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.

• 10229470Aug 5, 2022Other or unknown, Transmission and drivetrain. Coolant leak
• 10225333Aug 5, 2022Engine cooling. Coolant leak
• 10225196Aug 5, 2022Engine cooling. Coolant leak
• 10229473Aug 4, 2022Electrical system. Front Park Sensors Not Providing Warning After a Recent Service Repair
• 10229452Aug 4, 2022Other or unknown, Body and structure. TOP KIT - SOFT
• 10225336Aug 4, 2022Electrical system. Front Park Sensors Not Providing Warning After a Recent Service Repair
• 10225199Aug 4, 2022Electrical system. Front Park Sensors Not Providing Warning After a Recent Service Repair
• 10229533Aug 3, 2022Electrical system. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: P1A21-00 - HV Battery Contactor Control Sequence Incorrect. P0B3E-00 - Hybrid/EV Battery Voltage Sense 1 Circuit High. P0607-00 - ECU Internal Performance. P1E1B-00…
• 10229439Aug 3, 2022Engine cooling. Water Pump For concern of leak at water pump, please check and re-torque water pump inlet tube fasteners as described in Service Bulletin 07-001-22 before replacing the water pump.
• 10229436Aug 3, 2022Transmission and drivetrain. Axle Assembly A parts kit (SENSOR KIT, Axle: 68544629A$) is available to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This parts kit must be used when only the Axle Locker Sensor fails. Do not replace the axle for sensor failure.
• 10225385Aug 3, 2022Electrical system. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: P1A21-00 - HV Battery Contactor Control Sequence Incorrect. P0B3E-00 - Hybrid/EV Battery Voltage Sense 1 Circuit High. P0607-00 - ECU Internal Performance. P1E1B-00…
• 10225302Aug 3, 2022Transmission and drivetrain, Equipment, Fuel system. Water Pump For concern of leak at water pump, please check and re-torque water pump inlet tube fasteners as described in Service Bulletin 07-001-22 before replacing the water pump.
• 10225299Aug 3, 2022Transmission and drivetrain, Back-over prevention (rear camera), Wheels. Axle Assembly A parts kit (SENSOR KIT, Axle: 68544629A$) is available to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This parts kit must be used when only the Axle Locker Sensor fails. Do not replace the axle for sensor failure.
• 10225248Aug 3, 2022Electrical system. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: P1A21-00 - HV Battery Contactor Control Sequence Incorrect. P0B3E-00 - Hybrid/EV Battery Voltage Sense 1 Circuit High. P0607-00 - ECU Internal Performance. P1E1B-00…
• 10225165Aug 3, 2022Engine cooling. Water Pump For concern of leak at water pump, please check and re-torque water pump inlet tube fasteners as described in Service Bulletin 07-001-22 before replacing the water pump.
• 10225162Aug 3, 2022Transmission and drivetrain. Axle Assembly A parts kit (SENSOR KIT, Axle: 68544629A$) is available to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This parts kit must be used when only the Axle Locker Sensor fails. Do not replace the axle for sensor failure.
• 10230322Jul 30, 2022Air bags. Air Bag Warning Lamp On
• 10223786Jul 30, 2022Air bags. Air Bag Warning Lamp On
• 10230316Jul 28, 2022Electrical system, Exterior lighting. Left Headlight, Park Lamp Flickers Or Is Inoperative. B162A, B163A, B1632, B16CF
• 10223780Jul 28, 2022Electrical system, Exterior lighting. Left Headlight, Park Lamp Flickers Or Is Inoperative. B162A, B163A, B1632, B16CF
• 10230308Jul 20, 2022Visibility (wipers, defrost, mirrors). Washer Inoperative, Weak Or No Spray. Low Washer Indicator May Be Illuminated.
• 10223772Jul 20, 2022Visibility (wipers, defrost, mirrors). Washer Inoperative, Weak Or No Spray. Low Washer Indicator May Be Illuminated.
• 10230305Jul 16, 2022Electrical system. Check Engine Lamp (CEL) Multiple Diagnostic Trouble Codes (DTC)
• 10223769Jul 16, 2022Engine cooling. Check Engine Lamp (CEL) Multiple Diagnostic Trouble Codes (DTC)
• 10230340Jul 14, 2022Transmission and drivetrain. Front or Rear Axle Sensor Kit
• 10223804Jul 14, 2022Transmission and drivetrain. Front or Rear Axle Sensor Kit
• 10230302Jul 13, 2022Electrical system. No Start, Start Stop Inoperative, Cluster Message Service Start Stop System
• 10230301Jul 13, 2022Electrical system, Tires. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
• 10223766Jul 13, 2022Electrical system. No Start, Start Stop Inoperative, Cluster Message Service Start Stop System
• 10223765Jul 13, 2022Electrical system. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
• 10221509Jun 29, 2022Electrical system. Flash: Integrated Dual Charging Module (IDCM) Enhancements This bulletin involves reprogramming the IDCM with the latest software available or replacing the IDCM if required. Module, Integrated Dual Charging (IDCM)
• 10221446Jun 28, 2022Back-over prevention (rear camera). Panasonic VP4R Wi-Fi New Enrollment Pause
• 10221442Jun 24, 2022Visibility (wipers, defrost, mirrors). Sky Slider Power Top Does Not Operate. New Power Top Motors Inoperative
• 10221440Jun 23, 2022Lane departure. Air Bag Warning Lamp On, Service Air Bag Message Displayed On Cluster
• 10221500Jun 22, 2022Exterior lighting. Headlamp Condensation Clearing Procedure This bulletin is to communicate the procedure for headlamp condensation clearing.
• 10221498Jun 22, 2022Back-over prevention (rear camera), Wheels. Red Rust On Rear Bumper Bolts This bulletin includes replacing all four bumper bolts. Customers may comment on the following: Red rust is present on the rear bumper bolts equipped with steel bumpers
• 10221493Jun 18, 2022Seat belts, Seats. Front Seat Will Not Unfold and Lock Into Position This bulletin involves replacing the Easy Entry release cable and both front seattrack seat position returns. Customers may experience one or both of the following: This may be an intermittent condition the customer experiences.One or both of the front seats will not unlock from the Easy Entry position. One or both of the front seats will not unfold and lock back…
• 10221366Jun 15, 2022Engine cooling. Valve Cover Gasket It is advised to replace the full valve cover assembly if you are experiencing a valve cover leak Engineering has updated the skirt height of the valve cover to address oil leaks. Replace the valve cover (part # 04893800AI (right side) or 04893799AH (left side)includes valve cover gasket) to ensure proper repair. Please call FCA Redacted Content to facilitate fast track shipment of failed part.
• 10221425Jun 10, 2022Equipment. Panasonic VP4R Wi-Fi New Enrollment Pause
• 10221418Jun 9, 2022Equipment. U0184 Loss Communication With Radio Setting In Multiple Modules
• 10221415Jun 9, 2022Transmission and drivetrain. Sky Slider Power Top Does Not Operate. New Power Top Motors Inoperative
• 10221362Jun 8, 2022Visibility (wipers, defrost, mirrors). HVAC Blower Motor For concerns of intermittent or inoperative blower fan operation please contact FCA Redacted Content prior to replacement as returns have come back no trouble found. If no response in 15 minutes, proceed with repair.
• 10221475Jun 4, 2022Exterior lighting, Fuel system. 6.4L Fuel Injector High Flow Misfire This bulletin involves inspecting the Julian date on the fuel rails, fuel injectorsand possibly replacing fuel injectors. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) have been set: P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1…
• 10221408Jun 3, 2022Steering. Shimmy Felt In Front End
• 10221407Jun 3, 2022Body and structure. Frame Bracket Attached To Right Front Frame Rail Behind Front Tire.
• 10221405Jun 3, 2022Equipment. No Start, No Crank, Battery IOD
• 10214579May 25, 2022Electrical system, Equipment. PHEV Vehicle Does Not Charge With The Jeep Branded 32 Amp Charger Or Other Level 2 Battery Chargers
• 10214530May 25, 2022Equipment, Electrical system. complete wiring harness Before replacing this harness, please check for an available connector repair kit at the following: http://connectors.dcctools.com/home.htm;jsessionid=C6A3F1B696B030953878BF34FE86A8FE If a connector repair kit is not available on the website contact FCA Redacted Content to see if an alternative repair kit is available for your application prior to ordering the harness. If no response in 15…
• 10214578May 21, 2022Equipment, Electrical system. Panasonic VP4R Wi-Fi New Enrollment Pause
• 10214609May 13, 2022Transmission and drivetrain, Equipment, Electrical system. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). U0402-00 - Implausible Data Received From TCM. U145D - Implausible Data Received From TCM On D-PT.

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