2021 Jeep Wrangler 4XE Technical Service Bulletins

151 technical service bulletins (TSBs) are on record for the 2021 Jeep Wrangler 4XE. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11018637May 20, 2025Body and structure. Backlite Heated Liftgate Glass Assembly: For rear window defrost inoperative concerns where heated glass electrical tab has become detached, it is not necessary to replace the glass assembly. For loose or detached electrical tab, refer to TSB 23-007-25 for repair procedures on reattaching a loose tab. For burned or discolored gridlines on hard tops, DO NOT change the complete Flipper glass assembly. This…
• 11018447May 16, 2025Electrical system. "Washer Light On And Will Not Turn Off After Adding Washer Solvent."
• 11017092Apr 17, 2025Electrical system. AM Radio Static, With No Active or Stored Radio Antenna Diagnostic Trouble Codes (DTC).
• 11017070Apr 14, 2025Electrical system. "Telematics Box Module Verify Z part number availability. Order a Z part number for all Exchange Orders: warranty, Mopar, customer pay and service contract. Order regular part number for New unsold units only."
• 11017000Apr 12, 2025Electrical system. "High Voltage Wiring Repair 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): ● B273C-00 - Digital Crash Input. ● U0287-00 - Lost Communication With Transmission Fluid Pump Module 1. Customers may also experience one or more of the following: ● Vehicle shakes during a cold start. ● Noise is heard…
• 11016951Apr 11, 2025Other or unknown. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
• 11016939Apr 9, 2025Other or unknown. Warranty Newsletter – Volume 11, Issue 4
• 11015883Mar 22, 2025Electrical system. "High Voltage Wiring Repair 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): ● B273C-00 - Digital Crash Input. ● U0287-00 - Lost Communication With Transmission Fluid Pump Module 1. Customers may also experience one or more of the following: ● Vehicle shakes during a cold start. ● Noise is heard…
• 11015532Mar 7, 2025Electrical system. "Flash: Power Inverter Module(PIM) Flash Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find one or more of the following Diagnostic Trouble Code (DTC) has been set: ● P0C19-00 - Drive Motor A Torque Delivered Performance. ● P1B03-00 - Resolver Signal / MCPA Rationality.
• 11012827Jan 11, 2025Transmission and drivetrain. "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. ●…
• 11011925Dec 14, 2024Electrical system. "Flash: Battery Pack Control Module (BPCM) Enhancements 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: ● **P0DAB - Hybrid/EV Cell Balancing Performance.** ● P0AA4 - Hybrid/EV Battery Negative Contactor 'A' Circuit Stuck Closed. ● P0AA1 - Hybrid Battery Positive…
• 11001291May 23, 2024Transmission and drivetrain. "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. ●…
• 10251783Jan 10, 2024Electrical system. 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
• 10244356Sep 20, 2023Suspension. 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.
• 10248509Sep 15, 2023Electrical system. Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
• 10244348Sep 15, 2023Electrical system. Connector kit Before ordering this connector repair kit 68018957A$, 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.
• 10243209Aug 30, 2023Equipment. FCA Caribbean Warranty Bulletin ID-23-20 "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC
• 10243208Aug 30, 2023Equipment. Warranty Bulletin D-16-03 - "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC (Rev. B)
• 10243271Aug 24, 2023Visibility (wipers, defrost, mirrors). A/C Diagnostic LOP Change
• 10242717Jul 27, 2023Equipment. Lubrication and Maintenance Fluids If MOPAR fluids and chemicals are not readily available, please review Service Library for specifications so a suitable alternative can be used
• 10241146Jun 30, 2023Visibility (wipers, defrost, mirrors). A/C Diagnostic LOP Change (Except Alfa Romeo Vehicles)
• 10239957May 18, 2023Engine cooling. Water Quality When Mixed With Engine Coolant
• 10236969Apr 25, 2023Visibility (wipers, defrost, mirrors). Mirror
• 10236933Apr 15, 2023Engine cooling, Equipment. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
• 10234420Feb 14, 2023Electrical system. 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
• 10230405Nov 10, 2022Electrical system. Telematic box module 2
• 10230407Nov 4, 2022Exterior lighting. Base Headlamp Bright, Base Headlamp Black
• 10229572Aug 19, 2022Body and structure. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10225424Aug 19, 2022Body and structure. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10225287Aug 19, 2022Body and structure, Other or unknown. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10227983Apr 2, 2022Engine cooling, Equipment. If a Mopar oil filter is not available, use a filter that meets or exceeds USCAR36 specification and is compatible with semi and full synthetic oils.
• 10218507Aug 18, 2021Equipment. Media Device Connection Guidelines For Bluetooth, Apple CarPlay, Android Auto Or USB To The Radio Head Unit
• 10230236Jul 31, 2021Transmission and drivetrain. Media Hub And Or Wireless Charging Pad Is Inoperative
• 10221650Jul 31, 2021Electrical system. Media Hub And Or Wireless Charging Pad Is Inoperative
• 10230183Jul 9, 2021Electrical system. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
• 10221597Jul 9, 2021Electrical system. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
• 10230180Jul 6, 2021Engine cooling. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
• 10221594Jul 6, 2021Engine cooling. Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.
• 10212445Jun 30, 2021Suspension. Hub and bearing - wheel
• 10212444Jun 29, 2021Equipment, Body and structure. Base - floor console
• 10212443Jun 24, 2021Latches, locks and linkages. Latch - front door
• 10212446Jun 22, 2021Engine, Engine cooling. Camshaft - intake
• 10212436Jun 21, 2021Engine cooling. Muffler and tailpipe ? Exhaust
• 10212438Jun 17, 2021Visibility (wipers, defrost, mirrors). GLASS - SUNROOF
• 10212437Jun 14, 2021Engine cooling. Tube - turbo water feed
• 10221153Apr 17, 2021Equipment, Electrical system. Battery Tester Warranty Code Procedures, Midtronics Charger Update Process
• 10221152Apr 16, 2021Equipment, Electrical system. Battery Tester Warranty Code Procedures, Medtronic Update Process
• 10221150Apr 16, 2021Transmission and drivetrain. Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders
• 10221097Apr 7, 2021Transmission and drivetrain. Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage.
• 10220891Mar 16, 2021Visibility (wipers, defrost, mirrors), Equipment. A/C does not cool and vehicle is low on Freon charge but no leak is found with sniffer or black light anywhere in the system

← All problems reported for the 2021 Jeep Wrangler 4XE