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Service bulletins for the 2021 Jeep Wrangler

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.

1062 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
NotificationZD82024-01-02. Service bulletin. ENGINE AND ENGINE COOLING. Customer Satisfaction Notification ZD8 Coolant Leak
892162024-01-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. International Warranty Bulletin ID-23-03 2018 - 2023 (Current) Jeep Wrangler (JL) and 2020 - 2023 (Current) Jeep Gladiator (JT) - Corrosion Warranty Claim Simplification (Rev. A)
892112024-01-02. 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 (Rev. A)
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
S20250000012024-01-02. Service bulletin. EXTERIOR LIGHTING; BACK OVER PREVENTION. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
S228A0000282024-01-02. Service bulletin. ELECTRICAL SYSTEM. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
S23080000122024-01-02. Service bulletin. VISIBILITY. Rear Wiper Does Not Turn On
S18190000042024-01-02. Service bulletin. STRUCTURE. Shimmy Felt In Front End
91001382024-01-02. Service bulletin. POWER TRAIN. FILTER KIT, Transmission Oil For leak concerns that have been isolated to a transmission pan gasket, please replace ONLY the gasket. Pan/filter replacement are not required.
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.
91001342024-01-02. Service bulletin. SERVICE BRAKES; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION. Engine When replacing a GMET4 long block from a 2021 JL or older, you will need to carry over the injector wiring harness from the original engine, and the Fuel pressure sensor should be replaced with part number: 68212572AB.
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.
S23080001322023-12-18. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. The customer may complain of a check engine light and the Air Conditioning (A/C) may be inoperative.
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
S23080001262023-12-18. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM. Check Engine Light (CEL) P257F, P152E, or P0073
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.
91002472023-12-18. Service bulletin. BACK OVER PREVENTION; VEHICLE SPEED CONTROL. ERG Hydraulic Tensioner Before replacing any FEAD components, please check FEAD belt layout as per the engine sales code. Customer complaint may include a noise from under the hood described as a squeal, screech, squeak, chirp or belt-related noise and/or noisy tensioner/pulley. Please refer to SOL# S2309000007.
S23180000102023-10-30. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Message in cluster for "Performance Limited Service Fuel System" with no DTC's
S23090000062023-10-30. Service bulletin. ENGINE AND ENGINE COOLING. Engine oil leak
S23080001172023-10-30. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Check Engine Light On, P0CA6-00 Hybrid/EV Battery Charging Current High
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.

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