Jeep Wrangler Service Bulletins (2021)

1,062 manufacturer communications on file.

• March 17, 2026•Document ID: 11030262

  Warranty Program/Extension
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  16C Combo REV2

  Date Added:

  March 25, 2026

  Manufacturer:

  JEEP

  Summary

  Emissions Recall 16C - Check Engine/Malfunction Indicator Lamp - Dealer Notification (Revision 2)

  Associated Products (8)

  2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11030262-0001.pdf↗
• March 9, 2026•Document ID: 11030138

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  S2621000003 REV.A

  Date Added:

  March 18, 2026

  Manufacturer:

  RAM

  Summary

  The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.

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  Associated Documents

  • DownloadMC-11030138-0001.pdf↗
• March 5, 2026•Document ID: 11030033

  Warranty Program/Extension
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  110770

  Date Added:

  March 13, 2026

  Manufacturer:

  JEEP

  Summary

  D-26-06 Rev. A (XU1) High Voltage Battery Pack - Select 2021-2025 Jeep Wrangler (JL) and 2022-2026 Jeep Grand Cherokee/ Grand Cherokee (WL)

  Associated Products (10)

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  Associated Documents

  • DownloadMC-11030033-0001.pdf↗
• March 5, 2026•Document ID: 11030034

  Warranty Program/Extension
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  110771

  Date Added:

  March 13, 2026

  Manufacturer:

  JEEP

  Summary

  ID-26-06 Rev. A (XU1) High Voltage Battery Pack - Select 2021-2025 Jeep Wrangler (JL) and 2022-2026 Jeep Grand Cherokee/ Grand Cherokee (WL)

  Associated Products (10)

  2026 Jeep Grand Cherokee2025 Jeep Grand Cherokee2025 Jeep Wrangler2024 Jeep Grand Cherokee2024 Jeep Wrangler2023 Jeep Grand Cherokee2023 Jeep Wrangler2022 Jeep Grand Cherokee2022 Jeep Wrangler2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-11030034-0001.pdf↗
• March 5, 2026•Document ID: 11030042

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2608000010

  Date Added:

  March 13, 2026

  Manufacturer:

  JEEP

  Summary

  Active Diagnostic Trouble Code (DTC) B1A10-00, B1A11-00, B1A12- 00, B1A13-00-, B1A14-00, B1A15-00, B1A16-00, and B1A17-00 in The Radio Frequency Hub (RFH)

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  Associated Documents

  • DownloadMC-11030042-0001.pdf↗
• March 4, 2026•Document ID: 11030035

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S1408000384 REV.J

  Date Added:

  March 13, 2026

  Manufacturer:

  RAM

  Summary

  Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

  Associated Products (181)

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  Associated Documents

  • DownloadMC-11030035-0001.pdf↗
• February 25, 2026•Document ID: 11029836

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  110399

  Date Added:

  March 6, 2026

  Manufacturer:

  JEEP

  Summary

  HANDLE - INSIDE RELEASE

  Associated Products (16)

  2026 Jeep Gladiator2026 Jeep Wrangler2025 Jeep Gladiator2025 Jeep Wrangler2024 Jeep Gladiator2024 Jeep Wrangler2023 Jeep Gladiator2023 Jeep Wrangler2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11029836-0001.pdf↗
• February 25, 2026•Document ID: 11029770

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  S2621000003

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV transmissions that have fault codes P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.

  Associated Products (57)

  2026 Jeep Gladiator2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer2026 Jeep Wrangler2026 Ram 15002025 Dodge Durango2025 Jeep Gladiator2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Jeep Wrangler2025 Ram 15002024 Dodge Durango2024 Jeep Gladiator2024 Jeep Grand Cherokee2024 Jeep Grand Cherokee L2024 Jeep Grand Wagoneer+ 37 more
  Associated Documents

  • DownloadMC-11029770-0001.pdf↗
• February 25, 2026•Document ID: 11029765

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  110400

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  HANDLE - INSIDE RELEASE

  Associated Products (16)

  2026 Jeep Gladiator2026 Jeep Wrangler2025 Jeep Gladiator2025 Jeep Wrangler2024 Jeep Gladiator2024 Jeep Wrangler2023 Jeep Gladiator2023 Jeep Wrangler2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11029765-0001.pdf↗
• February 21, 2026•Document ID: 11029683

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  31-001-26 REV.A

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  Door Hem Aluminum Body Panel Corrosion Repair Customers may experience the following: SYMPTOM: ● Filifom corrosion at the hem area of the door. This bulletin involves removing corrosion and refinishing the hem area on the vehicle door.

  Associated Products (16)

  2026 Jeep Gladiator2026 Jeep Wrangler2025 Jeep Gladiator2025 Jeep Wrangler2024 Jeep Gladiator2024 Jeep Wrangler2023 Jeep Gladiator2023 Jeep Wrangler2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11029683-0001.pdf↗
• February 19, 2026•Document ID: 11029691

  Warranty Program/Extension
  STRUCTURE:BODY

  Mfr Comm. #:

  110469

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  ID-25-11 Rev. B Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles

  Associated Products (16)

  2026 Jeep Gladiator2026 Jeep Wrangler2025 Jeep Gladiator2025 Jeep Wrangler2024 Jeep Gladiator2024 Jeep Wrangler2023 Jeep Gladiator2023 Jeep Wrangler2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11029691-0001.pdf↗
• February 19, 2026•Document ID: 11029690

  Warranty Program/Extension
  STRUCTURE:BODY

  Mfr Comm. #:

  110462

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  D-25-15 Rev. B Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles

  Associated Products (16)

  2026 Jeep Gladiator2026 Jeep Wrangler2025 Jeep Gladiator2025 Jeep Wrangler2024 Jeep Gladiator2024 Jeep Wrangler2023 Jeep Gladiator2023 Jeep Wrangler2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11029690-0001.pdf↗
• February 18, 2026•Document ID: 11029667

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-072-26

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  High Voltage Battery Pack Replacement XU1 Warranty Extension Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0DAB-00 - Hybrid/EV Cell Balancing Performance. ● P0BBE-00 - Hybrid Battery Pack Voltage Variation. ● P1C5E-00 - Battery State Of Health Failed. ● P0B24-00 - Hybrid/EV Battery "A" Voltage Unstable. ● P0B28-00 - Hybrid/EV Battery "B" Voltage Unstable. NOTE: ● Any warranty qualifying issues outside of these specific DTCs will continue to be covered per the HV battery standard warranty coverage. ● Battery packs may contain cells with separator damage. Customers may comment on the following: ● “Service Charging System” message displayed in the Instrument Panel Cluster (IPC) and charging is inhibited. This bulletin involves replacing the high voltage battery pack.

  Associated Products (10)

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  Associated Documents

  • DownloadMC-11029667-0001.pdf↗
• February 18, 2026•Document ID: 11029694

  Warranty Program/Extension
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  110391

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  D-26-06 (XU1) High Voltage Battery Pack - Select 2021 - 2025 Jeep Wrangler (JL) and 2022 - 2026 Jeep Grand Cherokee/ Grand Cherokee (WL)

  Associated Products (10)

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  Associated Documents

  • DownloadMC-11029694-0001.pdf↗
• February 18, 2026•Document ID: 11029695

  Warranty Program/Extension
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  110409

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  ID-26-06 (XU1) High Voltage Battery Pack - Select 2021 - 2025 Jeep Wrangler (JL) and 2022 - 2026 Jeep Grand Cherokee/ Grand Cherokee (WL)

  Associated Products (10)

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  Associated Documents

  • DownloadMC-11029695-0001.pdf↗
• February 18, 2026•Document ID: 11029693

  Warranty Program/Extension
  STRUCTURE:BODY

  Mfr Comm. #:

  110431

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  FCA Caribbean Warranty Newsletter – Volume 12, Issue 2

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  Associated Documents

  • DownloadMC-11029693-0001.pdf↗
• February 18, 2026•Document ID: 11029692

  Warranty Program/Extension
  STRUCTURE:BODY

  Mfr Comm. #:

  110429

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  Warranty Newsletter – Volume 12, Issue 2

  Associated Products (16)

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  Associated Documents

  • DownloadMC-11029692-0001.pdf↗
• February 17, 2026•Document ID: 11029684

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  31-001-26

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  Door Hem Aluminum Body Panel Corrosion Repair Customers may experience the following: SYMPTOM: ● Filifom corrosion at the hem area of the door. This bulletin involves removing corrosion and refinishing the hem area on the vehicle door.

  Associated Products (16)

  2026 Jeep Gladiator2026 Jeep Wrangler2025 Jeep Gladiator2025 Jeep Wrangler2024 Jeep Gladiator2024 Jeep Wrangler2023 Jeep Gladiator2023 Jeep Wrangler2022 Jeep Gladiator2022 Jeep Wrangler2021 Jeep Gladiator2021 Jeep Wrangler2020 Jeep Gladiator2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-11029684-0001.pdf↗
• February 17, 2026•Document ID: 11029673

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN; ENGINE

  Mfr Comm. #:

  18-005-26 REV.A

  Date Added:

  March 5, 2026

  Manufacturer:

  JEEP

  Summary

  Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P08A6 - Gear Lever Position Sensor System – Multiple Sensor Correlation. (Manual Transmission and NA Only) ● P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation. (NA Only) ● P0300 - Multiple Cylinder Misfire. Customers may also comment on one or more of the following: ● "Service Transmission” message on in the Instrument Panel Cluster (IPC) due to clutch slip detection. (Manual Transmission and NA Only) NOTE: Customers might experience wheel spin or slippage and the PCM could interpreted the wheel spin or slippage as slipping the clutch too much and to avoid clutch damage, the customer may see the message in the IPC. ● Vehicle is in limp home mode.(NA Only) ● Spark knock/detonation sound from the engine at idle. Other software enhancements included: ● Engine oil pump in high pressure mode with cold engine oil to improve valvetrain component reliability. (NA Only) This bulletin involves reprogramming the PCM with the latest available software.

  Associated Products (1)

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  Associated Documents

  • DownloadMC-11029673-0001.pdf↗
• February 14, 2026•Document ID: 11028904

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S1408000384 REV.I

  Date Added:

  February 19, 2026

  Manufacturer:

  RAM

  Summary

  Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

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  Associated Documents

  • DownloadMC-11028904-0001.pdf↗