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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.

By type

By component

By trouble code

Bulletins, newest first
91003902024-07-18. Service bulletin. POWER TRAIN. D Clutch Repair Kit TSB 21-039-24 REV A - D-Clutch repair kit missing Carrier Output Shaft Seals It has been identified the Carrier Output Shaft is missing 2 seals for some of the kits delivered to dealers. These seals are not available individually. MOPAR is working to get the parts. Do not rebuild the transmission without these seals otherwise the vehicle will not have reverse. Please refer to STAR Online Publication S2421000001 for instructions for inspecting if the seals are present on the Output Shaft Carrier Shaft. If seals are missing, please return the D-Clutch Kit as defective and order another kit. Transmission replacement is not recommended as this issue should be solved with replacement kits.
9100390 Rev12024-07-18. Service bulletin. POWER TRAIN. D Clutch Repair Kit TSB 21-039-24 REV A - D-Clutch repair kit missing Carrier Output Shaft Seals It has been identified the Carrier Output Shaft is missing 2 seals for some of the kits delivered to dealers. These seals are not available individually. MOPAR is working to get the parts. Do not rebuild the transmission without these seals otherwise the vehicle will not have reverse. Please refer to STAR Online Publication S2421000001 for instructions for inspecting if the seals are present on the Output Shaft Carrier Shaft. If seals are missing, please return the D-Clutch Kit as defective and order another kit. Transmission replacement is not recommended as this issue should be solved with replacement kits
08-162-242024-07-17. Service bulletin. POWER TRAIN. "Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● C140E-00 - Transfer Case Motor Blocked. This bulletin involves reprogramming the DTCM with the latest available software and possibly replacing the transfer case motor actuator."
08-160-242024-07-17. Service bulletin. UNKNOWN OR OTHER. "Management Procedure for Customer Issues in Connected Services Customers may experience the following: ● Various Connected Services issues. The purpose of this informative Technical Service Bulletin (TSB) is to support the Network on the following topics: ● Discern the different kinds of connected service issues (onboard / offboard). ● Support the customer in his journey to open a request via Customer Care. ● Address on the correct actions to properly manage a customer complaining about the received assistance."
S24230000332024-07-08. Service bulletin. STRUCTURE:BODY. Water Leak From Front Door. Water On Front Floor.
S1408000384 REV.F2024-07-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE. "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 "
990462024-07-02. Other. UNKNOWN OR OTHER. Saftey Recall 19A 2021 Model Year only
08-149-242024-07-02. Service bulletin. ELECTRICAL SYSTEM. "12V Battery Low Level Charge Notification On Customer’s Mobile Application Vehicle's 12V battery Low Level Charge notification on customer’s mobile application."
940062024-06-27. Other. VISIBILITY/WIPER. WIPERUNIT - WINDSHIELD WIPER, BLADE - FRONT WIPER
989332024-06-26. Other. ENGINE. PUMP – WATER & CONNECTOR - OIL COOLER TUBE
989312024-06-26. Other. ENGINE. PUMP – WATER & CONNECTOR - OIL COOLER TUBE
940062024-06-26. Other. STRUCTURE:BODY. WIPERUNIT - WINDSHIELD WIPER, BLADE - FRONT WIPER
988612024-06-25. Other. STRUCTURE:BODY. WIPERUNIT - WINDSHIELD WIPER, BLADE - FRONT WIPER.
91003602024-06-24. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH Power Window Before replacing the window switch, please follow these steps: 1.- Review the master window Switch for any physical issue (Button stuck, broke). If not, physical issue is found move to next step 2.- Make sure all the switches harness are properly connected, disconnect the switch and reconnect it, and reverify the issue. If after performing these steps the switch remains faulty, please replace the switch
21-039-24 REV. A2024-06-18. Service bulletin. POWER TRAIN. "D Clutch Repair Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. This bulletin involves replacing the D clutch."
S2307000002 REV.B2024-06-11. Service bulletin. ENGINE. Suspected Engine Coolant Leak
S1723000037 REV.A2024-06-11. Service bulletin. STRUCTURE:BODY. Freedom Panel Underside Rough And Or White Coating Flaking
21-040-242024-06-07. Service bulletin. POWER TRAIN. "Flash: Transmission Control Module (TCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find the following Diagnostic Trouble Code (DTC): ● P0701 - Transmission Control System Range/Performance. This bulletin involves reprogramming the TCM with the latest available software."
21-039-242024-06-07. Service bulletin. POWER TRAIN. "D Clutch Repair Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P1DA8-00 - Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92-00 - Incorrect Gear Ratio - Clutch 4 Defective. This bulletin involves replacing the D clutch."
21-024-24 REV. A2024-06-07. Service bulletin. POWER TRAIN. "Flash: Transmission Control Module (TCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** ● P0810 - Clutch Position Control Error. Customers may also experience one or more of the following: ● K0 Adaptation routine runs when vehicle stationary and in EV Mode. ● Vehicle loses propulsion capability. ● Service transmission warning light on. NOTE: A key cycle will recover these symptoms. **The following software enhancement is available: ● Modified the P0810 - Clutch Position Control Error set parameters.** **This bulletin involves reprogramming the TCM with the latest available software.** NOTE: **Please be sure that the 04B recall is completed prior to performing this TSB. This TCM software update is covered by the 04B recall if still incomplete.**"
18-022-24 REV. A2024-06-07. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Enhancements **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● U0402-00 - Implausible Data Received From TCM. ● U145D - Implausible Data Received From TCM On D-PT. Customers may experience one or more of the following: ● Noticeable oil life degradation when fuel and oil refresh mode active. ● Vehicle may not be able to enter electric mode driving while Fuel Oil Refresh Mode (FORM) is active. ● FORM staying on too long. Other software enhancement included with this update: ● On Board Fuel Consumption Monitoring Updates (China Only). This bulletin involves reprogramming the PCM with the latest software available. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this PCM update. ● Battery Pack Control Module (BPCM). ● Transmission Control Module (TCM). ● Integrated Dual Charging Control Module (IDCM). ● Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM)."
S2307000002 REV.A2024-06-07. Service bulletin. ENGINE. Suspected Engine Coolant Leak
ZD8 Combo Rev32024-06-05. Service campaign. ENGINE. Customer Satisfaction Notification ZD8 Coolant Leak
S24230000292024-06-05. Service bulletin. STRUCTURE:BODY. Water Leaking Near Front Bulkhead Or Cowl Area On Driver’s Side.
S2208000063 REV.A2024-06-04. Service bulletin. STEERING. "Loss Of Power Steering Assist. U0131 Lost Communication With Electro Hydraulic Power Steering Control Module (EHPS)."

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