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.

• 10227721Oct 26, 2022Electrical system, Equipment. Radio Remained On After Ignition Is Switched Off, Dead Battery from Excessive Radio Current Draw
• 10227715Oct 18, 2022Equipment. PHEV Vehicle Does Not Charge with The Jeep Branded 32 Amp Charger or Other Level 2 Battery Chargers
• 10227712Oct 13, 2022Brakes. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
• 10227708Oct 11, 2022Equipment. PHEV Vehicle Does Not Charge with The Jeep Branded 32 Amp Charger or Other Level 2 Battery Chargers
• 10227734Oct 1, 2022Engine cooling. Spark Knock/Engine Symptoms This bulletin involves cleaning the piston heads and cylinder head combustion chambersto resolve a spark knock condition being caused by oil intrusion through the PCV system. The customer may describe a knocking or pinging noise coming from the engine upon acceleration.
• 10226013Sep 30, 2022Electrical system. PHEV Vehicle Does Not Charge with The Jeep Branded 32 Amp Charger or Other Level 2 Battery Chargers
• 10225954Sep 28, 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. Please also inspect the water pump to block gasket, this gasket can be service separately.
• 10226002Sep 22, 2022Fuel system. Guidelines For The Use Of Alternative Diesel Fuels.
• 10225986Sep 14, 2022Electrical system, Other or unknown. Error 715 ? Not A Valid Market Message Received In wiTECH When Trying To Program An Immobilizer Component
• 10225982Sep 7, 2022Electrical system, Fuel system, Back-over prevention (rear camera). Service Hybrid Electric Vehicle System Message Displayed In The IPC. Vehicle Shakes During A Cold Start And Noise Is Heard Near The P2 Motor. DTC?s U0287-00 And B273C-00
• 10225981Sep 7, 2022Electrical system, Exterior lighting. Battery Charge Indicator (BCI) Does Not Illuminate
• 10225978Sep 2, 2022Body and structure. Power Top Rattles Over Bumps And Rough Roads.
• 10225369Aug 30, 2022Equipment. Ambient Temperature Sensor Servicing.
• 10225232Aug 30, 2022Equipment. Ambient Temperature Sensor Servicing.
• 10229513Aug 29, 2022Transmission and drivetrain. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
• 10229511Aug 27, 2022Equipment. Connected Service Requires Service Message
• 10225368Aug 27, 2022Equipment. Connected Service Requires Service Message
• 10225231Aug 27, 2022Equipment. Connected Service Requires Service Message
• 10229530Aug 25, 2022Electrical system. Customer Satisfaction Notification Z27 PHEV Battery Replacement
• 10229509Aug 25, 2022Transmission and drivetrain. Noise From The Front Axle Area Over Bumps
• 10229507Aug 25, 2022Electrical system. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
• 10225382Aug 25, 2022Electrical system. Customer Satisfaction Notification Z27 PHEV Battery Replacement
• 10225366Aug 25, 2022Transmission and drivetrain. Noise From The Front Axle Area Over Bumps
• 10225364Aug 25, 2022Electrical system. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
• 10225245Aug 25, 2022Electrical system. Customer Satisfaction Notification Z27 PHEV Battery Replacement
• 10225229Aug 25, 2022Transmission and drivetrain. Noise From The Front Axle Area Over Bumps
• 10225227Aug 25, 2022Electrical system. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
• 10229503Aug 24, 2022Electrical system. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
• 10225360Aug 24, 2022Electrical system. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
• 10225223Aug 24, 2022Electrical system. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
• 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.
• 10229494Aug 19, 2022Electrical system. Malfunction Indicator Lamp (MIL) On, ?Check Fuel Cap? Message
• 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.
• 10225351Aug 19, 2022Electrical system. Malfunction Indicator Lamp (MIL) On, ?Check Fuel Cap? Message
• 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.
• 10225214Aug 19, 2022Fuel system. Malfunction Indicator Lamp (MIL) On, ?Check Fuel Cap? Message
• 10229561Aug 12, 2022Fuel system. Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. 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: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel…
• 10229484Aug 12, 2022Electrical system. Cluster Message ?Electric Mode Unavailable Cabin Heating or Cooling? or ?Electric Mode Temporarily Unavailable?, Vehicle Engine Runs All the Time Does Not Enter Electric Vehicle (EV) Mode
• 10225413Aug 12, 2022Fuel system. Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. 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: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel…
• 10225276Aug 12, 2022Fuel system, Exterior lighting. Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. 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: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel…
• 10229487Aug 11, 2022Engine cooling. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
• 10229483Aug 11, 2022Electrical system. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
• 10225348Aug 11, 2022Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
• 10225346Aug 11, 2022Fuel system. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
• 10225211Aug 11, 2022Equipment. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
• 10225209Aug 11, 2022Electrical system. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
• 10229459Aug 10, 2022Other or unknown, Seats. Cable - front seat
• 10229442Aug 10, 2022Electrical system. Battery Kit, Hybrid NOTE 1 of 2: 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 causer property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process. To read the DCMail communication, go to…
• 10225305Aug 10, 2022Engine cooling, Electrical system, Fuel system, Brakes, Equipment. Battery Kit, Hybrid NOTE 1 of 2: 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 causer property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process. To read the DCMail communication, go to…
• 10225168Aug 10, 2022Electrical system. Battery Kit, Hybrid NOTE 1 of 2: 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 causer property damage, serious injury or even death. Exemptions will not be made for any dealer who fails to follow the appropriate handling process. To read the DCMail communication, go to…

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