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.

• 10214608May 13, 2022Electrical system, Transmission and drivetrain, Equipment. 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: P1C00-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range Low. P1C01-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range High. P1A9B-00 - Hybrid/EV Battery…
• 10214607May 13, 2022Equipment, Transmission and drivetrain, Electrical system. Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates This bulletin involves reprogramming the HCP and AHCP or also known as Power Inverter Module (PIM) 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 Codes (DTCs)…
• 10214606May 13, 2022Equipment, Electrical 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)
• 10214604May 13, 2022Transmission and drivetrain, Electrical system, Equipment. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM 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 Codes (DTCs). U0293-00 - Lost Communication With Hybrid Control Module. P0732-00 - Gear 2 Shift Incorrect Ratio…
• 10214562May 10, 2022Equipment, Electrical system. PHEV Vehicle Does Not Charge With The Jeep Branded 32 Amp Charger Or Other Level 2 Battery Chargers
• 10214560May 6, 2022Electrical system, Transmission and drivetrain, Engine cooling. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
• 10214521May 4, 2022Engine cooling. PUMP, Auxiliary Coolant Customer experiences Check Engine Light with DTC/ P026 E, P023 A, or P023 B all related to Coolant Pump performance. Dealers are replacing Auxiliary Coolant Pump Part #68290300AA. Then draining and refilling coolant. If vehicle has DTC/ P026 E, P023 A, or P023 B present, drain and refill coolant before changing the pump making sure all air is out of the system, then clear codes.
• 10214518May 4, 2022Engine, Engine cooling. Valve Cover Gasket If you are experiencing a right valve cover leak and plan on replacing only the gasket, the customer may later return for an oil leak. Engineering has updated the skirt height of the valve cover to address oil leaks. Replace the valve cover (part # 04893800AI includes valve cover gasket) to ensure proper repair. Please call FCA Redacted Content if further questions or help is needed with parts…
• 10228059Apr 28, 2022Fuel system. Water Pump Inlet Tube Fastener Torque
• 10228044Apr 28, 2022Fuel system, Engine cooling. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fasteners to possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10228011Apr 28, 2022Electrical system, Other or unknown. Coolant Color Looks Lighter Than Service Procedure Coolant
• 10228002Apr 21, 2022Electrical system. Standard High Voltage Module Flash Update Procedure
• 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.
• 10229174Mar 31, 2022Electrical system, Exterior lighting. Flash: Anti-Lock Brake System (ABS) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code (DTC) has been set: C055F-00 - ABS Hydraulic Unit Performance.The software update will correct C055F-00…
• 10223212Mar 31, 2022Electrical system, Exterior lighting. Flash: Anti-Lock Brake System (ABS) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code (DTC) has been set: C055F-00 - ABS Hydraulic Unit Performance.The software update will correct C055F-00…
• 10220830Mar 31, 2022Electrical system, Exterior lighting. Flash: Anti-Lock Brake System (ABS) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code (DTC) has been set: C055F-00 - ABS Hydraulic Unit Performance.The software update will correct C055F-00…
• 10212434Mar 31, 2022Electrical system, Exterior lighting. Flash: Anti-Lock Brake System (ABS) Module Updates This bulletin involves reprogramming the ABS module with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Code (DTC) has been set: C055F-00 - ABS Hydraulic Unit Performance.The software update will correct C055F-00…
• 10229087Mar 30, 2022Engine cooling. MIL Lamp On, DTC P0330 Knock Sensor 2 Circuit
• 10223125Mar 30, 2022Back-over prevention (rear camera). MIL Lamp On, DTC P0330 Knock Sensor 2 Circuit
• 10220743Mar 30, 2022Back-over prevention (rear camera). MIL Lamp On, DTC P0330 Knock Sensor 2 Circuit
• 10212346Mar 30, 2022Electrical system. MIL Lamp On, DTC P0330 Knock Sensor 2 Circuit
• 10229083Mar 25, 2022Engine cooling. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
• 10223121Mar 25, 2022Exterior lighting. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
• 10220739Mar 25, 2022Exterior lighting. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
• 10212342Mar 25, 2022Exterior lighting, Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
• 10229163Mar 24, 2022Exterior lighting, Fuel system. Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube and cap with improved versions. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP…
• 10229076Mar 24, 2022Back-over prevention (rear camera). Rattle Noise From Door
• 10223201Mar 24, 2022Fuel system, Exterior lighting. Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube and cap with improved versions. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP…
• 10223114Mar 24, 2022Back-over prevention (rear camera). Rattle Noise From Door
• 10220819Mar 24, 2022Exterior lighting, Fuel system. Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube and cap with improved versions. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP…
• 10220732Mar 24, 2022Back-over prevention (rear camera). Rattle Noise From Door
• 10212423Mar 24, 2022Exterior lighting, Fuel system. Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube and cap with improved versions. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP…
• 10212335Mar 24, 2022Body and structure. Rattle Noise From Door
• 10228988Mar 23, 2022Body and structure, Equipment. Lithium Ion Batteries Beginning April 1, 2022, a $5,000 penalty will be assessed to dealers who return any visually damaged battery to the supplier. Improper handling of damaged lithium ion batteries can cause property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process.
• 10223027Mar 23, 2022Equipment. Lithium Ion Batteries Beginning April 1, 2022, a $5,000 penalty will be assessed to dealers who return any visually damaged battery to the supplier. Improper handling of damaged lithium ion batteries can cause property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process.
• 10220644Mar 23, 2022Equipment. Lithium Ion Batteries Beginning April 1, 2022, a $5,000 penalty will be assessed to dealers who return any visually damaged battery to the supplier. Improper handling of damaged lithium ion batteries can cause property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process.
• 10212247Mar 23, 2022Equipment, Body and structure. Lithium Ion Batteries Beginning April 1, 2022, a $5,000 penalty will be assessed to dealers who return any visually damaged battery to the supplier. Improper handling of damaged lithium ion batteries can cause property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process.
• 10229160Mar 22, 2022Fuel system, Engine cooling. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fastenersto possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10223198Mar 22, 2022Fuel system, Engine cooling. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fastenersto possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10220816Mar 22, 2022Engine cooling, Fuel system. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fastenersto possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10212420Mar 22, 2022Fuel system, Engine cooling. Water Pump Inlet Tube Fastener Torque This bulletin involves checking the torque on the water pump inlet tube fastenersto possibly eliminate coolant leak at this location. The customer may describe either a coolant leak or the coolant level is low.
• 10229157Mar 19, 2022Electrical system, Exterior lighting. 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 the following DTC: P0300 - Multiple Cylinder Misfire. In addition, customers may experience the following concern: Spark knock/detonation sound from the engine at…
• 10223195Mar 19, 2022Exterior lighting, 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 the following DTC: P0300 - Multiple Cylinder Misfire. In addition, customers may experience the following concern: Spark knock/detonation sound from the engine at…
• 10220813Mar 19, 2022Exterior lighting, 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 the following DTC: P0300 - Multiple Cylinder Misfire. In addition, customers may experience the following concern: Spark knock/detonation sound from the engine at…
• 10212417Mar 19, 2022Transmission and drivetrain, Electrical system, Engine. 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 the following DTC: P0300 - Multiple Cylinder Misfire. In addition, customers may experience the following concern: Spark knock/detonation sound from the engine at…
• 10229059Mar 17, 2022Engine cooling. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
• 10228980Mar 17, 2022Fuel system, Brakes. PUMP, Washer, Windshield Windshield washer pump is inop or low pressure If customer comes in with the issue described above, please contact the following individuals prior to servicing the vehicle. FCA Redacted Content If no response in 15 minutes, proceed with repair.
• 10223097Mar 17, 2022Transmission and drivetrain. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
• 10223019Mar 17, 2022Fuel system, Brakes. PUMP, Washer, Windshield Windshield washer pump is inop or low pressure If customer comes in with the issue described above, please contact the following individuals prior to servicing the vehicle. FCA Redacted Content If no response in 15 minutes, proceed with repair.
• 10220715Mar 17, 2022Electrical system, Other or unknown. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting

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