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.

• 10187015Jan 20, 2021Engine cooling. COOLER, EGR If you are replacing the high pressure EGR cooler (p/n 68490113A$) for a suspected internal coolant leak that was detected by wetness in the EGR pipe or valve, please perform proper cooling system pressure test first to verify the leak. Refer to all published service information regarding Cooling Diagnosis and Testing (LEAK TESTING) before proceeding.
• 10187014Jan 20, 2021Brakes. VALVE, HIGH PRESSURE EGR If you are replacing the high pressure EGR valve (68490212A$) due to DTC P0407 or P0408 please refer to all published service information regarding proper diagnosis before proceeding. These DTCs are for the low pressure EGR system.
• 10215878Jan 18, 2021Equipment. Buzz Squeak Rattle From Floor Dash And Interior Items
• 10215877Jan 18, 2021Steering. Click Pop Creak Noise While Turning Steering Wheel
• 10187057Jan 18, 2021Body and structure. Buzz Squeak Rattle From Floor Dash And Interior Items
• 10187056Jan 18, 2021Steering. Click Pop Creak Noise While Turning Steering Wheel
• 10215868Jan 16, 2021Engine cooling, Electrical system, Equipment, Transmission and drivetrain. Check Engine Light On, Service Shifter Message, No Crank No Start. Transmission Wiring Harness Chaffed Or Pinched Near Exhaust DPF
• 10187047Jan 16, 2021Engine cooling. Check Engine Light On, Service Shifter Message, No Crank No Start. Transmission Wiring Harness Chaffed Or Pinched Near Exhaust DPF
• 10215866Jan 15, 2021Electrical system. Low Charging Voltage Displayed On Cluster
• 10187045Jan 15, 2021Equipment. Low Charging Voltage Displayed On Cluster
• 10215833Jan 13, 2021Visibility (wipers, defrost, mirrors), Equipment. WINDSHIELD Windshield cracked or blemish. When customer comes in for a cracked windshield, please note the location of crack and take pictures before repair. Please send pictures to FCA Redacted Content or load to the warranty claims system.
• 10187012Jan 13, 2021Visibility (wipers, defrost, mirrors). WINDSHIELD Windshield cracked or blemish. When customer comes in for a cracked windshield, please note the location of crack and take pictures before repair. Please send pictures to FCA Redacted Content or load to the warranty claims system.
• 10215858Jan 12, 2021Equipment, Visibility (wipers, defrost, mirrors). Exterior Rearview Mirrors Inoperative And Or Intermittent Operation.
• 10187037Jan 12, 2021Visibility (wipers, defrost, mirrors). Exterior Rearview Mirrors Inoperative And Or Intermittent Operation.
• 10187722Dec 31, 2020Electrical system. Telematic Box Module (TBM) Enhancements This bulletin involves updating the Telematic Box Module (TBM) latest available software. Customers may experience the following:CarPlay® audio does not mute during an active Ecall.
• 10187721Dec 31, 2020Equipment, Electrical system. UGQ Radio Enhancements This bulletin involves inspecting and if required updating the radio software to: 39.3 Customers may experience the following:CarPlay® audio does not mute during an active Ecall.
• 10187656Dec 17, 2020Fuel system, Equipment. Excessive Diesel Exhaust Fluid (DEF) Consumption.
• 10187655Dec 17, 2020Electrical system, Transmission and drivetrain. Diagnostic Trouble Code (DTC) P065A ? Generator System Performance, Additional Information.
• 10187706Dec 12, 2020Electrical system, Equipment, Engine. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire…
• 10187686Dec 5, 2020Equipment, Electrical system, Engine. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire…
• 10224044Nov 19, 2020Visibility (wipers, defrost, mirrors). Rear Wipers Do Not Park Correctly After Rear Wiper Swipe Operation
• 10224042Nov 19, 2020Electrical system. Headlamp Switch Dimmer Switch Controls Cannot Control Interior Ambient Lighting
• 10184721Nov 19, 2020Visibility (wipers, defrost, mirrors). Rear Wipers Do Not Park Correctly After Rear Wiper Swipe Operation
• 10184719Nov 19, 2020Electrical system. Headlamp Switch Dimmer Switch Controls Cannot Control Interior Ambient Lighting
• 10184421Nov 19, 2020Visibility (wipers, defrost, mirrors). Rear Wipers Do Not Park Correctly After Rear Wiper Swipe Operation
• 10184419Nov 19, 2020Electrical system, Interior lighting. Headlamp Switch Dimmer Switch Controls Cannot Control Interior Ambient Lighting
• 10223999Nov 18, 2020Engine cooling. ADAPTER, Engine Oil Filter If you are replacing the oil cooler/filter housing for an oil leak that appears to be between the cooler, and the engine block, please refer to all published service information regarding proper diagnosis of oil leaks in this area before proceeding. If all proper diagnosis has been performed, and there is still an active leak, please replace the oil cooler/filter housing gasket (pn#…
• 10184676Nov 18, 2020Engine cooling. ADAPTER, Engine Oil Filter If you are replacing the oil cooler/filter housing for an oil leak that appears to be between the cooler, and the engine block, please refer to all published service information regarding proper diagnosis of oil leaks in this area before proceeding. If all proper diagnosis has been performed, and there is still an active leak, please replace the oil cooler/filter housing gasket (pn#…
• 10184376Nov 18, 2020Equipment, Engine cooling. ADAPTER, Engine Oil Filter If you are replacing the oil cooler/filter housing for an oil leak that appears to be between the cooler, and the engine block, please refer to all published service information regarding proper diagnosis of oil leaks in this area before proceeding. If all proper diagnosis has been performed, and there is still an active leak, please replace the oil cooler/filter housing gasket (pn#…
• 10224038Nov 16, 2020Engine cooling. Oil Leak Between The Engine Oil Cooler/Filter Housing, And The Engine Block.
• 10184715Nov 16, 2020Engine cooling. Oil Leak Between The Engine Oil Cooler/Filter Housing, And The Engine Block.
• 10184415Nov 16, 2020Equipment, Engine cooling. Oil Leak Between The Engine Oil Cooler/Filter Housing, And The Engine Block.
• 10224029Nov 10, 2020Brakes, Fuel system, Exterior lighting. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
• 10224028Nov 10, 2020Exterior lighting, Air bags, Fuel system. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
• 10184706Nov 10, 2020Brakes, Fuel system, Electrical system. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
• 10184705Nov 10, 2020Equipment, Fuel system, Engine cooling. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
• 10184406Nov 10, 2020Engine, Electrical system, Transmission and drivetrain, Fuel system. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
• 10184405Nov 10, 2020Fuel system, Electrical system, Engine cooling. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
• 10224032Nov 9, 2020Other or unknown. MOPAR Trailer Brake Accessory Kit And Instructions
• 10184709Nov 9, 2020Electrical system. MOPAR Trailer Brake Accessory Kit And Instructions
• 10184409Nov 9, 2020Electrical system, Equipment. MOPAR Trailer Brake Accessory Kit And Instructions
• 10224030Nov 7, 2020Electrical system. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
• 10184707Nov 7, 2020Electrical system. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
• 10184407Nov 7, 2020Electrical system, Equipment. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
• 10224025Nov 6, 2020Electrical system. Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
• 10184702Nov 6, 2020Electrical system, Transmission and drivetrain, Engine. Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
• 10184402Nov 6, 2020Engine cooling, Electrical system, Transmission and drivetrain. Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
• 10224024Nov 5, 2020Exterior lighting, Back-over prevention (rear camera). (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10184701Nov 5, 2020Exterior lighting, Transmission and drivetrain, Equipment. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
• 10184401Nov 5, 2020Electrical system, Transmission and drivetrain, Fuel system. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.

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