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.

• 11018676May 21, 2025Suspension. "Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
• 11018637May 20, 2025Body and structure. Backlite Heated Liftgate Glass Assembly: For rear window defrost inoperative concerns where heated glass electrical tab has become detached, it is not necessary to replace the glass assembly. For loose or detached electrical tab, refer to TSB 23-007-25 for repair procedures on reattaching a loose tab. For burned or discolored gridlines on hard tops, DO NOT change the complete Flipper glass assembly. This…
• 11018482May 18, 2025Engine. "Misfire Diagnostic Trouble Codes (DTCs), Rough Idle, Valvetrain Noise Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0301 - Cylinder 1 Misfire. ● P0302 - Cylinder 2 Misfire. ● P0303 - Cylinder 3 Misfire. ● P0304 - Cylinder 4 Misfire. ● P0305 - Cylinder 5 Misfire. ● P0306 - Cylinder 6 Misfire…
• 11018447May 16, 2025Electrical system. "Washer Light On And Will Not Turn Off After Adding Washer Solvent."
• 11018500May 15, 2025Fuel system. Tube - fuel injector supply & gasket - none
• 11018408May 14, 2025Fuel system. Tube - fuel injector supply & gasket - none
• 11018453May 12, 2025Transmission and drivetrain. "Transmission Fluid Please note fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason for unit replacement. Visible ""glitter"" or debris in the pan does not justify complete unit replacements."
• 11018452May 12, 2025Transmission and drivetrain. Transmission "Transmission For transmission concerns related to DTCs P0733-00, P1DA8-00, and/or P1D92-00, a repair is available, and transmission replacement is NOT required. Please reference TSB 21-009-25 Rev. A, for details on D-clutch replacement. Please also note, visible ""glitter"" or debris in the pan and fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the…
• 11018451May 12, 2025Engine. 3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. Refer to SOL # S2509000004. It is also important to confirm that the vehicle being repaired has the latest calibration/software update for oil pump operation mode (high pressure mode) during engine start up. RU, VF, WL & WD vehicles already include the latest oil pump mode in all 25MY and beyond. 24MY service releases are also available.
• 11017401Apr 29, 2025Engine. "No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated"
• 11017092Apr 17, 2025Electrical system. AM Radio Static, With No Active or Stored Radio Antenna Diagnostic Trouble Codes (DTC).
• 11017073Apr 16, 2025Steering. "Drag Link Long Socket FOR STEERING SHIMMY DIAGNOSIS, PLEASE REFERENCE S1819000004 Rev. Q AND 19 - Steering / Diagnosis and Testing (IN SERVICE LIBRARY). PLEASE REFER 19 - Steering / Linkage / END, Tie Rod / Diagnosis and Testing IF YOU HAVE BALL JOINT LOOSENESS CONCERN. PLEASE DO NOT REPLACE DRAG LINK AND TIE ROD UNLESS PART HAS VISIABLE DAMAGE OR FREE PLAY EXCEEDS SPECS."
• 11017070Apr 14, 2025Electrical system. "Telematics Box Module Verify Z part number availability. Order a Z part number for all Exchange Orders: warranty, Mopar, customer pay and service contract. Order regular part number for New unsold units only."
• 11016951Apr 11, 2025Other or unknown. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
• 11016939Apr 9, 2025Other or unknown. Warranty Newsletter – Volume 11, Issue 4
• 11016879Apr 5, 2025Transmission and drivetrain. "850RE D Clutch Repair **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must have at least 11,265 km (7,000 mi.) and exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● 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. Customers may also…
• 11016617Apr 4, 2025Electrical system, Body and structure. Rear Defogger Solder Terminals Detached.
• 11016439Apr 2, 2025Engine. Misfire DTCs, Rough Idle, Valvetrain Noise
• 11016431Apr 2, 2025Body and structure. "Replacement Exterior Mirror Glass Connector Does Not Match For Blind Spot."
• 11016424Apr 2, 2025Body and structure. Exterior Rear View Mirror Stained And Will Not Clean.
• 11016107Apr 1, 2025Engine. Engine Rattle Noise
• 11016061Mar 28, 2025Transmission and drivetrain. "Transmission For transmission concerns related to DTCs P0733-00, P1DA8-00, and/or P1D92-00, a repair is available, and transmission replacement is NOT required. Please reference TSB 21-009-25 Rev. A, for details on D-clutch replacement. Please also note, fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason for unit replacement. Complete unit replacements…
• 11016136Mar 18, 2025Other or unknown. TOP KIT - SOFT
• 11015811Mar 17, 2025Transmission and drivetrain. "D Clutch Repair Kit For transmission concerns related to DTCs P0733-00, P1DA8-00, and/or P1D92-00, a repair is available, and transmission replacement is NOT required. Please reference TSB 21-009-25 Rev. A, for details on D-clutch replacement. Please also note, fluid color/condition/odor is NOT an indicator of transmission health and should not be used as the reason for unit replacement. Complete unit replacements…
• 11015810Mar 17, 2025Other or unknown. "CANISTER Vapor -If an issue is detected with the Evaporative System Integrity Module (ESIM) Detector and not the Vapor Canister, only replace the ESIM Detector. -Before replacing the Vapor Canister due to Hard to Fill condition, replicate the condition at the Gas Station.
• 11015797Mar 17, 2025Brakes. Antilock Brake System (ABS) Module Will Not Initialize After Recent Service Replacement.
• 11015598Mar 12, 2025Other or unknown. ID-23-03 Rev. I 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
• 11015591Mar 12, 2025Other or unknown. D-23-04 Rev. H 2018 - 2024 Jeep Wrangler (JL) and 2020 - 2024 Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
• 11015532Mar 7, 2025Electrical system. "Flash: Power Inverter Module(PIM) Flash Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find one or more of the following Diagnostic Trouble Code (DTC) has been set: ● P0C19-00 - Drive Motor A Torque Delivered Performance. ● P1B03-00 - Resolver Signal / MCPA Rationality.
• 11015807Mar 4, 2025Engine. Hose - coolant recovery bottle
• 11015307Mar 4, 2025Electrical system. Apple CarPlay Does Not Complete The First Initial Wireless Connection.
• 11015297Mar 4, 2025Engine. Engine Noise
• 11015033Feb 28, 2025Body and structure. Replacement Exterior Mirror Glass Connector Does Not Match For Blind Spot.
• 11015068Feb 25, 2025Engine. "Engine Complete With scope to reduce cost per repair, Stellantis Engineering ask to use long block instead of engine complete replacement for GME T4 DOHC.
• 11015065Feb 25, 2025Engine. 3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. These conditions may be related to worn intake camshaft high lift lobe(s), and intake rocker arm(s) high lift slider. High mileage failure (10,000-60,000 miles). 1. Remove the valve cover(s) per the released service procedures. The use of a stethoscope or DTC specific cylinder misfire codes can help to locate the condition to the left…
• 11014538Feb 22, 2025Electrical system. Uconnect Box Require Service Message
• 11014532Feb 19, 2025Body and structure. Exterior Rear View Mirror Stained And Will Not Clean.
• 11014891Feb 18, 2025Electrical system. Module - battery heater
• 11014408Feb 18, 2025Engine. Engine Rattle Noise
• 11014268Feb 15, 2025Steering. Shimmy Felt In Front End
• 11014385Feb 14, 2025Body and structure, Electrical system. "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. "
• 11014266Feb 14, 2025Body and structure, Electrical system. Defogger Is Not Working. Terminal Detached From The Glass.
• 11014384Feb 13, 2025Electrical system, Body and structure. "Rear Defroster Inoperative Customers may experience one or more of the following: ● Rear window is not defrosting. ● The rear window glass left or right side defrost solder terminal is detached from the defrost grid. This bulletin involves replacing the Electric Backlite (EBL) wire connector repair and re-securing the electrical connector(s) to the rear window"
• 11014250Feb 13, 2025Electrical system. 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
• 11014337Feb 11, 2025Electrical system. Uconnect Box Error Message, With Active or Stored Cellular Antenna Open or Short Diagnostic Trouble Codes (DTCs)
• 11014264Feb 11, 2025Electrical system. Cluster Warning Lamp is on, Service 4WD Message
• 11014231Feb 10, 2025Engine. "3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. These conditions may be related to worn intake camshaft high lift lobe(s), and intake rocker arm(s) high lift slider. High mileage failure (10,000-60,000 miles). 1. Remove the valve cover(s) per the released service procedures. The use of a stethoscope or DTC specific cylinder misfire codes can help to locate the condition to the left…
• 11014844Feb 5, 2025Body and structure. HINGE - DOOR
• 11013597Feb 1, 2025Transmission and drivetrain. "D Clutch Repair 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): ● 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. Customers may also comment on one or more of the following: ●…
• 11013643Jan 30, 2025Engine. THROTTLE BODY

← All problems reported for the 2021 Jeep Wrangler