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Service bulletins for the 2018 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.

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

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By component

By trouble code

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

Bulletins, newest first
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.
23089232023-10-02. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. Rear Defroster Inoperative Customer may experience 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.
S19190000042023-10-02. Service bulletin. ELECTRICAL SYSTEM; STEERING. U0131-00-LOST COMMUNICATION WITH POWER STEERING CONTROL MODULE ?A?. Service Electric Power Steering Message On Cluster.
S20080000312023-10-02. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:PORT. Low Charging Voltage Displayed On Cluster
08166232023-09-25. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU); ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates 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: ?**P0A80-00 - Replace Hybrid/EV Battery Pack. ? P0EDD-00 - Contactor Wear Counter Far Advanced.** ? P0AC5-00 - Hybrid/EV Battery Temperature Sensor "B" Circuit. ? P2B28-00 - Hybrid/EV Battery Pack Coolant Pump Performance. ? P0A1F-09 - Battery Energy Control Module A Internal Performance-Component Failures. ? P1A1E-00 - Hybrid Thermal System Control Circuit. ? P0A94-03 - DC/DC "A" Converter Performance-FM/PWM Failures. ? P0A94-05 - DC/DC "A" Converter Performance-System Programming Failures. ? U0293-00 - Lost Communication With Hybrid Control Module. ? U1886-00 - Battery Energy Control Module Lost Communication With ECM/PCM. In addition, the customer may comment on one or more of the following conditions: ? **Battery light on in the Instrument Panel Cluster (IPC).** ? Extremely short auto-stops during a 0 °C (32 °F) temperature. This bulletin involves updating the BPCM with the latest available software.
91001852023-09-25. Service bulletin. STEERING; ELECTRICAL SYSTEM. ELECTRIC HYDRAULIC POWER STEERING PUMP Prior to replacing this component for damage at the pump electrical connection, please contact FCA redacted content. If no response in 15 minutes, proceed with repair.
90044332023-09-25. Service bulletin. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM; SERVICE BRAKES; ELECTRICAL SYSTEM. PUMP, Vacuum For DTC Code P258B - ELECTRONIC VACUUM PUMP PERFORMANCE. Due to brake vacuum pumps returned with trouble not found, please follow the proper diagnostics outline in the service library this also includes checking all electrical and vacuum hose connections prior to replacement of the vacuum pump. This will avoid unnecessary repair and potential charge back on the vacuum pump.
08144232023-08-21. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU). Flash: Hybrid Control Processor (HCP) Updates The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? **P0C01-00 - Drive Motor A Current High. ? P0C05-00 - Drive Motor A Phase U-V-W Circuit/Open.** ? P0507 - Idle Speed Performance Higher Than Expected. **In addition the customer may notice the following: ? Loss of 12V charging (Battery Light) and/or loud noise from MGU motor.** This bulletin involves updating the HCP with the latest available software and if necessary replacing the Motor Generator Unit (MGU).
ReferenceZD72023-08-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Customer Satisfaction Notification ZD7 - Radio Software Update
BulletinA2023-07-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Customer Satisfaction Notification ZD7 - Radio Software Update
S228A0000282023-04-17. Service bulletin. ELECTRICAL SYSTEM. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
S14080003842023-04-17. Service bulletin. ELECTRICAL SYSTEM. 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
S2008000075RevA2023-01-17. Service bulletin. ELECTRICAL SYSTEM. No Start, Start Stop Inoperative, Cluster Message Service Start Stop System
S22080001382023-01-17. Service bulletin. ELECTRICAL SYSTEM; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
S21080001722023-01-17. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s
S21080001672023-01-17. Service bulletin. ELECTRICAL SYSTEM. Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly
S21080001632023-01-17. Service bulletin. ELECTRICAL SYSTEM. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
08093212023-01-17. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. UAS, UAQ, UCS, UAV, UCV and UCQ Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash 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. This is part of a two step FOTA update, first update brings software level to 22.61 and this second FOTA update will take the software to 22.64. National launch for this second step is May 24, 2021. Customers may experience one or more of the following:Navigation is incorrect or can not calculate route. GPS locations is inaccurate. Uconnect radio apps are all inoperable. Backup camera screen is blue (DT and KL). Green horizontal lines appear across screen (DT and KL). Anti-theft code request message. Backup camera screen is blank. Lines appear across screen. Radio control screen is blank or locked. Radio reset intermittently. Unable to adjust audio volume. Unable to switch modes between AM, FM, SAT or Media. In addition the following enhancements are included in this update:Carplay® connectivity improvement. Improvement to Bluetooth® phone pairing. Bluetooth devices unresponsive. Improved sound quality when using a Bluetooth phone.
24007212023-01-17. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION:SOFTWARE. Flash: HVAC Diagnostic and System Updates This bulletin involves reprogramming the HVAC control module with the latest available software. The customer may notice one or more of the following:Intermittent change of smell or humidity level in vehicle. An intermittent blast of warm air when A/C is on. Intermittent increase of outside air through the HVAC system. In addition, the following software enhancement is also available:Improvements for customer concerns of 'cabin too warm', specifically in the mid ambient temperature range 4.5-15.5 °C (40-60 °F).
S2008000103RevA2023-01-09. Service bulletin. ELECTRICAL SYSTEM. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
18018202023-01-09. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs: P04FC - Crankcase Ventilation System Performance. P0456 EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. P061A - Level 2 Torque Performance. P0507 - Idle Speed Performance Higher Than Expected. Customers may also describe the following condition:Excessive fan noise when the A/C is on MAX output. Other enhancements included in this update: Electric vacuum pump (EVP) update. Fan noise reduction.
S20080001032023-01-09. Service bulletin. ELECTRICAL SYSTEM. No Start, High Current Fuse Array (HCFA) Location And Testing
S17080001182023-01-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery Drain Concern, Dual USB Port Normal Operational Draw, Extended Illumination Or Extended Operation After Key Off

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