Jump to content

1997 Delco Radio Theftlock


yukonGT

Recommended Posts

Posted

I have a 1997 Yukon GT, and purchased another Delco 09354155 radio, just like what came in my 1997. Half of the original radios night time illumination didn't work and thought the economical way was to buy a used one off ebay. How do I reset the theftcode on the new radio? How can I disable the theftcode on the old one before I remove it?

 

Thanks...John

Posted

Is it locked now?

 

The radio that is currently in the truck is NOT locked, I was told the radio that is on it's way is locked.

Posted

If it shows up locked the best thing to do is take it to you local dealer. They will unlock it for .5 to 1 hour labor. They will get a 6 digit number from the radio and call it in with the dealer ID to get the unlock code.

Posted

John: I did the exact same thing for my 98. When I installed the new stereo, the display just said LOC and I had no codes. I found this in the forums using the search function. It worked great for me. I don't know who the original author was.

 

Theftloc Bypass

 

1. Press and hold presets 2 & 3 for about 10 seconds until the first 3 digits of the display code are displayed

2. Write the numbers down.

3. Press the AM FM button, write down the next 3 numbers

4. Call 1-800-537-5140, when asked, enter 139010*, when asked enter the 4 or 6 digit code (obtained from Steps 1-3) from the radio and an *, for example using my code, 702712*, you will get an unlock code, write it down.

5. Go back to the car, press the HR button and set the first 2 numbers, then press minute button and set the next two last numbers, press AM FM button, SEC should be displayed, turn on radio

To remove customers code, repeat step 5. you should see --- on radio face, the code is now out of the radio.

 

Good Luck

 

Denis

Posted

wow...thanks!!!!

 

 

 

John:  I did the exact same thing for my 98.  When I installed the new stereo, the display just said LOC and I had no codes.  I found this in the forums using the search function.  It worked great for me.  I don't know who the original author was.

 

Theftloc Bypass

 

1. Press and hold presets 2 & 3 for about 10 seconds until the first 3 digits of the display code are displayed

2. Write the numbers down.

3. Press the AM FM button, write down the next 3 numbers

4. Call 1-800-537-5140, when asked, enter 139010*, when asked enter the 4 or 6 digit code (obtained from Steps 1-3) from the radio and an *, for example using my code, 702712*, you will get an unlock code, write it down.

5. Go back to the car, press the HR button and set the first 2 numbers, then press minute button and set the next two last numbers, press AM FM button, SEC should be displayed, turn on radio

To remove customers code, repeat step 5. you should see --- on radio face, the code is now out of the radio.

 

Good Luck

 

Denis

 

 

 

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined
  • Who's Online   4 Members, 0 Anonymous, 255 Guests (See full list)

  • Latest Articles

  • Posts

    • Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.
    • This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • 2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...