Hyundai Elantra Service Bulletins (2020)

99 manufacturer communications on file.

• October 8, 2026•Document ID: 11038458

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  26-EM-016H TSB

  Date Added:

  October 14, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26-EM-015H, Engine Oil Consumption – Inspection & Repair Guidelines, or the latest revision.

  Associated Products (174)

  2027 Hyundai Kona2027 Hyundai Santa Fe2026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Kona2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Kona2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Kona2024 Hyundai Santa Fe2024 Hyundai Sonata2024 Hyundai Tucson+ 154 more
  Associated Documents

  • DownloadMC-11038458-0001.pdf↗
• October 7, 2026•Document ID: 11038456

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  26-EM-015H TSB

  Date Added:

  October 13, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level.

  Associated Products (252)

  2027 Hyundai Kona2027 Hyundai Palisade2027 Hyundai Santa Fe2026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Kona2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Kona2025 Hyundai Palisade2025 Hyundai Santa Cruz2025 Hyundai Santa Fe2025 Hyundai Sonata2025 Hyundai Tucson+ 232 more
  Associated Documents

  • DownloadMC-11038456-0001.pdf↗
• September 11, 2026•Document ID: 11037292

  Service Campaign
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  9D3 OL

  Date Added:

  September 11, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Hyundai has become aware that your Hyundai Elantra equipped with a 2.0 ATK engine may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software intended only for Korean-built Elantra vehicles and may not meet specifications.

  Associated Products (2)

  2020 Hyundai Elantra2019 Hyundai Elantra
  Associated Documents

  • DownloadMC-11037292-0001.pdf↗
• August 6, 2026•Document ID: 11036204

  Service Campaign
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-01-039H DN

  Date Added:

  August 15, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles. In addition, the California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.

  Associated Products (2)

  2020 Hyundai Elantra2019 Hyundai Elantra
  Associated Documents

  • DownloadMC-11036204-0001.pdf↗
• August 6, 2026•Document ID: 11036202

  Service Campaign
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  26-01-039H TSB

  Date Added:

  August 15, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles. This bulletin provides instructions to perform a software update for the Engine Control Module (ECM) to revert to the original ROM ID, apply the emissions label under the hood, and provide the vehicle owner with Proof of Correction.

  Associated Products (2)

  2020 Hyundai Elantra2019 Hyundai Elantra
  Associated Documents

  • DownloadMC-11036202-0001.pdf↗
• April 18, 2026•Document ID: 11031400

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-EE-003H TSB

  Date Added:

  April 21, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solenoid) assembly.

  Associated Products (39)

  2026 Hyundai Venue2025 Hyundai Kona2024 Hyundai Kona2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Kona2023 Hyundai Santa Fe2023 Hyundai Sonata2023 Hyundai Tucson2023 Hyundai Venue2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2022 Hyundai Sonata2022 Hyundai Tucson2022 Hyundai Veloster2022 Hyundai Venue2021 Hyundai Elantra2021 Hyundai Kona+ 19 more
  Associated Documents

  • DownloadMC-11031400-0001.pdf↗
• April 10, 2026•Document ID: 11032523

  Other
  AIR BAGS

  Mfr Comm. #:

  DTN DL

  Date Added:

  May 8, 2026

  Manufacturer:

  GENESIS

  Summary

  The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians.

  Associated Products (325)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Ioniq 52026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 62026 Hyundai Ioniq 6 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Nexo2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson+ 305 more
  Associated Documents

  • DownloadMC-11032523-0001.pdf↗
• April 10, 2026•Document ID: 11032522

  Other
  AIR BAGS

  Mfr Comm. #:

  DTN DCS

  Date Added:

  May 8, 2026

  Manufacturer:

  HYUNDAI

  Summary

  The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.

  Associated Products (325)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Ioniq 52026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 62026 Hyundai Ioniq 6 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Nexo2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson+ 305 more
  Associated Documents

  • DownloadMC-11032522-0001.pdf↗
• December 19, 2025•Document ID: 11026704

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  P33 OL

  Date Added:

  December 19, 2025

  Manufacturer:

  HYUNDAI

  Summary

  In response to this trend, we engineered a software upgrade that addresses the social media theft method and made it available to owners of eligible models free of charge at authorized Hyundai dealers since early 2023. In addition to the anti-theft software, we’ve developed a new zinc-reinforced ignition cylinder protector hardware upgrade that can be installed at the ignition cylinder location to provide additional protection against the social media theft method. Because your Hyundai vehicle with the VIN listed above (“Subject Vehicle”) was not factory-equipped with an engine immobilizer and was previously eligible for the software upgrade, you are now eligible until March 31, 2027 to have the ignition cylinder protector installed — if you request it — at no cost to you through an authorized Hyundai dealership.

  Associated Products (83)

  2022 Hyundai Accent2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2022 Hyundai Tucson2021 Hyundai Accent2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Tucson2021 Hyundai Veloster2021 Hyundai Venue2020 Hyundai Accent2020 Hyundai Elantra2020 Hyundai Elantra GT2020 Hyundai Kona2020 Hyundai Palisade2020 Hyundai Santa Fe2020 Hyundai Tucson+ 63 more
  Associated Documents

  • DownloadMC-11026704-0001.pdf↗
• December 15, 2025•Document ID: 11027035

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-089H DCS

  Date Added:

  January 6, 2026

  Manufacturer:

  HYUNDAI

  Summary

  Upon customer's request ONLY, the Technical Service Bulletin (TSB) 25-01-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows. This repair procedure is being provided in addition to the previous Anti-Theft software provided under Service Campaign 993 (TSB 24-01-009H-1).

  Associated Products (83)

  2022 Hyundai Accent2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2022 Hyundai Tucson2021 Hyundai Accent2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Tucson2021 Hyundai Veloster2021 Hyundai Venue2020 Hyundai Accent2020 Hyundai Elantra2020 Hyundai Elantra GT2020 Hyundai Kona2020 Hyundai Palisade2020 Hyundai Santa Fe2020 Hyundai Tucson+ 63 more
  Associated Documents

  • DownloadMC-11027035-0001.pdf↗
• December 15, 2025•Document ID: 11027034

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-089H DN

  Date Added:

  January 6, 2026

  Manufacturer:

  HYUNDAI

  Summary

  In addition to the Anti-Theft software provided under Service Campaign 993 (TSB 24-01-009H-1), a zinc reinforced ignition cylinder protector hardware upgrade is being made available to customers upon request. This supplemental security measure is to be installed at the ignition switch location and provides additional protection against the social media theft method. Vehicles not equipped with an immobilizer during production at the factory are eligible. The repair procedure shall be performed and claimed upon customer request only. Any future repairs to these vehicles in which an installed ignition cylinder protector impacts required parts and/or labor, shall be covered by HMA. Please see TSB 25-01-089H for details.

  Associated Products (83)

  2022 Hyundai Accent2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2022 Hyundai Tucson2021 Hyundai Accent2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Tucson2021 Hyundai Veloster2021 Hyundai Venue2020 Hyundai Accent2020 Hyundai Elantra2020 Hyundai Elantra GT2020 Hyundai Kona2020 Hyundai Palisade2020 Hyundai Santa Fe2020 Hyundai Tucson+ 63 more
  Associated Documents

  • DownloadMC-11027034-0001.pdf↗
• December 15, 2025•Document ID: 11027033

  Other
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-089H TSB

  Date Added:

  January 6, 2026

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows.

  Associated Products (83)

  2022 Hyundai Accent2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2022 Hyundai Tucson2021 Hyundai Accent2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Tucson2021 Hyundai Veloster2021 Hyundai Venue2020 Hyundai Accent2020 Hyundai Elantra2020 Hyundai Elantra GT2020 Hyundai Kona2020 Hyundai Palisade2020 Hyundai Santa Fe2020 Hyundai Tucson+ 63 more
  Associated Documents

  • DownloadMC-11027033-0001.pdf↗
• November 6, 2025•Document ID: 11025476

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  25-BD-012H TSB

  Date Added:

  November 12, 2025

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.

  Associated Products (327)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV702026 Genesis GV802026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2026 Hyundai Venue2025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV702025 Genesis GV802025 Hyundai Elantra+ 307 more
  Associated Documents

  • DownloadMC-11025476-0001.pdf↗
• May 8, 2025•Document ID: 11018575

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-024H-1 TSB

  Date Added:

  May 27, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.

  Associated Products (96)

  2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 52025 Hyundai Ioniq 62025 Hyundai Nexo2025 Hyundai Palisade2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Santa Cruz2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 6+ 76 more
  Associated Documents

  • DownloadMC-11018575-0001.pdf↗
• April 7, 2025•Document ID: 11017111

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-024H EM

  Date Added:

  April 18, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are experiencing issues with remote commands, or other Bluelink services, please see the instructions below to reestablish the connection via the AVN pinhole reset method.

  Associated Products (97)

  2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 52025 Hyundai Ioniq 62025 Hyundai Nexo2025 Hyundai Palisade2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 6+ 77 more
  Associated Documents

  • DownloadMC-11017111-0001.pdf↗
• March 18, 2025•Document ID: 11015936

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-01-024H TSB

  Date Added:

  March 25, 2025

  Manufacturer:

  HYUNDAI

  Summary

  Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.

  Associated Products (96)

  2026 Hyundai Venue2025 Hyundai Elantra2025 Hyundai Elantra N2025 Hyundai Ioniq 52025 Hyundai Ioniq 62025 Hyundai Nexo2025 Hyundai Palisade2025 Hyundai Venue2024 Hyundai Elantra2024 Hyundai Elantra N2024 Hyundai Ioniq 52024 Hyundai Ioniq 62024 Hyundai Nexo2024 Hyundai Palisade2024 Hyundai Tucson2024 Hyundai Venue2023 Hyundai Elantra2023 Hyundai Elantra N2023 Hyundai Ioniq 52023 Hyundai Ioniq 6+ 76 more
  Associated Documents

  • DownloadMC-11015936-0001.pdf↗
• May 10, 2024•Document ID: 11000788

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-01-009H-1

  Date Added:

  June 4, 2024

  Manufacturer:

  HYUNDAI

  Summary

  A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (called the “Class Vehicles”) contain design flaws, including the failure to manufacture the Class Vehicles with an anti-theft device called an engine immobilizer, that make them susceptible to theft and damage. Class Vehicles manufactured without an engine immobilizer have traditional “turn-key-to-start” ignition systems.

  Associated Products (98)

  2022 Hyundai Accent2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2022 Hyundai Tucson2021 Hyundai Accent2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Tucson2021 Hyundai Veloster2021 Hyundai Venue2020 Hyundai Accent2020 Hyundai Elantra2020 Hyundai Elantra GT2020 Hyundai Kona2020 Hyundai Palisade2020 Hyundai Santa Fe2020 Hyundai Tucson+ 78 more
  Associated Documents

  • DownloadMC-11000788-0001.pdf↗
• May 9, 2024•Document ID: 11000314

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-01-009H-1

  Date Added:

  May 23, 2024

  Manufacturer:

  HYUNDAI

  Summary

  A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (called the “Class Vehicles”) contain design flaws, including the failure to manufacture the Class Vehicles with an anti-theft device called an engine immobilizer, that make them susceptible to theft and damage. Class Vehicles manufactured without an engine immobilizer have traditional “turn-key-to-start” ignition systems.

  Associated Products (97)

  2022 Hyundai Accent2022 Hyundai Elantra2022 Hyundai Kona2022 Hyundai Santa Fe2021 Hyundai Accent2021 Hyundai Elantra2021 Hyundai Kona2021 Hyundai Palisade2021 Hyundai Santa Fe2021 Hyundai Tucson2021 Hyundai Veloster2021 Hyundai Venue2020 Hyundai Accent2020 Hyundai Elantra2020 Hyundai Elantra GT2020 Hyundai Kona2020 Hyundai Palisade2020 Hyundai Santa Fe2020 Hyundai Tucson2020 Hyundai Veloster+ 77 more
  Associated Documents

  • DownloadMC-11000314-0001.pdf↗
• February 14, 2024•Document ID: 10251285

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER; VISIBILITY

  Mfr Comm. #:

  24-BD-001H

  Date Added:

  March 5, 2024

  Manufacturer:

  HYUNDAI

  Summary

  This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.

  Associated Products (266)

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  Associated Documents

  • DownloadMC-10251285-0001.pdf↗
• February 12, 2024•Document ID: 10251282

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

  Mfr Comm. #:

  24-01-009H

  Date Added:

  March 5, 2024

  Manufacturer:

  HYUNDAI

  Summary

  Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), and anti-theft ignition cylinder protector campaign (Campaign 9A5) in response to an increase in thefts of certain 2011-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. Campaign 9A8 has also been released to provide a revised software update to certain 2018 model year Elantra vehicles. For certain vehicles that cannot be upgraded with the software under Campaign 993, Hyundai is offering customers an anti-theft ignition cylinder protector to be installed on their vehicle. This Dealer Best Practices Guide provides information to assist dealership personnel with customer questions relating to the immobilizer software upgrade, window decals and steering wheel lock anti-theft solutions available from HMA through Hyundai dealerships.

  Associated Products (98)

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  Associated Documents

  • DownloadMC-10251282-0001.pdf↗