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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
S22210000032023-10-30. Service bulletin. POWER TRAIN. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
S23210000052023-10-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. Transmission Fluid Leak From Under The Vehicle.
S23230000722023-10-30. Service bulletin. VISIBILITY:GLASS, SIDE/REAR; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Soft Top Windows Do Not Sit Flush To The Top.
S23230000712023-10-30. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Front Door Window Will Not Roll Down All The Way. Window Stops Part Way Down.
S23190000072023-10-30. Service bulletin. STEERING. Squeak Noise From Dash Area When Turning The Steering Wheel.
91002292023-10-30. Service bulletin. SUSPENSION. LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
91002262023-10-30. Service bulletin. ELECTRICAL SYSTEM:WIRING. Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
91002122023-10-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2307000002. Please submit pictures of the leak area thru the DIDI process outlined in the STAR Online document. NOTE: Some coolant residue may be found at the water pump weep hole plug area which may be normal, but coolant should not be dripping from this location. If unsure about, use the Pressurized Coolant System Inspection process as found in the Dealer Connect Cooling Diagnosis and Testing Procedures.
91002092023-10-30. Service bulletin. ELECTRICAL SYSTEM:WIRING:POSITION/LIMIT SENSOR/SWITCH; ELECTRICAL SYSTEM. Switch-Mirror Before replacing this Switch, please follow the service procedures to properly diagnose it 1) Remove the switch 2) Please check the continuity on each pin of the switch based on the table found in the service Procedures. If after testing switch is still faulty, please call FCA Redacted Content. If no response after 15 minutes, proceeds with switch replacement.
24006232023-10-02. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Diagnostic LOP Change
18073232023-10-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **U115F-00 - Lost Communication With Driver Presence Detection Module.** ? P02EE - Cylinder 1 Injector Circuit Performance. ? P02EF - Cylinder 2 Injector Circuit Performance. ? P02F0 - Cylinder 3 Injector Circuit Performance. ? P02F1 - Cylinder 4 Injector Circuit Performance. The customer may also experience one or more of the following when DTC U115F-00 is triggered: ? **Disabled engine stop / start (ESS) feature. ? Service ESS light and EVIC message is displayed in the Instrument Panel Cluster (IPC).** This bulletin involves reprogramming the PCM with the latest available software.
23089232023-10-02. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. Rear Defroster Inoperative Customer may experience the following: ? Rear window is not defrosting ? The rear window glass left or right side defrost solder terminal is detached from the defrost grid. This bulletin involves replacing the Electric Backlite (EBL) wire connector repair and re-securing the electrical connector(s) to the rear window.
931202023-10-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FCA Caribbean Warranty Bulletin ID-23-20 "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC
930232023-10-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D-16-03 - "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC (Rev. B)
S22080000272023-10-02. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Cluster Message ?Electric Mode Unavailable Cabin Heating or Cooling? or ?Electric Mode Temporarily Unavailable?, Vehicle Engine Runs All -the Time Does Not Enter Electric Vehicle (EV) Mode, Diagnostic Trouble Codes (DTCs) P0E15, U1008-00,U1124-00
S23070000022023-10-02. Service bulletin. ENGINE AND ENGINE COOLING. Suspected engine coolant leak.
S238A0000422023-10-02. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Media Hub USB Connection Drops, Or Apple CarPlay and Android Auto Inoperative.
S20080001802023-10-02. Service bulletin. VISIBILITY. Rear Wipers Do Not Park Correctly After Rear Wiper Swipe Operation
S19190000042023-10-02. Service bulletin. ELECTRICAL SYSTEM; STEERING. U0131-00-LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE ?A?. Service Electric Power Steering Message On Cluster.
S20080000312023-10-02. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:PORT. Low Charging Voltage Displayed On Cluster
S21080000932023-10-02. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; UNKNOWN OR OTHER. Apple CarPlay Does Not Work Or Not Connecting
NotificationZD82023-10-02. Service bulletin. ENGINE AND ENGINE COOLING. The coolant inlet tube fasteners on about 90,811 of the above vehicles may become loose and allow a coolant weep that may propagate into a drip. Loss of coolant can cause the engine to overheat and, if not addressed, can lead to engine failure.
08181232023-09-25. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Over The Air Updating to QR40.12 Software Version ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone, when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from QR39.62 and QR39.57 to QR40.12. NOTE: National launch for this FOTA update is expected to begin August 16, 2023
08178232023-09-25. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Power Inverter Module (PIM) Replacement Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTCs have been set: ? P0A78-00 - Drive Motor A Inverter Performance. ?P0A79-00 - Drive Motor B Inverter Performance. Customer may also experience the following: ? Internal Combustion Engine (ICE) propulsion only and no EV or hybrid mode only when these DTCs are present. This bulletin involves replacing the PIM.
08168232023-09-25. Service bulletin. ELECTRICAL SYSTEM. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: ? P0A80-00 - Contactor Wear Counter Limit Reached. ? P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. Customers may also experience one or more of the following: ? Battery light on the Instrument Panel Cluster (IPC). This bulletin involves updating the BPCM with the latest available software

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