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Service bulletins for the 2021 Jeep Wrangler

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1062 on file from NHTSA, as of 2026-10-19.

Warranty extensions
1140452026-08-19. STRUCTURE:BODY. ID-25-11 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1140442026-08-19. STRUCTURE:BODY. D-25-15 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
16C Combo Rev32026-08-13. ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non-compliant to the OBD II regulation.
16C Combo REV22026-03-25. ELECTRICAL SYSTEM. Emissions Recall 16C - Check Engine/Malfunction Indicator Lamp - Dealer Notification (Revision 2)
1107712026-03-13. ELECTRICAL SYSTEM. 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)
1107702026-03-13. ELECTRICAL SYSTEM. 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)
1104092026-03-05. ELECTRICAL SYSTEM. ID-26-06 (XU1) High Voltage Battery Pack - Select 2021 - 2025 Jeep Wrangler (JL) and 2022 - 2026 Jeep Grand Cherokee/ Grand Cherokee (WL)
1103912026-03-05. ELECTRICAL SYSTEM. D-26-06 (XU1) High Voltage Battery Pack - Select 2021 - 2025 Jeep Wrangler (JL) and 2022 - 2026 Jeep Grand Cherokee/ Grand Cherokee (WL)
1104312026-03-05. STRUCTURE:BODY. FCA Caribbean Warranty Newsletter – Volume 12, Issue 2
1104292026-03-05. STRUCTURE:BODY. Warranty Newsletter – Volume 12, Issue 2
1104692026-03-05. STRUCTURE:BODY. ID-25-11 Rev. B Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1104622026-03-05. STRUCTURE:BODY. D-25-15 Rev. B Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
16C Combo REV12026-02-19. ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp Reference: 16C
1086572025-11-26. UNKNOWN OR OTHER. ID-25-11 Rev. A Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1086552025-11-26. UNKNOWN OR OTHER. D-25-15 Rev. A Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1055912025-06-17. UNKNOWN OR OTHER. FCA Caribbean Warranty Newsletter – Volume 11, Issue 6
1045582025-04-11. UNKNOWN OR OTHER. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
1045572025-04-10. UNKNOWN OR OTHER. Warranty Newsletter – Volume 11, Issue 4
1023652024-12-19. UNKNOWN OR OTHER. Warranty Newsletter – Volume 10, Issue 11
1023152024-12-17. UNKNOWN OR OTHER. Warranty Bulletin ID-23-03 Rev. H 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1023002024-12-17. UNKNOWN OR OTHER. Warranty Bulletin D-23-04 Rev. G 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1011372024-10-18. ENGINE. Warranty Bulletin D-23-04 Rev. F 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1008762024-10-08. STRUCTURE:BODY; ENGINE. FCA Caribbean Warranty Bulletin ID-23-03 Rev. F 2018 - 2024 (Current) Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
1008752024-10-03. ENGINE; STRUCTURE:BODY. Warranty Bulletin D-23--04 2018 - 2024 (Current) Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
998852024-08-12. STRUCTURE:BODY; UNKNOWN OR OTHER. WARRANTY BULLETIN D-23-04 2018 - 2024 (Current) Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification (Rev. D)

A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.

By type

By component

By trouble code

Bulletins, newest first
S26080000382026-10-16. Service bulletin. ELECTRICAL SYSTEM. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle
08-366-262026-10-16. Service bulletin. ELECTRICAL SYSTEM. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C147B-92 - Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster (IPC). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software.
S26080000382026-10-16. Service bulletin. ELECTRICAL SYSTEM. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle
08-366-262026-10-16. Service bulletin. ELECTRICAL SYSTEM. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C147B-92 - Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster (IPC). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software.
S26210000042026-10-07. Service bulletin. POWER TRAIN. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines (850RE Transmission Only)
1147462026-09-30. Service bulletin. STEERING. SOCKET - DRAG LINK INNER
1147452026-09-30. Service bulletin. STEERING. SOCKET - DRAG LINK INNER
91009002026-09-17. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
9100363 Rev 32026-09-03. Service bulletin. ENGINE. Turbocharger Kit Please note that many turbo components are serviceable separately and full turbo replacement may not be required. If the turbo is being inspected for: Noise/Rattle: Inspect heat shield fasteners for looseness and check the wastegate actuator/linkage for binding. The actuator kit is serviced separately. Oil Leak: Inspect the turbo oil feed O-ring area for leaks. O-ring is serviced separately.
1140452026-08-19. Warranty extension. STRUCTURE:BODY. ID-25-11 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
1140442026-08-19. Warranty extension. STRUCTURE:BODY. D-25-15 Rev. C Aluminum Filiform Corrosion Warranty Policy and Vehicle Digital Imaging (VDI) Pre-Approval Process - ALL Vehicles
16C Combo Rev32026-08-13. Warranty extension. ELECTRICAL SYSTEM. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non-compliant to the OBD II regulation.
1132712026-07-18. Service bulletin. ENGINE. CORE – HEATER
1132702026-07-18. Service bulletin. ENGINE. CORE – HEATER
1126392026-07-08. Service bulletin. ENGINE. THROTTLE BODY – NONE
1126402026-07-08. Service bulletin. ENGINE. THROTTLE BODY – NONE
08-260-262026-07-08. Service bulletin. ELECTRICAL SYSTEM. Flash: Integrated Dual Charging Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● **B22A9-87 - ECU Internal Performance - Missing Message. ● P0D21-00 - Battery Charger "A" Output Voltage Too Low.** ● B22A9-16 - ECU Internal Performance-Circuit Voltage Below Threshold. ● B22A9-17 - ECU Internal Performance-Circuit Voltage Above Threshold. ● B22A9-19 - ECU Internal Performance - Overcurrent. ● B22A9-64 - ECU Internal Performance-Signal Plausibility Failure. ● P0D27-00 - Battery Charger 1 Input Voltage Too Low. Customers may also comment on one or more of the following: ● Unable to charge the vehicle with level 2 charger. ● Vehicle would not charge and the charge station circuit breaker in the house / receptacle trips when its plugged into the vehicle. **This bulletin involves reprogramming the IDCM with the latest software available.**
1128622026-07-02. Service bulletin. ELECTRICAL SYSTEM. MOTOR - BLOWER WITH WHEEL
1128632026-07-02. Service bulletin. ELECTRICAL SYSTEM. MOTOR - BLOWER WITH WHEEL
S26090000092026-07-02. Service bulletin. ENGINE. Check Engine Light (CEL) Illuminated with Diagnostic Trouble Code (DTC) P0106 Manifold Absolute Pressure Sensor Performance Setting In The Powertrain Control Module (PCM)
1128562026-07-02. Service bulletin. UNKNOWN OR OTHER. HEATER - ELECTRIC COOLANT
1128422026-07-02. Service bulletin. ENGINE. BOLT - HEX FLANGE HEAD
1128572026-07-02. Service bulletin. UNKNOWN OR OTHER. HEATER - ELECTRIC COOLANT
21-041-26 REV. A2026-07-02. Service bulletin. POWER TRAIN. Transmission Auxiliary Oil Pump Failure Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set **one or more the following Diagnostic Troubles Code (DTCs): ● U0287-00 - Lost Communication With Transmission Fluid Pump Module 1.** ● P0B0D-00 - Electric/Auxiliary Transmission Fluid Pump Motor Control Module. Customers may also comment on the following: ● Vehicle is in limp mode. This bulletin involves replacing the transmission oil pump.
91008352026-06-18. Service bulletin. ELECTRICAL SYSTEM. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.