Gmc sierra theft deterrent system reset

Ok so i got a new ECM tuned up from MMLMM and now the truck wont start. Its giving me the theft deterrent system indicator on the dash. I need help. i have heard about doing the VATS reset of turn the key on and leave it for 10min then off and do this three times. Tried this once so far and nothing.

Dec 16, 2021 · The problem is the service theft deterrent system message and idiot light are now stuck on. Truck Runs Fine, just light and message will not clear. This is how it happened..... It seems key code generators and even hacking OnStar is common now, so the OEM security/immobilizer system doesn't seem to be much of a deterrent to an experienced thief. ... to install and remove, but it would just be for at night, so not an issue there. Also, it is a very conspicuous theft-deterrent device, but I'm not sure if that is a …Nov 10, 2021 ... Apparently, it was an issue with the passive anti theft system and it wasn't allowing it to start. ... Anti Theft Car System Reset PROBLEM SOLVED.Deterrent gm. Service theft deterrent system gmc acadiaService theft deterrent system gm cadillac chevy gmc Ecm gmc silverado chevy 4l harness 3l e37 0l 2l 9l vats theft2014 chevy malibu theft deterrent system reset. Cadillac xts service theft deterrent system: causes + reset procedure . Check Details Check DetailsI have a 2008 Chevy 3500 Duramax. Went to start this morning (around 30 degrees F), and turned the key to ignition and it did absolutely nothing and the service theft deterrent system light came on. I read on forums to turn the key to the on position, let it sit for ten minutes and then wait for the security light to go off, turn the key off ...

Nov 18, 2022 ... GMC Key Program and Theft Pass Lock Key Programming. The GMC ... 2011 GMC Sierra 30-Minute Vehicle Key Relearn ... Anti Theft Car System Reset ...Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Pontiac Grand Prix. Depending on the model year, your car's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Grand Prix theft deterrent system message, the …Gmc service side detection system 2022 gmc sierra 3500 hd remote control door lock and theft deterrent Service theft deterrent system chevy. How to reset anti theft system chevy silverado [done] Holden colorado service98 99 gm truck & suv anti theft passlock module evo sensor #16264955 Side detection system temporarily …The Service Theft Deterrent System is an alert message that a GMC Acadia owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Acadia.30 Minute Learn Procedure. 1) Turn ON the ignition, with the engine OFF. 2) Attempt to start the engine, then release the key to ON, vehicle will not start. 3) Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF. 4) Turn OFF the ignition, and wait 5 seconds .

2014 chevy cruze backup camera not working 2015 gmc sierra theft deterrent system reset 2009 chevy malibu anti theft reset. 2014 chevy cruze theft deterrent system. Chevrolet malibu questionsChevy malibu won't start theft system 2014 chevy malibu theft deterrent system reset1998 chevy silverado ignition switch.1) Unhook battery for 30 minutes. 2) Touch positive and negitive cables together to reset system for 60 seconds. 3) Re-learn keys. Have car on run for 10 minutes, turn to off, back to run, back to off. Do this three times total. Then learn the …2012. To reset the anti-theft security alarm on Your 2012 GMC Terrain You need to lock all the doors, then unlock the driver side and put the key into the on position. Now turn it off and then back on twice and it will reset.Current automobiles use a theft-deterrent alarm system to prevent break-ins. The horn will sound while the headlights ...ABOUT ADVANCED THEFT DETERRENT FEATURES. If equipped, this system can help deter the theft of your gas, wheels or vehicle as well as help protect against window break-ins.If you’re in the market for a new full-size pickup truck, the 2022 GMC Sierra 1500 is likely an option you’ll come across during your search. And it’s certainly a truck model you s...I have a 2008 Chevy 3500 Duramax. Went to start this morning (around 30 degrees F), and turned the key to ignition and it did absolutely nothing and the service theft deterrent system light came on. I read on forums to turn the key to the on position, let it sit for ten minutes and then wait for the security light to go off, turn the key off ...

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Method 1: Check Your Key or Key Fob. Start by visually inspecting your key or fob for any apparent physical damage. If it is cracked, chipped, or visibly damaged, this might be the root of your problem. If you identify physical damage, you’ll need to get a replacement from a dealership.2016 gmc sierra 1500Theft deterrent gmc Gmc 2l v8 denaliChevy silverado theft deterrent system reset. 2019 chevrolet silverado offers a trailer theft alert systemPontiac firebird service theft deterrent system: causes + reset Theft deterrent system chevy impalaFor 2015-2018 gmc sierra 3500 hd anti-theft control module ac …The Service Theft Deterrent System is an alert message that a Chevy Cobalt owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Cobalt.Chevrolet. Silverado 1500. 2014. To reset the anti-theft system in the 2014 Chevy Silverado, turn the key in the ignition to the "on" position and attempt to fire the engine. Return to the "on" position. The vehicle will not start if anti-theft has disabled the ignition. After 10 minutes, the flashing "security" warning light should power off.Jul 24, 2012 · Lost or broken keys must be replaced with a key of the same resistive value. Get a key made at the dealer or a qualified locksmith. This system does not need to be reset if the PCM is replaced. Passkey II. This system also has a Theft Deterrent Module (TDM) but it’s programmed in to the body control module (BCM).

The Service Theft Deterrent System is an alert message that a GMC Yukon owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Yukon.Step 1: Find the vehicle’s identification code. The first step to unlocking your GM radio is to find the vehicle’s identification code. This can be found in the owner’s manual or on a label inside the glove compartment. Once you have located the code, write it down and keep it in a safe place.Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Silverado. Depending on the model year, your truck's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Silverado theft deterrent system message, the …Here’s how. To reset your 2013 Chevy Malibu anti-theft system, insert and turn the key in the ignition to turn on the car’s electrical systems without starting the engine. Wait for around 10 minutes, then switch the ignition off, remove the key, and let the car sit for a few minutes before restarting the vehicle.Gm tailgate security system, theft deterrent 2007-12 silverado sierraGmc theft deterrent system reset: 4 causes & best solutions 2022 gmc sierra 3500 hd remote control door lock and theft deterrentTheft deterrent.Here’s what to do: With a fully charged battery, put the key in your G6’s ignition and turn it like you are going to start the engine. Leave the key in the on position. You’ll see the little padlock symbol, security light, or service theft deterrent system message. Once the padlock goes out (takes about ten minutes), try and start your G6.Aug 22, 2023 · GMC Theft Deterrent System Reset – How To Do It? The process is not difficult, and almost everybody can do it. First, you need to unlock the doors, turn on the ignition, press lock the doors again (with the doors open) and wait for the security light to appear again. Yukon Playlist https://www.youtube.com/playlist?list=PLIjr-uSYDZi7J7EQ1ErTn1Yzi6ET_3SsrIf your GM won’t operate/start after the alarm has gone off, here is o...Buying a used GMC Sierra 1500 can be a great way to get the most value out of your purchase. The Sierra 1500 is a reliable and powerful truck that offers plenty of features and cap...Here are two methods to reset the anti-theft system on 2007 Chevy Malibu: 1st method 1. Put the ignition in on position, let it breathe for 10 minutes, and remove it when the anti-theft system light stops blinking. 2. Crank up the engine; it should now start 2nd method • While outside the car, press and hold the lock and unlock button togetherJan 14, 2022 · 2008 lmm no start anti theft deterrent light on. So I have a 2008 gmc seirra 2500 lmm. Problem started out as a no start, no crank. After 4 days of looking for broken wires and cleaning up grounds, I finally found a bad ground wire. I replaced the ground wire , in process I also put in new batteries, as mine were getting bad. Step 1: Check for the anti-theft light. It’s located on your dash and will have a blue or red light. Step 2: Turn the ignition to the "on" position. Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Leave the key in position for about 10 – 15 minutes.

The Service Theft Deterrent System is an alert message that a Cadillac Escalade owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Cadillac Escalade ...

If you’re in the market for a new pickup truck, you may be considering the 2020 GMC Sierra 1500. The 2020 Sierra 1500 comes with some noteworthy improvements over the previous year...The 2015 GMC Sierra 2500HD pickup truck has a maximum towing capacity of 17,900 pounds when using a fifth-wheel hitch and trailer. The truck can tow up to 14,500 pounds using a con...Delco gmc partsgeek Theft silverado Service theft deterrent system. GMC Sierra 1500 Questions - Truck over revving in 1st shifts hard into ... Gm vehicle anti-theft system password relearn – auto repair technician homePasslock bypass reset 2003 silverado cargurus gm gmc sierra helpful found 1500 people chevrolet issues Theft anti …The theft deterrent system on Chevy and GM vehicles (like the Impala or Cruze) uses external and internal car sensors to detect burglary attempts. When the system detects an attempt to steal the car, it immobilizes the engine and raises a high-pitched beeping alarm to notify you of the intrusion.Conclusion. You can easily clear the theft attempted message from the dash by pressing the unlock button or turning the ignition on. We described both those methods. So, follow those steps and turn off the anti-theft mode. If you fail to disable the anti-theft system using those methods, we recommend you get your car to a mechanic.1. Put the key into the keyway and turn it to the ON (RUN) position. A "Security" indicator light on the dashboard will stay on for 10 minutes. 2. Within 1 minute after the indicator light goes off, turn the ignition to "OFF" then return to the ON (RUN) position. The indicator light again will stay on for 10 minutes.Yukon Playlist https://www.youtube.com/playlist?list=PLIjr-uSYDZi7J7EQ1ErTn1Yzi6ET_3SsrIf your GM won’t operate/start after the alarm has gone off, here is o...

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They can send out a tow truck for you. There used to be a 30 minet relearn proceedure that may have help the truck to start, GM has stop this feature in 2007 and newer trucks. VIN : 1GTHK23638F175733. VEHICLE INFORMATION. Merchandising Model : TK20743 -2008 SIERRA 2500HD 4WD CREW CAB SLE2. Warranty Start Date :About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The Service Theft Deterrent System is an alert message that a Chevy Avalanche owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Avalanche.Feb 24, 2020 · Remove the nut off the negative battery cable with a socket set or wrench. Slide the cable off of the battery and put it aside. Turn the headlight switch to the “on” position to drain the ecm of any remaining power. Wait at least 10 minutes, then turn it back to the “off” position. Deter vehicle theft This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors . 2007-2015 GM part # 22738087 - Theft Deterrent Module. Links ... GMC : Sierra 2500 HD: Denali, SLE, SLT, WT: 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel: 2014 : GMC : Sierra 3500 HD:Vehicle Security Inclination Sensor System (with RPO Code UK3- AP3- AP8- AU0- SRW- without RPO Code G69- Y91). Designed as a theft deterrent- the inclination sensor helps deter unauthorized jacking or towing. It works by detecting a change in the parked angle of the vehicle. If a change is detected- an alarm (horn) will sound and lights will flash. Help …Chevrolet. Silverado 1500. 2014. To reset the anti-theft system in the 2014 Chevy Silverado, turn the key in the ignition to the "on" position and attempt to fire the engine. Return to the "on" position. The vehicle will not start if anti-theft has disabled the ignition. After 10 minutes, the flashing "security" warning light should power off. 2012. To reset the anti-theft security alarm on Your 2012 GMC Terrain You need to lock all the doors, then unlock the driver side and put the key into the on position. Now turn it off and then back on twice and it will reset.Current automobiles use a theft-deterrent alarm system to prevent break-ins. The horn will sound while the headlights ... The Service Theft Deterrent System is an alert message that a Chevy Equinox owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Equinox.2014 silverado anti-theft issue. Hi, i have a 2014 silverado duble cab LT 4x4 with the 5.3v8, it only has 6000 miles, i've been having this issue with the anti-theft system activating by it`s own, i wanted to get more info before going to the dealer. First, a couple of times when i got in the truck in the morning, the radio was blank, the clock ...Mar 14, 2023 · Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Savana. Depending on the model year, your van's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Savana theft deterrent system message, the system will not let 6. Turn the ignition switch to the "OFF" position for 30 seconds for a third time. 7. Turn the ignition switch to the "ON" position for 30 seconds. 8. Turn the ignition switch to the "OFF" position. 9. Attempt to start the engine. If the engine starts and runs, the relearn is complete. ….

Aug 22, 2023 · GMC Theft Deterrent System Reset – How To Do It? The process is not difficult, and almost everybody can do it. First, you need to unlock the doors, turn on the ignition, press lock the doors again (with the doors open) and wait for the security light to appear again. theft of GM trucks are getting crazy throughout Texas and the southern United States. any thoughts on revelco, kill switch, or Croc. Loc. the revelco seems solid but the price is a lot. The thieves could still easily swap the ECM/ key out in a few minutes and drive away with revelco. The Croc Loc is what a lot of local Guys are getting in Texas ...Service theft deterrent system?Service theft deterrent system chevy Gmc theft deterrent system reset: 4 causes & best solutionsService theft deterrent system gmc sierra. GM Vehicle Anti-Theft System Password Relearn - Auto Repair Technician Home. Check Details. Gmc theft deterrent system reset: 4 causes & best solutions..The Service Theft Deterrent System is an alert message that a GMC Terrain owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Terrain. If the key signature transmitted is acceptable to the theft deterrent control module, the theft deterrent control module will transmit fuel enable password to the PCM. If the fuel enable password is correct, the PCM will start the vehicle. To perform a relearn on a Passkey III system, make sure there is a fully charged battery in the vehicle. Try getting out and hitting the lock and unlock button with the clicker. See if it starts. If not try using the key in the door to lock and unlock it. That usually works! :rockin. Jason. 2006 Silverado 2500HD LBZ CC SB.Using key fob to unlock, gearing out & locking car using lock button on door. Have unhooked the battery to try to get to clear. Answered in 4 minutes by: RobertW710. RobertW710. Satisfied Customers: Ask Your Own GMC Question. RobertW710. Ask Your Own GMC Question.The Service Theft Deterrent System is an alert message that a GMC Envoy owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Envoy.Jul 24, 2012 · Lost or broken keys must be replaced with a key of the same resistive value. Get a key made at the dealer or a qualified locksmith. This system does not need to be reset if the PCM is replaced. Passkey II. This system also has a Theft Deterrent Module (TDM) but it’s programmed in to the body control module (BCM). To arm the theft-deterrent system: 1. Open the door. 2. Lock the door with the Remote Keyless Entry (RKE) transmitter. The security light should flash. If the delayed locking feature is active, the alarm will not be activated until all doors are closed and the security light goes off. 3. Close all doors. Gmc sierra theft deterrent system reset, How to disable a gm passkey system2015 gmc sierra theft deterrent system reset System diagram deterrent theft wiring 2000 autozone circuit fig 19992015 chevy silverado theft deterrent system reset. I have a 2008 gmc savana, passkey 3 theft deterrent system that is activated. the vehicle willDeterrent theft module gm 2003 chevy silverado ..., Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Buick LeSabre. Depending on the model year, your car's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle LeSabre theft deterrent system message, the system will …, hi, this happens every time the battery is disconnected, the security/theft prevention system lost the key/ignition lock code. there are a couple different theft deterret systems used by GM, and the re-learn procedures are similar. : THEFT DETERRENT PASSWORD RELEARN General Motors uses three different types of vehicle theft deterrent systems …, In a few words: The immobilizer or anti-theft system verifies that the key used to turn the engine on is the correct one. If the key is not the correct one, this system blocks different …, Step 1: Check for the anti-theft light. It’s located on your dash and will have a blue or red light. Step 2: Turn the ignition to the "on" position. Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Leave the key in position for about 10 – 15 minutes., How to Fix. What is GM’s Theft Deterrent System? What Does Service Theft Deterrent System Mean? GMC Yukon Service Theft Deterrent System Causes. …, ABOUT ADVANCED THEFT DETERRENT FEATURES. If equipped, this system can help deter the theft of your gas, wheels or vehicle as well as help protect against window break-ins., Jan 14, 2022 · 2008 lmm no start anti theft deterrent light on. So I have a 2008 gmc seirra 2500 lmm. Problem started out as a no start, no crank. After 4 days of looking for broken wires and cleaning up grounds, I finally found a bad ground wire. I replaced the ground wire , in process I also put in new batteries, as mine were getting bad. , Wait until the “Theft Sys” light on your dashboard stays on without blinking. This will take approximately 10 to 15 minutes. How do I turn off anti theft on my GMC Sierra? To reset the 2015 gmc sierra theft deterrent system unlock the driver’s side door with the key and then lock it, and then unlock it again and the system should be ..., Mar 14, 2023 · The Service Theft Deterrent System is an alert message that a GMC Envoy owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Envoy. , DTC P1631 indicates that the vehicle theft deterrent password that the PCM has learned does not agree with the password received from the VTD system. This condition can occur if the BCM has been replaced and the PCM Password Learn function has not been enabled. If the BCM has been replaced, the password must be relearned. Step. Action. Yes. No. 1., Aug 6, 2023 · 1. Use your GM keyless remote to unlock the doors by pressing the "Unlock" button. This button looks like an opened lock and is the best method for keyless entry. The other option is to unlock the doors with the GM key, and turn the car ignition switch key on via the lock cylinder. , Step 1: Check for the anti-theft light. It’s located on your dash and will have a blue or red light. Step 2: Turn the ignition to the "on" position. Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Leave the key in position for about 10 – 15 minutes., Theft deterrent system gmc sierra2007-2013 gmc sierra remote start alarm pager. Theft deterrent module help2018 chevy malibu theft deterrent system. 2020 GMC Sierra 1500 Denali 6.2L V8, REMOTE START, FORWARD COLLISION Check Details 2015 gmc sierra driver info center problem. 2020 gmc sierra 1500 denali 6.2l v8, remote start, forward ..., Lost or broken keys must be replaced with a key of the same resistive value. Get a key made at the dealer or a qualified locksmith. This system does not need to be reset if the PCM is replaced. Passkey II. This system also has a Theft Deterrent Module (TDM) but it’s programmed in to the body control module (BCM)., P1631: INCORRECT PASSWORD FROM THE VTD SYSTEM; P1632: UNDECIDED PASSWORD SENT FROM BCM; READ MORE ARTICLES ON OUR KNOWLEDGE BASE . GM VATs Relearn How to VATs relearn on early GM vehicles. GM Vehicle Theft Deterrent (VTD) Relearn Procedures. To perform a relearn for the Passkey III system, …, Dec 23, 2023 · Insert the ignition key into the ignition switch and turn it to the “On” position. Allow the vehicle to sit with the key in the “On” position for about 10 minutes. This gives the theft deterrent system time to reset. After waiting for 10 minutes, turn the key to the “Off” position. , Delco gmc partsgeek Theft silverado Service theft deterrent system. GMC Sierra 1500 Questions - Truck over revving in 1st shifts hard into. Key gmc sierra relearn Theft deterrent yukon silverado sierra escalade suburban tahoe 2011 gmc sierra 30-minute vehicle key relearn. Service theft deterrent system gm cadillac chevy gmc, The Service Theft Deterrent System is an alert message that a GMC Yukon owner may receive when their anti-theft system is not functioning properly. The two most common causes for it are a dead battery and key issues. Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the GMC Yukon., Leeparts tailgate deterrentPontiac firebird service theft deterrent system: causes + reset 1997 acura truck slx 3.2l mfi sohc 6cylService theft deterrent system gmc sierra. Yaopei oem 13500157 anti theft conroller theft deterrent module new oemService theft deterrent system gmc acadia Gmc theft deterrent system reset: 4 causes & best ..., Reset the car’s computer. This is another way to solve the problem of the anti theft system car wont start. Disconnect the positive terminal of the battery for a minute or two. Reconnect it and make sure that both the anode and cathode terminals are tightly attached. It will reset the computer system and your car is likely to kick off., How to disable a gm passkey system2015 gmc sierra theft deterrent system reset System diagram deterrent theft wiring 2000 autozone circuit fig 19992015 chevy silverado theft deterrent system reset. I have a 2008 gmc savana, passkey 3 theft deterrent system that is activated. the vehicle willDeterrent theft module gm 2003 chevy silverado ..., There is even a DIY plan for sale that they say can defeat the passlock; GM will not disable it. The only other way that I've read about is the "White/blue" method. ;-) Step One: Start the truck, leaving it in park, and running during this process. Step Two: Locate the plug pictured below, The plug is under the dash near the steering column., How-To do a Ring and Pinion change. RIP 2009 Chevy Silverado 1500 CCSB 2wd 5.3/6sp sadly sold with 197,849 miles on 4/8/24. “Life Is Hard. It’s Even Harder When You’re Stupid.”. - John Wayne. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread., 1. Put the key into the keyway and turn it to the ON (RUN) position. A "Security" indicator light on the dashboard will stay on for 10 minutes. 2. Within 1 minute after the indicator light goes off, turn the ignition to "OFF" then return to the ON (RUN) position. The indicator light again will stay on for 10 minutes., hi, this happens every time the battery is disconnected, the security/theft prevention system lost the key/ignition lock code. there are a couple different theft deterret systems used by GM, and the re-learn procedures are similar. : THEFT DETERRENT PASSWORD RELEARN General Motors uses three different types of vehicle theft deterrent systems …, Content Theft-Deterrent System To arm the content theft-deterrent alarm system, lock the doors using the Remote Keyless Entry (RKE) transmit-ter. The security light on the instrument panel cluster will flash for approximately 30 seconds to indicate the alarm is acti-vated. To disarm the system, unlock the doors using the RKE transmitter. , It was after I restarted the truck I noticed the Theft system light had come on. I have since tried everything I and everyone so far on web has thought of. I did the 10min key on off 5 secs and 10mins on again 3xs . But because truck still starts and runs fine it will not reset. I am lost now, 2016 gmc sierra 1500Theft deterrent gmc Gmc 2l v8 denaliChevy silverado theft deterrent system reset. 2019 chevrolet silverado offers a trailer theft alert systemPontiac firebird service theft deterrent system: causes + reset Theft deterrent system chevy impalaFor 2015-2018 gmc sierra 3500 hd anti-theft control module ac …, Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Silverado. Depending on the model year, your truck's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Silverado theft deterrent system message, the …, 2008 lmm no start anti theft deterrent light on. So I have a 2008 gmc seirra 2500 lmm. Problem started out as a no start, no crank. After 4 days of looking for broken wires and cleaning up grounds, I finally found a bad ground wire. I replaced the ground wire , in process I also put in new batteries, as mine were getting bad., Dec 16, 2021 · It was after I restarted the truck I noticed the Theft system light had come on. I have since tried everything I and everyone so far on web has thought of. I did the 10min key on off 5 secs and 10mins on again 3xs . But because truck still starts and runs fine it will not reset. I am lost now , There is even a DIY plan for sale that they say can defeat the passlock; GM will not disable it. The only other way that I've read about is the "White/blue" method. ;-) Step One: Start the truck, leaving it in park, and running during this process. Step Two: Locate the plug pictured below, The plug is under the dash near the steering column.