance!
You will have to have the radio programmed to your vehicle by a dealer or someone that has a TechII for the NAV system in your Yukon.
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Old 11-10-2010, 01:54 PM
lastphaseofthis lastphaseofthis is offline
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Quote:
Originally Posted by Molson02536 View Post
You will have to have the radio programmed to your vehicle by a dealer or someone that has a TechII for the NAV system in your Yukon.
Cool, buddy with a techII will be here in 4 or 5 days. Thanks for the confirmation that nav's can't be unlocked without a TechII. Good day to you sir.
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Old 11-10-2010, 02:10 PM
Molson02536 Molson02536 is offline
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Quote:
Originally Posted by lastphaseofthis View Post
Cool, buddy with a techII will be here in 4 or 5 days. Thanks for the confirmation that nav's can't be unlocked without a TechII. Good day to you sir.
What year is your Yukon and what year is the Vehicle the NAV is coming out of. Note there are other parts needed to install the NAV in a unit that does not have a NAV system. The Nav radio is a 2 DIN size, so just it won't work just on the size issue. Then there is the whole thing about the bus communication for the radio that wasn't on the '02 models and older. I won't say it is impossible, but it will be at least extremely difficult without major modifications.

From what I understand only the 2003 and up GM trucks have the new electrical system. This NAV unit communicates with the vehicle via the serial bus and will not even turn on if it does not receive a signal from the vehicle. In addition, this unit will have to be reset if it was previously installed in another vehicle because it stores the vin number and will only work in the vehicle that matches the vin stored.

Keep us posted and don't forget to order the GPS Antenna, the part number for the radio is 15204334 and the antenna is 15207447 .
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