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Help: "Service Theft Deterrent System" light is on.

CbrownGT
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Ozer Enthusiast

Ozer

Posted
Posted
12 hours ago, Kummie said:

Went to the dealer today and ordered the NEG cable - $210.00!!!!

Jeez! Anything special about it? Couldnt remove and just replace it with a NEG cable from AutoZone? 

NCPGMC Enthusiast

NCPGMC

Posted
Posted

To the original question about "Service Theft Deterrent System"

From the manual, here is a start...

image.thumb.png.28cde37c1c965ce9f2dd3405c1a59ec2.png

image.thumb.png.86d2b2436229c3513598bc77b83c2e8d.png

  • 2 months later...
Hurrikane101 New Member

Hurrikane101

Posted
Posted

I have a 2015 Silverado and this just happened to me tonight. Got in to start it and wouldn’t start and a message came up service theft deterrent system. I was able to use the remote start and it started. From what I am reading it seems like a lot of vehicles are having the same problem. Has anyone figured this out? Is there some sort of reset that can be done?

  • 1 month later...
  • 10 months later...
Rwcoke New Member

Rwcoke

Posted
Posted

I have the same problem on 2014 Sierra.  Last year dealership, replaced ground cable.  Issue started again 2 weeks ago.  No consistency on what initiates the error.  Sometimes the auto start does it, turning key ignition does it and sometimes battery appears dead.  

Rwcoke New Member

Rwcoke

Posted
Posted

I replaced the fuse panel on the top of the battery.  Appears to fix problem but I will see.  All connections were tight but if I moved the panel slightly power would return.  If this doesn't fix it, i will have the positive wire harness replaced.

  • 6 months later...
Vpad89 New Member

Vpad89

Posted
Posted (edited)

I might have found a solution to this issue. Alternator going bad. I have a 2015 Sierra SLT 6.2L and I was experiencing at random times intermittent power loss when I would attempt to initially crank. Seemed like the batt was dead, I would then attempt a second crank and would start up just fine with a “theft deterrent fault” displaying on digital screen with a caution light. Radio would even reset. I’d then turn off and crank a third time and everything would be fine, no lights or faults on dash. I took vehicle to autozone so they can check the battery and alternator and of course their little pack said everything was fine but I still believed either or was the issue because I would also at random times experience hyper flash while using turn signals with all bulbs and lights illuminating fine. I suspected it to be an issue with the power supply system. So it eventually got to the point where I would get the theft deterrent fault more frequent on top of a “roll window” fault and my alarm system going off for no reason after unlocking car and opening door. Turn signals were hyper flashing just about at every use at this point so I knew whatever the problem is was about to hit its worst point. I then decided to check the battery voltage using a voltmeter with vehicle on and noticed that the voltage was only reading about 12v with a/c max and headlights and fogs on. To me 12v seemed a little low, my interpretation is that it should be +13.5v with vehicle on and alternator charging battery. Even tho autozone said battery and alternator was fine I decided to replace the alternator anyway because I replaced the battery a year earlier. After doing so, I checked voltage again. This time the battery was reading +14.5v with max a/c and headlights plus fogs on. No more hyper flash or issues yet. Been a few days since. Never received a battery light during this dilemma so I can see why no one has figured out a possible issue with alternator. Autozone was no help, lol.

Edited by Vpad89
  • Like 1
Ravenkeeper Senior Enthusiast

Ravenkeeper

Posted
Posted
On 11/6/2019 at 11:30 AM, NCPGMC said:

To the original question about "Service Theft Deterrent System"

From the manual, here is a start...

image.thumb.png.28cde37c1c965ce9f2dd3405c1a59ec2.png

image.thumb.png.86d2b2436229c3513598bc77b83c2e8d.png

On 11/7/2019 at 6:05 PM, Kummie said:

That's a great illustration, however, I don't have that on my 2015 Silverado 2500 HD on the upper console - darn it!!!

My 15 didn't have that switch either, but it only seemed to happen on HOT days.  Hasn't happened with my 18, yet.  I think, since it was "highlighted," that he was referring to the "Immobilizer." 

 

  • Like 1
  • 8 months later...
MN14 New Member

MN14

Posted
Posted

Last year, my power steering shut off while I was driving, 4 times in one day. A stabiltrack warning came on my dash.

I checked all fluid levels and all seemed fine.

Then for several months, no issues.

All of a sudden, it started happening again.

Now today, I could not start my 2016 Colorado. 

The anti theft light is now on. I was able to jump it to get moving again.

I shut it down and let it sit for about 10 mind and it started up and the light was gone.

Chevy dealerships have not been able to help.

Any suggestions?

 

Menjivar2 New Member

Menjivar2

Posted
Posted
On 4/18/2022 at 12:33 PM, MN14 said:

Last year, my power steering shut off while I was driving, 4 times in one day. A stabiltrack warning came on my dash.

I checked all fluid levels and all seemed fine.

Then for several months, no issues.

All of a sudden, it started happening again.

Now today, I could not start my 2016 Colorado. 

The anti theft light is now on. I was able to jump it to get moving again.

I shut it down and let it sit for about 10 mind and it started up and the light was gone.

Chevy dealerships have not been able to help.

Any suggestions?

 

We are having this issue with a 2015 Tahoe. It will not crank on. It just clicks. And the theft deterrent light is on. We can’t get it to start now. 

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