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Service bulletins for the 2023 Jeep Gladiator

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

378 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
890792024-01-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D-23-04 2018 - 2023 (Current) Jeep Wrangler (JL) and 2020 - 2023 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification
S21080000152024-01-02. Service bulletin. BACK OVER PREVENTION. Uconnect Box Require Service Message
S228A0000282024-01-02. Service bulletin. ELECTRICAL SYSTEM. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
9003357A2024-01-02. Service bulletin. ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use red O-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA.
90033572024-01-02. Service bulletin. BACK OVER PREVENTION. ADAPTER, Engine Oil Filter (Pentastar V6) For all 2014MY replace the Oil Filter Adapter (OFA). For any other MY (with mileage above 30,000) review and follow instructions from STAR Online S1809000007 REV. C available on Dealer Connect. Also, consider the following: 1) Remove OFA 2) Replace only the oil inlet O-ring and gaskets (seals kit in SOL above). 3) Re-install the OFA. For 2023MY and beyond use black O-ring. For 2022MY and prior use red O-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA.
91001332024-01-02. Service bulletin. BACK OVER PREVENTION. ROCKER ARM ASSY - ROLLER ROCKER Before replacing the intake or exhaust rocker arms due to an abnormal ticking noise, please check that the INTAKE Hydraulic Lash Adjusters are not "collapsed". If a collapsed INTAKE HLA is found, replace all INTAKE HLAs on the suspect cylinder head. The noise can occur at low or high RPMs, and at low or high temperatures. There are no Diagnostic Trouble Codes (DTC)s present.
91001322024-01-02. Service bulletin. BACK OVER PREVENTION. ENGINE ASSY - 3.6L AUTO TRANS Before replacing the engine due to an abnormal ticking noise, please check that the INTAKE Hydraulic Lash Adjusters are not "collapsed". If a collapsed INTAKE HLA is found, replace all INTAKE HLAs on the suspect cylinder head. The noise can occur at low or high RPMs, and at low or high temperatures. There are no Diagnostic Trouble Codes (DTC)s present. CAUSE: INTAKE Hydraulic Lash Adjuster may have a manufacturing issue that can cause the plunger to stick, generating valvetrain noise.
08230232023-12-18. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Over The Air Updating From QR39.6 to QR40.12 Software Version Customers may experience one or more of the following symptoms: ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from QR39.6 to QR40.12. NOTE: National launch for this FOTA update is expected to begin November 06, 2023.
S238A0000502023-12-18. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. 4.5 Inch Premium Bar Speaker Static, Rattles, Buzzing
S18080000572023-12-18. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Inspecting And Disconnecting Negative Battery Cables On ESS Vehicles
S238A0000482023-12-18. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Reset After Clock Adjustment
91002182023-12-18. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM. Body Control Module For concern related to DTC U0140 - Lost Communication with Body Control Module, please follow published diagnostic information for this DTC to ensure all module connections are secure. Please check all the connections at BCM from other modules that could potentially report a loss of communication with the BCM and ensure that they are fully seated as per diagnostic information. Some affected modules may include: Amplifier(AMP),IPC,HVAC,Radio,Digital TV,TPM,PCM,ORC,DTCM,SCCM,CVPM,EHPS,ICS,PTCM,OCM,PTS,PAM,DAS,DPDM,CSWM,ESM,ABS,PSSM,EAM,TBM,HCP,RF Hub,ASBS,LBSS,RBSS,AHLM,ITM,TCM. *Ensure to check all the wiring harness connected to BCM with Other Modules are proper. *Please disconnect the Battery Negative Cable for 15 minutes and then reconnect. *Clear the codes and check to see if any active DTC's return for U0140 *If still DTCs U0140 presents then contact Engineering Expert: FCA Redacted Content
91002442023-12-18. Service bulletin. VEHICLE SPEED CONTROL. FRT DOOR HINGE - DOOR CHECK If the front door check strap physically breaks or cracks, please call FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the broken part and email the pictures to FCA Redacted Content.
09015232023-10-30. Service bulletin. ENGINE AND ENGINE COOLING. Lower Radiator Hose Not Properly Seated Customers may experience the following: ? Coolant leak underneath the vehicle. This bulletin involves inspecting and if necessary re-seating the lower radiator hose.
23094232023-10-30. Service bulletin. STRUCTURE; VISIBILITY:GLASS, SIDE/REAR. Back Glass Water Leak Interior water leak at back glass (backlite) and hardtop, allowing water to leak into the vehicle at the lower passenger side corner Fig. 1. This bulletin involves inspecting the backlite for water leaks and possibly replacing the backlite if a leak is found.
S23090000062023-10-30. Service bulletin. ENGINE AND ENGINE COOLING. Engine oil leak
S23230000732023-10-30. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. Exterior Mirror And Or Blind Spot Inoperative.
S23230000742023-10-30. Service bulletin. STRUCTURE. Buzz Squeak Rattle (BSR) From Sound Bar Or Sport Bar Area.
S22210000032023-10-30. Service bulletin. POWER TRAIN. 8-Speed Transmission, Additional Transmission Fluid Leak Inspection/Repair Guidelines.
S23230000712023-10-30. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Front Door Window Will Not Roll Down All The Way. Window Stops Part Way Down.
S23190000072023-10-30. Service bulletin. STEERING. Squeak Noise From Dash Area When Turning The Steering Wheel.
91002292023-10-30. Service bulletin. SUSPENSION. LIFTER, Hydraulic Roller Deactivating Please do not replace MDS lifters because the disconnecting pin is not lined up, this is normal and not a defect.
91002262023-10-30. Service bulletin. ELECTRICAL SYSTEM:WIRING. Connector kit Before ordering this connector repair kit 68018957A$, check it in the Mopar Connector Repair Kit Website to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.
91002122023-10-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. PUMP Water For 2016-2024MY 3.6L Pentastar Upgrade with suspected coolant leak. PRIOR TO PERFORMING ANY WATER PUMP REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2307000002. Please submit pictures of the leak area thru the DIDI process outlined in the STAR Online document. NOTE: Some coolant residue may be found at the water pump weep hole plug area which may be normal, but coolant should not be dripping from this location. If unsure about, use the Pressurized Coolant System Inspection process as found in the Dealer Connect Cooling Diagnosis and Testing Procedures.
91002092023-10-30. Service bulletin. ELECTRICAL SYSTEM:WIRING:POSITION/LIMIT SENSOR/SWITCH; ELECTRICAL SYSTEM. Switch-Mirror Before replacing this Switch, please follow the service procedures to properly diagnose it 1) Remove the switch 2) Please check the continuity on each pin of the switch based on the table found in the service Procedures. If after testing switch is still faulty, please call FCA Redacted Content. If no response after 15 minutes, proceeds with switch replacement.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.