2011-2022 Hyundai Anti-Theft Software Update and Decals

Hyundai has issued Technical Service Bulletin (TSB) 23-01-014H-4, superseding TSB 23-01-014H-3, to address security enhancements for certain vehicles. This TSB, part of SERVICE CAMPAIGN 993, provides a crucial Hyundai anti-theft update for models that may not have been factory-equipped with an immobilizer. The update involves revising the software for the Integrated Body Control Unit/Body Control Module (IBU/BCM) and installing anti-theft decals on the front windows.

This initiative aims to improve the OEM Hyundai burglar alarm system operation and ignition start logic, thereby bolstering vehicle security. The Hyundai anti-theft update is a proactive measure to ensure these vehicles meet current security standards.

Why This Update Matters

Many modern vehicles rely on an immobilizer system to prevent unauthorized starting. For certain Hyundai models, the absence of a factory-installed immobilizer could leave them more vulnerable to theft. This TSB directly addresses this concern by providing a software update to the IBU/BCM, which controls critical security functions related to the vehicle's anti-theft system.

The software revision modifies how the burglar alarm system operates and how the ignition start logic functions, making it more difficult for unauthorized individuals to start the vehicle. Specifically, the TSB references various "IMMOBILIZER (BCM) LOGIC IMPROVEMENT" events, such as "980. YFA IMMOBILIZER (BCM) LOGIC IMPROVEMENT" for Sonata (YFa) models or "970.LX2 IMMOBILIZER (BCM) LOGIC IMPROVEMENT" for Palisade (LX2), indicating a direct enhancement to the vehicle's core security programming. Additionally, the installation of anti-theft decals serves as a visible deterrent, signaling to potential thieves that the vehicle is protected by enhanced security measures.

Important Warnings for Owners and Technicians

Hyundai has outlined several critical points regarding this service campaign:

• Dealer Responsibility: Dealers must perform this service campaign on all affected vehicles prior to customer retail delivery and whenever an affected vehicle is in the shop for any maintenance or repair. Dealers can identify open campaigns by accessing the "Vehicle Information" screen via WEBDCS.
• Aftermarket Systems: "Vehicles equipped with aftermarket/add-on alarms or remote start systems may not operate normally if the IBU/BCM is updated with this software." Owners with such systems should be aware of this potential conflict.
• Manual Update Caution: If the Auto Mode update is not available due to an unidentified ROM ID, technicians are instructed to "DO NOT perform the update using Manual Mode, call Techline for further instructions." This prevents incorrect software installation.
• Post-Update Issues: "If there are issues with the software update or certain features not operating normally on the vehicle after the update, then perform capacitive discharged and try again." This provides a first troubleshooting step for technicians.
• Decal Handling: When installing the anti-theft decals, technicians are warned: "Avoid touching the bottom (glue side) of the decal as the fingerprint will reduce the adhesive strength to the window glass."
• Tinted Windows: "If the window is tinted with a non-legal shade, inform the customer of the possible poor visibility of the anti-theft decals." This ensures customer awareness regarding the decal's effectiveness.
• Key Fob Functionality: "Once the upgrade procedure has been completed, the key fob buttons to lock and unlock the vehicle are required to activate/deactivate the anti-theft system. After using the key fob to activate the anti-theft system, the key fob must be used to first disarm the system prior to attempting to start the vehicle." This is a crucial operational change for owners to understand after the update.
• Guided Video Information: Technicians can refer to a guided video for additional information at https://vimeo.com/796843448/49ace103a8.

Repair Procedure Summary

The service procedure for this Hyundai anti-theft update involves a multi-step process including inspection, software update, and decal installation. The entire process is covered under TSB 23-01-014H-4.

STUI Requirements

This TSB explicitly states that it may include a STUI (Service Technical Update Information) picture as a requirement. Technicians must follow specific steps regarding the use of STUI. All claims submitted with illegible, incomplete, missing, or incorrect pictures are subject to debit, emphasizing the importance of proper documentation for this service campaign.

Inspection

Before proceeding with the software update, technicians must first inspect the vehicle to determine if it requires the full procedure. This involves checking for the presence of a START/STOP button or an immobilizer lamp, and documenting the findings using the STUI system.

1. START/STOP Button Check: Technicians visually confirm if the vehicle is equipped with a START/STOP button. If present, a picture of the button, along with the last 6 digits of the VIN and the repair date, is taken using the STUI system and uploaded. An example image on page 30 illustrates this process, showing a START/STOP button with a VIN and date on a piece of paper (Figure 1).
2. Immobilizer Lamp Check: If the vehicle does not have a START/STOP button (meaning it uses a mechanical key ignition), the technician turns the ignition to the ON position. They then visually confirm if an immobilizer lamp is displayed on the instrument cluster. Similar to the START/STOP check, a picture of the immobilizer lamp with VIN and date is taken and uploaded via STUI. An example image on page 30 shows the immobilizer lamp illuminated on the instrument cluster (Figure 2).

If the vehicle is equipped with either a START/STOP button or an immobilizer lamp, the inspection is complete, and an "INSPECTION ONLY" campaign claim is submitted. The full software update and decal installation are only performed if the vehicle is not equipped with either of these features.

Software Update Details

The core of the Hyundai anti-theft update is the IBU/BCM software revision. This process requires the use of the GDS (Global Diagnostic System) and involves specific steps to ensure correct installation.

1. Initial Check and ROM ID Identification: Before starting the update, technicians must check the vehicle's current IBU/BCM ROM ID and compare it to the extensive ROM ID information tables provided in the TSB (pages 6-29). These tables list the "OLD" and "NEW" ROM IDs for various models and model years, along with corresponding manual mode passcodes. This comparison determines if an update is needed and which specific PASSCODE to use for manual updates. The TSB provides specific "IMMOBILIZER (BCM) LOGIC IMPROVEMENT" event descriptions for each model, such as "980. YFA IMMOBILIZER (BCM) LOGIC IMPROVEMENT" for Sonata (YFa) or "970.LX2 IMMOBILIZER (BCM) LOGIC IMPROVEMENT" for Palisade (LX2). The current ROM ID must be recorded, as it dictates the correct PASSCODE for manual updates if needed.
2. GDS Procedure: The update must initially be performed in Auto Mode using the GDS. Technicians are referred to TSB 15-GI-001 for detailed procedures on using the tablet-based Mobile GDS ECU update system.
3. Manual Mode Recovery: If the IBU/BCM update starts but then fails in Auto Mode, technicians can attempt to recover by performing the update in Manual Mode. However, if Auto Mode is unavailable due to an unidentified ROM ID, manual updates are explicitly prohibited, and Techline must be contacted.
4. System Selection: On the ECU Upgrade screen within the GDS, technicians must select "IBU/BCM" as the system to update, followed by "ID Check." Page 32 of the TSB shows screenshots of the GDS interface, illustrating the selection of IBU/BCM and the ID Check screen, which displays the "Currently in Vehicle" ROM ID and the "Latest Update" ROM ID.
5. Post-Update Verification: After the software update is complete, technicians must check for Diagnostic Trouble Codes (DTCs) in all menus and erase any present codes. Finally, they ensure the update was successful by verifying the latest ROM ID against the new ROM ID values in the TSB tables. Page 32 includes a screenshot confirming "The ECU Upgrade has successfully completed."

Anti-Theft Decal Installation

Simultaneously with the software update, two anti-theft decals (part number NP001-SC993) are installed on the front windows. This is a crucial part of the Hyundai anti-theft update package, serving as a visual deterrent. The anti-theft decals installation should be performed while the BCM software is being updated.

1. Template Preparation: Technicians print the last page of the TSB (page 37), which serves as a template for decal placement. This template is folded upward from the bottom along the solid line, and the two rectangular cut-outs for the decals are removed. Page 33 shows images of the template being folded and cut.
2. Window Cleaning: The inside lower left corner of the front driver's side window and the lower right corner of the front passenger's side window are thoroughly cleaned with rubbing alcohol and a new rag. This ensures optimal adhesion.
3. Template Placement: The prepared template is aligned approximately 1/4 inch next to the existing label's edge on the window glass and secured with masking tape. Page 34 provides visual guidance for this alignment.
4. Decal Application: Two anti-theft decals are torn or cut from the roll. Without touching the bottom (glue side) of the decal to prevent fingerprints from reducing adhesive strength, the paper backing is carefully pulled back halfway. The decal is then aligned within the template's cut-out and firmly pressed onto the window glass with a thumb, ensuring no air bubbles are trapped underneath. Page 35 illustrates the decal application process.
5. Completion: The template is removed, and the process (steps 5-9) is repeated for the other window. Page 36 shows final images of the installed decals on both driver and passenger front windows, complete with VIN and date for STUI photo submission.

Required Parts

For this service campaign, the primary required part is:

• Anti-Theft Decal: Part Number NP001-SC993. These decals are ordered in rolls of 500. Ordering information can be found in the SC993 Parts Bulletin located in the Documents Library in WebDCS.

Warranty Information

Warranty claims for this service campaign must be submitted on the Campaign Claim Entry Screen. If a non-campaign part requires replacement during this service and is still under warranty, a separate claim should be submitted. For out-of-warranty parts, a Prior Approval request for goodwill consideration is necessary.

There are two main operation types for this campaign, each with specific labor operation codes, times, and causal parts:

Inspection Only (Vehicle has START/STOP Button or Immobilizer Lamp)

This applies to vehicles that are found to have either a START/STOP button or an immobilizer lamp during the initial inspection. The operation code for this is INSPECTION ONLY – VEHICLE HAS START STOP BUTTON OR IMMOBILIZER LAMP.

Model	OP. CODE	OP. TIME	CAUSAL PART	NATURE	CAUSE
Sonata (LFa)	HYIMMOC4	0.1 M/H	95400-C2100	114	ZZ3
Elantra (AD) “KMH”	HYIMMOC5	0.1 M/H	95400-F2AW0	114	ZZ3
Elantra (ADa) “5NP”	HYIMMOC6	0.1 M/H	95400-F2AW0	114	ZZ3
Venue (QX)	HYIMMOC7	0.1 M/H	95400-K2500	114	ZZ3
Kona (OS)	HYIMMOC8	0.1 M/H	95400-J9GJ0	114	ZZ3
Veloster (FS)	HYIMMOC9	0.1 M/H	95400-2V054	114	ZZ3
Veloster (JS)	HYIMMOD0	0.1 M/H	95400-J3720	114	ZZ3
Sonata (YFa)	HYIMMOD1	0.1 M/H	95400-3Q000	114	ZZ3
Elantra (CN7) “KMH”	HYIMMOD2	0.1 M/H	95400-AA920	114	ZZ3
Elantra (CN7a) “5NP”	HYIMMOD3	0.1 M/H	95400-AB100	114	ZZ3
Elantra GT (PD)	HYIMMOD4	0.1 M/H	95400-G3970	114	ZZ3
Accent (HC)	HYIMMOD5	0.1 M/H	95400-J0400	114	ZZ3
Tucson (LM)	HYIMMOD6	0.1 M/H	95400-2S710	114	ZZ3
Tucson (TL)	HYIMMOD7	0.1 M/H	95400-D3600	114	ZZ3
Tucson (NX4) “KM8”	HYIMMOD8	0.1 M/H	95400-N9001	114	ZZ3
Tucson (NX4a) “5NM”	HYIMMOD9	0.1 M/H	95400-CW051	114	ZZ3
Santa Fe Sport (AN)	HYIMMOE0	0.1 M/H	95400-4Z100	114	ZZ3
Santa Fe (NC)	HYIMMOE1	0.1 M/H	95400-4Z240	114	ZZ3
Santa Fe (TMa) “5NM”	HYIMMOE2	0.1 M/H	95400-S2500	114	ZZ3
Elantra (UD) “5NP”	HYIMMOE3	0.1 M/H	95400-3X530	114	ZZ3
Elantra (MD) “KMH”	HYIMMOE4	0.1 M/H	95400-3X570	114	ZZ3
Elantra GT (GD)	HYIMMOE5	0.1 M/H	95400-A5510	114	ZZ3
Palisade (LX2)	HYIMMOE6	0.1 M/H	95400-S8MB0	114	ZZ3
Genesis Coupe (BK)	HYIMMOE7	0.1 M/H	95400-2M870	114	ZZ3

Inspection and BCM/IBU Upgrade and Decals Application

This operation applies to vehicles that are not equipped with a START/STOP button or an immobilizer lamp, requiring the full software update and decal installation. The operation code for this is INSPECTION AND BCM/IBU UPGRADE AND DECALS APPLICATION.

Model	OP. CODE	OP. TIME	CAUSAL PART	NATURE	CAUSE
Sonata (LFa)	HYIMMOA0	0.3 M/H	95400-C2100	114	ZZ3
Elantra (AD) “KMH”	HYIMMOA1	0.3 M/H	95400-F2AW0	114	ZZ3
Elantra (ADa) “5NP”	HYIMMOA2	0.3 M/H	95400-F2AW0	114	ZZ3
Venue (QX)	HYIMMOA3	0.3 M/H	95400-K2500	114	ZZ3
Kona (OS)	HYIMMOA4	0.3 M/H	95400-J9GJ0	114	ZZ3
Veloster (FS)	HYIMMOA5	0.3 M/H	95400-2V054	114	ZZ3
Veloster (JS)	HYIMMOA6	0.3 M/H	95400-J3720	114	ZZ3
Sonata (YFa)	HYIMMOA7	0.4 M/H	95400-3Q000	114	ZZ3
Elantra (CN7) “KMH”	HYIMMOA8	0.4 M/H	95400-AA920	114	ZZ3
Elantra (CN7a) “5NP”	HYIMMOA9	0.4 M/H	95400-AB100	114	ZZ3
Elantra GT (PD)	HYIMMOBO	0.3 M/H	95400-G3970	114	ZZ3
Accent (HC)	HYIMMOB1	0.3 M/H	95400-J0400	114	ZZ3
Tucson (LM)	HYIMMOB2	0.3 M/H	95400-2S710	114	ZZ3
Tucson (TL)	HYIMMOB3	0.3 M/H	95400-D3600	114	ZZ3
Tucson (NX4) “KM8”	HYIMMOB4	0.3 M/H	95400-N9001	114	ZZ3
Tucson (NX4a) “5NM”	HYIMMOB5	0.3 M/H	95400-CW051	114	ZZ3
Santa Fe Sport (AN)	HYIMMOB6	0.3 M/H	95400-4Z100	114	ZZ3
Santa Fe (NC)	HYIMMOB7	0.3 M/H	95400-4Z240	114	ZZ3
Santa Fe (TMa) “5NM”	HYIMMOB8	0.3 M/H	95400-S2500	114	ZZ3
Elantra (UD) “5NP”	HYIMMOB9	0.3 M/H	95400-3X530	114	ZZ3
Elantra (MD) “KMH”	HYIMMOCO	0.3 M/H	95400-3X570	114	ZZ3
Elantra GT (GD)	HYIMMOC1	0.3 M/H	95400-A5510	114	ZZ3
Palisade (LX2)	HYIMMOC2	0.3 M/H	95400-S8MB0	114	ZZ3
Genesis Coupe (BK)	HYIMMOC3	0.3 M/H	95400-2M870	114	ZZ3

Owner Action and Next Steps

If you own a Hyundai model from 2011 to 2022 listed in the affected vehicles section, it is recommended to contact your authorized Hyundai dealer. They can check if your vehicle is subject to this Hyundai anti-theft update (SERVICE CAMPAIGN 993) and schedule the necessary service. This update is performed free of charge under the service campaign. Be aware of the key fob operational change after the update, where the key fob must be used to activate/deactivate and disarm the anti-theft system before starting the vehicle.

Troubleshooting Tips

If, after the software update, certain features are not operating normally, or if other issues arise, the TSB suggests performing a capacitive discharge and attempting the update again. This involves disconnecting the vehicle's battery for a short period to clear residual electrical charges, which can sometimes resolve electronic control unit (ECU) related issues. The TSB also mentions that if the software update process fails in Auto Mode, technicians should attempt to recover by performing the update in Manual Mode, but only if the ROM ID is identified. If the ROM ID is unidentified, Techline must be contacted instead of attempting a manual update.

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Source: NHTSA ID: 10235556