2021 Jeep Wrangler Technical Service Bulletins

1,039 technical service bulletins (TSBs) are on record for the 2021 Jeep Wrangler. 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.

• 11005356Jul 24, 2024Transmission and drivetrain. Carrier – planetary & shaft kit - output
• 11005320Jul 24, 2024Body and structure. "Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates. NOTE: Verify current warranty policy to determine if digital imaging pre-authorization is required or pre-approval is required from the Regional Office; depending on market.
• 11004939Jul 17, 2024Transmission and drivetrain. 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.
• 11004944Jul 16, 2024Transmission and drivetrain. No Reverse And/Or Forward Gear After D-Clutch Repair.
• 11004940Jul 15, 2024Transmission and drivetrain. 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.
• 11004839Jul 13, 2024Other or unknown. "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.
• 11004888Jul 11, 2024Transmission and drivetrain. "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."
• 11003796Jul 1, 2024Body and structure. Water Leak From Front Door. Water On Front Floor.
• 11002796Jun 27, 2024Electrical 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."
• 11002810Jun 26, 2024Other or unknown. Saftey Recall 19A 2021 Model Year only
• 11002828Jun 25, 2024Engine, Electrical 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 "
• 11002351Jun 25, 2024Engine. Pump – water & connector - oil cooler tube
• 11002350Jun 25, 2024Engine. Pump – water & connector - oil cooler tube
• 11002019Jun 21, 2024Electrical system, Body and structure. 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…
• 11002424Jun 20, 2024Visibility (wipers, defrost, mirrors). Wiperunit - windshield wiper, blade - front wiper
• 11002315Jun 20, 2024Body and structure. Wiperunit - windshield wiper, blade - front wiper
• 11002314Jun 20, 2024Body and structure. Wiperunit - windshield wiper, blade - front wiper.
• 11001771Jun 15, 2024Transmission and drivetrain. "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…
• 11001459Jun 7, 2024Engine. Suspected Engine Coolant Leak
• 11001383Jun 6, 2024Body and structure. Freedom Panel Underside Rough And Or White Coating Flaking
• 11001089May 30, 2024Engine. Customer Satisfaction Notification ZD8 Coolant Leak
• 11001317May 29, 2024Transmission and drivetrain. "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."
• 11001026May 29, 2024Body and structure. Water Leaking Near Front Bulkhead Or Cowl Area On Driver’s Side.
• 11001310May 25, 2024Transmission and drivetrain. "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…
• 11000824May 21, 2024Engine. "GENERATOR Engine Prior to alternator/generator removal: 1. Inspect & check all electrical connections to the alternator a. 2-way connector containing field control circuit & alternator sense voltage circuit. b. Unplug & plug-in the 2-way connector for field & sense circuit. Verify the connection is tight & check for any bent pins in alternator connector or damage to female terminals in connector. c.
• 11001250May 16, 2024Transmission and drivetrain. "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…
• 11000801May 15, 2024Transmission and drivetrain. "Axle Assembly Do not replace the Axle for Axle Locker Sensor failure. The parts kit (SENSOR KIT, Axle: 68544629A$) must be used to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). Internal axle components are serviceable. Complete axle assemblies should not be replaced unless necessary due to damaged housing. Over repairs may be subject to chargeback."
• 11000795May 7, 2024Transmission and drivetrain. "VALVE BODY & CONTROL UNIT Transmission Ensure clutch pressure check has been completed and documented prior to valve body replacement."
• 11000168May 6, 2024Electrical system. HEADLAMP
• 11001198May 5, 2024Engine. Suspected Engine Coolant Leak
• 11000862May 3, 2024Steering. "Loss Of Power Steering Assist. U0131 Lost Communication With Electro Hydraulic Power Steering Control Module (EHPS)."
• 11000195May 2, 2024Engine. "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…
• 10251801Jan 31, 2024Electrical system. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
• 10251875Jan 30, 2024Electrical system. Radio Over The Air Update from QR39.82F to QR40.12 Software Version Customer may experience one or more of the following: ? 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…
• 10251795Jan 26, 2024Equipment. Radio Black Screen, Freezing, Reset, Cutting Out Or Inoperative Intermittently
• 10251870Jan 25, 2024Electrical system. Radio Over The Air Update from QR39.5 to QR40.11 Software Version Customer may experience one or more of the following: ? 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…
• 10251867Jan 24, 2024Electrical system. Radio Over The Air Updating to QR40.12 Software Version Customers may experience one or more of the following: ? 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…
• 10251863Jan 23, 2024Exterior lighting, Back-over prevention (rear camera). Front and Rear Axle Sensor Kit **Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? C1451-11 - Service Axle Locker System** Customers may also comment on a Service Axle Locker message displayed in the Electronic Vehicle Information Center (EVIC) for this condition.
• 10251767Jan 18, 2024Equipment. Thermostat Assy For 2022-2024MY 3.6L Pentastar Upgrade with P0128 failure code. PRIOR TO PERFORMING ANY THERMOSTAT REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2309000014
• 10251854Jan 17, 2024Exterior lighting. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses.
• 10251848Jan 17, 2024Equipment. Navigation (NAV) Reboot When MOTA Fails The customer may describe one of more of the following: ? Radio navigation continues to reboot after a Map Update (MOTA). ? Navigation regularly cuts out and back on again. ? Radio switches to navigation without customer's input. This bulletin involves updating the Navigation maps via USB.
• 10251817Jan 17, 2024Electrical system. Revised Customer Satisfaction Notification Y40 ? Control Module Software Updates
• 10251786Jan 17, 2024Tires. Tire Pressure Warning Lamp is on Steady, or Flashing
• 10251845Jan 13, 2024Electrical system, Equipment. Floor Console USB Inoperative Customers may comment on the following: ? Customer states the Apple Carplay/Android Auto? does not work or is intermittently working when their device is plugged into the center console bin USB port. This replacing the center console USB cable.
• 10251816Jan 12, 2024Electrical system. Customer Satisfaction Notification Y40 Control Module Software Updates
• 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
• 10248902Nov 30, 2023Fuel system. Vehicle in an Accident, Fuel Shut Off, Vehicle Does not Start
• 10248900Nov 30, 2023Electrical system. Rear Park Assist Warning Chime When Nothing is Behind the Vehicle
• 10248941Nov 21, 2023Other or unknown, Equipment, Electrical system. Radio Over The Air Update to Q339.3 to QR39.62 Software Version Customers may experience one or more of the following: ? 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…
• 10248940Nov 21, 2023Exterior lighting. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Update 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: ? P0607-00 - ECU Internal Performance. ? P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. This bulletin involves updating the BPCM…

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