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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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
91003602024-06-24. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH Power Window Before replacing the window switch, please follow these steps: 1.- Review the master window Switch for any physical issue (Button stuck, broke). If not, physical issue is found move to next step 2.- Make sure all the switches harness are properly connected, disconnect the switch and reconnect it, and reverify the issue. If after performing these steps the switch remains faulty, please replace the switch
945192024-05-16. Other. ELECTRICAL SYSTEM. HEADLAMP
08028242024-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Radio Over The Air Update from QR39.82F to QR40.12 Software Version Customer may experience one or more of the following: ? 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 QR39.82F to QR40.12. NOTE: National launch for this FOTA update is expected to begin Feburary 19, 2024.
08026242024-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Radio Over The Air Update from QR39.5 to QR40.11 Software Version Customer may experience one or more of the following: ? 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 QR39.5 to QR40.11. NOTE: National launch for this FOTA update is expected to begin Feburary 19, 2024.
08025242024-03-18. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Radio Over The Air Updating to QR40.12 Software Version Customers may experience one or more of the following: ? 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 QR39.2 to QR40.11. NOTE: National launch for this FOTA update is expected to begin February 19, 2023.
08020242024-03-18. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS:ACCESORY POWER OUTLET/JACK/PORT/USB/SAE/CIGARETTE LIGHTER. Floor Console USB Inoperative Customers may comment on the following: ? Customer states the Apple Carplay/Android Auto? does not work or is intermittently working when their device is plugged into the center console bin USB port. This replacing the center console USB cable.
ReferenceY40A2024-03-18. Service bulletin. ELECTRICAL SYSTEM. Revised Customer Satisfaction Notification Y40 ? Control Module Software Updates
ReferenceY402024-03-18. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Customer Satisfaction Notification Y40 Control Module Software Updates
S22080000202024-03-18. Service bulletin. ELECTRICAL SYSTEM. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
S14080003842024-03-18. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
08245232024-01-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Over The Air Update to Q339.3 to QR39.62 Software Version Customers may experience one or more of the following: ? 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 Q339.3 to QR39.62. NOTE: The National launch for this FOTA update campaign is expected to begin December 04, 2023.
S23080001542024-01-16. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Rear Park Assist Warning Chime When Nothing is Behind the Vehicle
S23080001442024-01-16. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Multiple Cluster Warning Lamps Flash on While Driving
S23080000592024-01-16. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. "Check Charge Cable" Message Appears on Cluster
91002262024-01-08. Service bulletin. ELECTRICAL SYSTEM. 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.
91002122024-01-08. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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.
91002092024-01-08. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; 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.
08048232024-01-02. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; BACK OVER PREVENTION; EXTERIOR LIGHTING. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates Customers may experience a false Malfunction Indicator Lamp (MIL) illumination related to PHEV battery: ? P1A21-00 - HV Battery Contactor Control Sequence Incorrect. ? P0B3E-00 - Hybrid/EV Battery Voltage Sense 1 Circuit High. ? P0607-00 - ECU Internal Performance. ? P1E1B-00 - Hybrid/EV Battery Side Voltage System Isolation. ? P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. ? P1C00-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range Low. ? P1C01-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range High. ? P1A9B-00 - Hybrid/EV Battery Temperature Sensor 1 Out Of Range High. ? P0BBD-00 - Hybrid Battery Pack Voltage Variation Exceeded Limit. ? P167B-00 - Controlled System Shutdown. ? U1885-00 - Battery Energy Control Module Lost Communication With HCP. ? P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. ? U0111 - Lost Communication With Hybrid Battery Pack Sensor Module. ? P0CA7-00 - Hybrid/EV Battery Discharging Current High. ? P1A0C-00 - Battery Energy Control Module System Voltage Low. This bulletin involves updating the BPCM with the latest available software. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update: ? Powertrain Control Module (PCM). ? Integrated Dual Charging Module (IDCM). ? Transmission Control Module (TCM). ? Battery Pack Control Module (BPCM). ? Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM).
08047232024-01-02. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Flash: Integrated Dual Charging Module (IDCM) Enhancements Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTCs have been set: ? **B22A9-16 - ECU Internal Performance-Circuit Voltage Below Threshold. ? B22A9-17 - ECU Internal Performance-Circuit Voltage Above Threshold. ? B22A9-19 - ECU Internal Performance-Overcurrent.** ? B22A9-64 - ECU Internal Performance-Signal Plausibility Failure. ? P0D27-00 - Battery Charger 1 Input Voltage Too Low. Customer may also experience the following: ? **Unable to charge the vehicle with level 2 charger.** ? Vehicle would not charge and the charge station circuit breaker in the house / receptacle trips when its plugged into the vehicle. This bulletin involves reprogramming the IDCM with the latest software available. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this IDCM update: ? Powertrain Control Module (PCM). ? Integrated Dual Charging Module (IDCM). ? Transmission Control Module (TCM). ? Battery Pack Control Module (BPCM). ? Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM).
S228A0000282024-01-02. Service bulletin. ELECTRICAL SYSTEM. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
S18080000572023-12-18. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Inspecting And Disconnecting Negative Battery Cables On ESS Vehicles
S23080001262023-12-18. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM. Check Engine Light (CEL) P257F, P152E, or P0073
S23180000102023-10-30. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Message in cluster for "Performance Limited Service Fuel System" with no DTC's
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.

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