Gmc sierra theft deterrent system reset

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).

When armed, the theft deterrent system is designed to prevent vehicle content theft. It does this by activating the horns and exterior lamps when a break in is detected. This is a content theft prevention system only, and does not affect the engine starting system. In this system, the body control module (BCM) monitors the hood, door …The GM manufacturer installs the paslock theft system feature to keep the cars from being stolen. But there have been consumer reports for glitches with trying to start the vehicle and the security (theft sys) light will be illuminated. ... To reset the 2005 GMC Canyon passlock You will start off by turning the ignition key to the "Run ...Vehicle Anti Theft System Reset Override Technique-GMC Sierra or Silverado - YouTube. DIYTechnician. 9.98K subscribers. Subscribed. 510. 220K views 4 years ago. Buy me a …How to Reset GM Theft Deterrent System 1. Unlock Doors. Once the theft deterrent system has gone off, the only way to reset it is by unlocking the doors. You can use your key fob to hit the Unlock button. … 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. Feb 1, 2009 · With an unlearned master vehicle key, turn ON the ignition, with the engine OFF. Observe the security indicator, after approximately 10 minutes the telltale will turn off. Turn OFF the ignition, and wait 5 seconds . Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes . The content theft-deterrent alarm is not armed until the security light goes off. The theft-deterrent system will not activate if the doors are locked with the vehicle's key or the manual door lock. If a locked door is opened without using the RKE transmitter, a 10-second pre-alarm occurs. The horn chirps and the lights flash.

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, …The Service Theft Deterrent System is an alert message that a Chevy HHR 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 HHR.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 . 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 ... 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.Xtremegard Prepaid Maintenance Protection provides protection against rising maintenance costs by covering your regular scheduled services for up to three years. 888.464.3774. 34555 CHAGRIN BLVD. SUITE 100. MORELAND HILLS, OHIO 44022. Home : Automotive Products : Universal Theft Deterrent.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.

SIERRA TACTICAL BOND FUND CLASS C SHARES- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies StocksI have been reading about the theft deterrent system on my truck. I didn't purchase the "Content Theft-Deterrent, Remote Keyless Entry (RKE)" system. ... 2006 Sierra SLE HD 2500 4wd ,stock This thing rocks :cool2: ... 2011 GMC 2500HD Denali CCSB, DVD, Nav, Sunroof etc..... Mods to come 2011 F250 Lariat 6.7L - Sold 2009 …Art-deco design cues of the 1937 GMC pickup included an intricate grille and sweeping lines. See pictures and learn about the elegant 1937 GMC pickup. Advertisement With styling in...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 :Nov 29, 2021 · Use the key fob remote to lock and unlock the doors. Turn the ignition on for 30 seconds and it should start. If it doesn't then lock and unlock the driver door with the physical key and turn the ignition on for 30 seconds. Apr 2, 2021 ... Comments11 ; GMC TRUCK WON'T CRANK! No Communication. Busted to Built · 48K views ; Anti Theft Car System Reset PROBLEM SOLVED. Santana Outdoors ...

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The content theft-deterrent alarm is not armed until the security light goes off. The theft-deterrent system will not activate if the doors are locked with the vehicle's key or the manual door lock. If a locked door is opened without using the RKE transmitter, a 10-second pre-alarm occurs. The horn chirps and the lights flash. Jun 4, 2018 · 1 Answer. When there's a warning message, there's a trouble code stored. That's where you start. let it sit for about an hour, untouched to let it clear out of theft mode. If it doesn't start with a programmed key after that, you may have to take it into a shop and have it looked at. 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.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.Service theft deterrent systemGm system passkey disable theft ehow deterrent reset Theft deterrent systemTheft deterrent wiring diagram on 2006 pontiac torrent. Theft-deterrent systemGm 2013+ console theft deterrent module receiver assembly new Deterrent theft anti layout systemModule theft deterrent gm trying …A theft deterrent system is a safety feature in Chevy and GM vehicles that acts as an anti-theft system. If the system detects a break-in attempt, it will signalize the owner via an alarm and utilize systems to prevent the engine from starting without a key. The system operates electronically via numerous sensors in the car and on the vehicle ...

So far it has always started after that bringing up the “service theft deterrent system” and the icon on the dash showing the vehicle/padlock. Once the vehicle is turned off and on again after getting it started those warnings/indicators disappear. ... and radio stations reset. You need to let the “Cue” system boot all the way after ...Repeat this process for up to 3 times; this should work with any PassKEY system on the 2007 Chevrolet Silverado to reset the alarm. Put they key in the ignition and turn it to one, then wait 10 minutes. After ten minuets the theft system will be reset. II did that and my security light came back on.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.Mar 27, 2010 · Passlock theft deterrent episode--Truck Disabled. I mistakenly tried to start my truck with an identical-looking spare key from another truck. It triggered a theft-deterrent episode and now the fuel is disabled. On startup, it runs a couple seconds and displays the symbol as it shuts down. The manual says to contact the dealership. 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.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 … 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. Top Answer. Mike E February 1, 2021. To reset the alarm on the 2015 GMC sierra You have two options. You can pop the hood and disconnect the positive battery cable, then leave it off for about 30 minutes. This will make the power in the CPU drain, which will force the system to reset itself the next time it comes on.GM vehicles have three types of Vehicle Thief Deterrent (VTD) systems, each requiring their own set of relearn procedures. Unless these procedures are correctly performed the vehicle will not start after the PCM has been replaced. The three systems are: Vehicle Anti-Theft System (VATS), Passkey, & Passkey II – resistive chip ignition keyMost GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Suburban. Depending on the model year, your vehicle's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Suburban theft deterrent system message, the …Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Chevy Trailblazer. Depending on the model year, your vehicle's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Trailblazer theft deterrent system message, the …

Mar 27, 2010 · Passlock theft deterrent episode--Truck Disabled. I mistakenly tried to start my truck with an identical-looking spare key from another truck. It triggered a theft-deterrent episode and now the fuel is disabled. On startup, it runs a couple seconds and displays the symbol as it shuts down. The manual says to contact the dealership.

In this video, I'm going to show you how to unlock all the secrets to programming GM Keys to disable theft deterrents. By following these easy steps, you'll ...Jun 23, 2013 · Indicator light and the warning are now gone. 2012 GMC Sierra 2500 Duramax, H&S XRT Pro, DPF delete, urea tank gone, 4" Flo-Pro, 40" Donaldson muffler keeps it quiet outside, 11" DVD overhead keeps it quiet inside :neener, and AirLift bags keeps it levelled, 305/55R20, Hankook Dynapro ATM, 20x9, +18 offset, large fender, mud flaps don't rub, 4 ... 9,990 POSTS. This should work to reset the security system. 30 Minute Learn Procedure. Turn ON the ignition, with the engine OFF. Attempt to start the engine, then release the key to ON; the vehicle will not start. Observe the SECURITY telltale; after approximately 10 minutes the telltale will turn OFF. Turn OFF the ignition, and wait 5 seconds.Feb 6, 2020 · 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... 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. Here’s how. To reset your Chevy Silverado’s anti-theft system, you put the key in the ignition and put your car into accessory mode—meaning the car’s electrical system is on but the engine is off. Leave your key in the ignition for about 10 minutes, then start up the engine. After all that, the security light should stop blinking.I plan to get inspection 1st , then disconnect the battery to try and reboot the theft system. Like I said I tried to reset it by using key in on position 10 mins and off for 5 secs and recycled for 3 attempts (a few times) Light never flashes or resets. TRUCK still runs fine. No theft lock out.Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Saturn Outlook. Depending on the model year, your vehicle's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Outlook theft deterrent system message, the …

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Windows makes it extremely easy to change almost all of the settings that affect the look and feel of the operating system and how the hardware functions. This makes it quick and s...Mar 27, 2020 ... This is a 2016 GMC Sierra 1500, approx. 53000 miles. When trying to start the truck, getting a "Sercice Anti-Theft Device" glitch that ...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...Jun 25, 2015 · 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 ... 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 …Apr 19, 2021 · How to reset theft deterrent on gm vehicles (Gmc, Chevrolet, Cadillac, Pontiac, Saturn, etc) DIY deterrent system device light reset, service deterrent system reset Gmc Chevrolet... Jan 24, 2012 ... 2:06 · Go to channel · How to Reset Antitheft Passlock Light in your GM - Chevy GMC Silverado Sierra Tahoe. GK7 Garage•530K views · 8:57 &midd...After deactivating it, you can reset the alarm to ensure that your GM vehicle security system is set correctly. Step 1 - Use your GM keyless remote to unlock the doors by pressing the "Unlock" button. This button looks like an opened lock. The other option is to unlock the doors with the GM key, and turn the car ignition on.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 …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 gmcIndicator light and the warning are now gone. 2012 GMC Sierra 2500 Duramax, H&S XRT Pro, DPF delete, urea tank gone, 4" Flo-Pro, 40" Donaldson muffler keeps it quiet outside, 11" DVD overhead keeps it quiet inside :neener, and AirLift bags keeps it levelled, 305/55R20, Hankook Dynapro ATM, 20x9, +18 offset, large fender, mud flaps don't rub, 4 ...When your vehicle Sierra theft deterrent system message, the system will not let the vehicle start. Resetting the system takes about a half hour and is something … ….

Apr 23, 2011 · 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. 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.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..Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Saturn Outlook. Depending on the model year, your vehicle's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle Outlook theft deterrent system message, the …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..Dec 18, 2010 · Involved are all 2007 and certain 2008 Chevrolet Silverado, Express; GMC Sierra and Savana vehicles, equipped with a 6.6L Duramax Diesel V8 (RPO LMM - VIN 6) engine and built within these VIN breakpoints: Year Division Model From Through 2007 Chevrolet Silverado HD 7E500051 7E604226 7F500001 7F567568 2007 Chevrolet Express 71129148 71254841 ... Passlock theft deterrent episode--Truck Disabled. I mistakenly tried to start my truck with an identical-looking spare key from another truck. It triggered a theft-deterrent episode and now the fuel is disabled. On startup, it runs a couple seconds and displays the symbol as it shuts down. The manual says to contact the dealership.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. Gmc sierra theft deterrent system reset, Jul 11, 2017 ... Comments313 · 3 WAYS TO START YOUR 2006 CHEVY WHEN IT WON'T START!! · 2002 cavalier anti theft system reset., 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., 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 ..., This is an essential component that guards your vehicle against theft. However, it can malfunction and send false alarms. In this article, we’ll explain what causes the service theft deterrent system …, 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..., , 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., 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. , Xtremegard Prepaid Maintenance Protection provides protection against rising maintenance costs by covering your regular scheduled services for up to three years. 888.464.3774. 34555 CHAGRIN BLVD. SUITE 100. MORELAND HILLS, OHIO 44022. Home : Automotive Products : Universal Theft Deterrent., 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. , The GMC Sierra is a popular choice among truck enthusiasts for its performance, durability, and stylish design. One aspect that sets the Sierra apart from other trucks on the marke..., How To get rid of the Service Theft Deterrent System message on your vehicle - GM Cadillac Chevy GMCPlease LIKE AND SHARE if you Enjoyed this Video!Thank you..., 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. , Is your computer running slower than usual? Are you experiencing issues with time synchronization on your device? It might be time to reset the clock on your computer. Resetting th..., 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 …, Mar 14, 2023 · 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. , Jan 2, 2010 · 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 : , How to reset antitheft passlock light in your gm Service theft deterrent system gmc sierra Theft anti 2000 system autozone fig For 2015-2018 gmc sierra 3500 hd anti-theft control module ac d, 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..., Most GM vehicles built in the last 20+ years have a theft deterrent system, that includes the Cadillac XT5. Depending on the model year, your vehicle's theft deterrent system disables the fuel pump, ignitions system, or starter if unauthorized access is detected. When your vehicle XT5 theft deterrent system message, the system will not let, Haven't in the C7 but got a theft warning in our XTSvsport. It was legit, there was an attempted break-in. Found the front passenger door handle stuck out. Pushed it back to normal. The door worked, no damage. When I started the car the theft attempted warning came up. I think somebody tried to get in the car by pulling the door handle real …, Buy me a coffee? https://www.buymeacoffee.com/diytechnician Buy me a coffee? https://www.buymeacoffee.com/diytechnician After replacing the …, So far it has always started after that bringing up the “service theft deterrent system” and the icon on the dash showing the vehicle/padlock. Once the vehicle is turned off and on again after getting it started those warnings/indicators disappear. The dealership says they can’t fix it unless they can get it to do the same thing., The 2014 Chevrolet Silverado 1500 has 5 problems reported for won't turn on, theft deterrent system. Average failure mileage is 58,950 miles., Turn ignition to the “OFF” position, and wait 10. Attempt to start the engine, and then release the key to the “ON”. Observe the “SECURITY” indicator After 10 minutes the “SECURITY” indicator light will turn off. Turn ignition to the “OFF” position, and wait 10. Vehicle has now learned the new password. Start the., Mar 14, 2023 · 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. , When your vehicle Sierra theft deterrent system message, the system will not let the vehicle start. Resetting the system takes about a half hour and is something you can often do yourself at home. The two most common causes of “Service Theft Deterrent System” are a bad battery or a new/faulty key., You try to turn the engine on, but it won’t startup. This is a simple computer issue, and can usually be solved with a system reset. This fix has been tested on a …, 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., 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., 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 …, 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., The Service Theft Deterrent System is an alert message that a Chevy Sonic 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 Sonic.