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Service bulletins for the 2020 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.

1020 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
08100232023-05-30. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Battery Charge Indicator (BCI) Replacement Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC has been set: ? B1271-00 - Charge Level Indicator Internal. Customer may also experience the following: ? BCI does not indicate charge status while the vehicle is charging. This bulletin involves replacing the BCIM.
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
18-003-232023-02-13. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SERVICE BRAKES, HYDRAULIC; ENGINE AND ENGINE COOLING; POWER TRAIN; FUEL SYSTEM, GASOLINE; PARKING BRAKE; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Flash: Powertrain Control Module (PCM) 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: **P016F - Closed Loop Fuel Pressure Control At Limit - Pressure Too Low. P025C - Fuel Pump Module Control Circuit Low. P208B - Reductant Pump 1 Control Performance. P0300-00 - Multiple Cylinder Misfire (MIL Illuminated During 4WD-LO Only). P0301-00 - Cylinder 1 Misfire (MIL Illuminated During 4WD-LO Only). P0302-00 - Cylinder 2 Misfire (MIL Illuminated During 4WD-LO Only). P0303-00 - Cylinder 3 Misfire (MIL Illuminated During 4WD-LO Only). P0304-00 - Cylinder 4 Misfire (MIL Illuminated During 4WD-LO Only). P0305-00 - Cylinder 5 Misfire (MIL Illuminated During 4WD-LO Only). P0403-00 - EGR Control Circuit Open ? Disabled Fault.** P225D-00 - NOX Sensor 1/1 Performance Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance Bank 1. P200B-00 - Intake Manifold Runner Performance Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P0534-00 - AC Refrigerant System A Charge Loss. P04DB-00 - Crankcase Ventilation System Disconnected. P204F-00 - Reductant System Performance. P2199-00 - Intake Air Temperature Sensor 1/2 Correlation. P0087-00 - Fuel Rail Pressure Too Low (with rapid apply and release of accelerator pedal). P0306-00 - Cylinder 6 Misfire. P01CB-00 - Cylinder 1 Injection Timing Performance Over Retarded. P01CC-00 - Cylinder 1 Injection Timing Performance Over Advanced. P01CD-00 - Cylinder 2 Injection Timing Performance Over Retarded. P01CE-00 - Cylinder 2 Injection Timing Performance Over Advanced. P01CF-00 - Cylinder 3 Injection Timing Performance Over Retarded. P01D0-00 - Cylinder 3 Injection Timi
08214222023-01-23. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; ELECTRICAL SYSTEM. Radio Over The Air Updates to JR34.3/JR34.4 and JR34.41
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
21024212023-01-17. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience one or both of the following conditions: A Malfunction Indicator Lamp (MIL) event or failure with no Diagnostic Trouble Codes (DTCs) and the vehicle has less than 644 km (400 miles) on the odometer indicates it is likely the vehicle has experienced an unintentional code clear event.
S21180000112023-01-17. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. Diagnostic Trouble Code (DTC) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.
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
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).
18049212023-01-17. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION; SERVICE BRAKES; FUEL SYSTEM, GASOLINE. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1/1 Performance - Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P00AF-00 -Turbocharger Boost Control Module "A" Performance. P0106-00 - Manifold Absolute Pressure Sensor Performance. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P0087-00 - Fuel Rail Pressure Too Low (with rapid apply and release of accelerator pedal). P015E-00 - Excessive Time To Enter Closed Loop Fuel Timing Control. P01CB-00 - Cylinder 1 Injection Timing Performance - Over Retarded. P01CC-00 -
S21180000062023-01-17. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
9004376-12023-01-17. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:PUMP. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
S2008000103RevA2023-01-09. Service bulletin. ELECTRICAL SYSTEM. No Start, Stop Start Inoperative, Battery or Check Engine Light (CEL) Illuminated
S2108000056RevD2023-01-09. Service bulletin. ELECTRICAL SYSTEM. U0111-00 Lost Communication With Battery Energy Control Module Set In The HCP. BPCM Offline, Multiple Low Voltage DTC?s.
S2208000020RevA2023-01-09. Service bulletin. ELECTRICAL SYSTEM. Electric Mode Temporarily Unavailable, Cluster Message Displayed Vehicle in Fuel Oil Refresh Mode (FORM)
S22080001442023-01-09. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Front Park Sensors Not Providing Warning After a Recent Service Repair
18013202023-01-09. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs) have been set:P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected
S20080001032023-01-09. Service bulletin. ELECTRICAL SYSTEM. No Start, High Current Fuse Array (HCFA) Location And Testing
18053222023-01-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following (DTCs) have been set: P2172 - High Airflow/Vacuum Leak Detected (Instantaneous Accumulation). P0441 - EVAP Purge System Performance. P0607 - ECU Internal Performance. P0506 - Idle Speed Performance Lower Than Expected
18049222023-01-09. Service bulletin. BACK OVER PREVENTION; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following (DTC): P0441- EVAP Purge System Performance. The customer may comment on one or more of the following: Abnormal Engine noise heard periodically. This noise is caused by Variable Valve Timing (VVT) cleaning cycle. A misfire condition with no Malfunction Indicator Lamp (MIL) illuminationor Diagnostic Trouble Codes (DTCs) set. In addition, the following software enhancements are available: Updates to include misfire DTCs.
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.