WenmarOpen by Wenmar Pro

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
S21080001212023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. Check Engine Light On And Service Hybrid System Displayed. P0A0A-00 High Voltage System Interlock Circuit ?A? Is Active
S20080000102023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
S21080001222023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. PHEV Parameters Are Not Showing Up On Mobile App
S21080001202023-01-17. Service bulletin. EQUIPMENT:ELECTRICAL. Radio Volume Uncontrollable Or Changing On Its Own
S21080001182023-01-17. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES. Power Mirrors Are Inoperative
S21080001162023-01-17. Service bulletin. BACK OVER PREVENTION:SOFTWARE. Max Regeneration Does Not Remain On After Vehicle Is Restarted
S21140000022023-01-17. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT:ELECTRICAL. CEL (Check Engine Lamp) On Shortly After Filling Vehicle
S21080000982023-01-17. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. Radio Screen Freeze, Blank Screen And Reset
S21240000062023-01-17. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Customer Indicates The AC Compressor Is Loud At Times.
S20230000112023-01-17. Service bulletin. BACK OVER PREVENTION; VISIBILITY; VEHICLE SPEED CONTROL. Wind Noise And Or Gap At Front Door Mirror Flag
S21230000292023-01-17. Service bulletin. BACK OVER PREVENTION. Squeak and or Chirp Noise From Lift Gate Glass
S21080001022023-01-17. Service bulletin. BACK OVER PREVENTION. Reverse Camera System Unavailable Message, Blue Screen Showing On Radio Display
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.
90043752023-01-17. Service bulletin. BACK OVER PREVENTION. RADIO, MULTI Media (ASSY) The customers may have concerns of backup camera missing gridlines or showing black screen with "check entire surroundings" message while in Reverse mode. It is a backup camera initialization timing issue. Please check the backup camera and connections. This issue is recoverable with a key cycle. Replacing the radio head unit will not resolve the customer's concerns. FOTA service software release is scheduled for later June, 2021.
18-051-22 REV. B2023-01-17. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; POWER TRAIN. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). ? U0402-00 - Implausible Data Received From TCM. ? U145D - Implausible Data Received From TCM On D-PT. **Customers may experience one or more of the following: ? Vehicle may not be able to enter electric mode driving while Fuel Oil Refresh Mode (FORM) is active. ? FORM staying on too long.** Other software enhancement included with this update: ? On Board Fuel Consumption Monitoring Updates (China Only). This bulletin involves reprogramming the PCM 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 PCM update: ? Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM). ? Transmission Control Module (TCM). ? Battery Pack Control Module (BPCM). ? Integrated Dual Charging Module (IDCM)
08-003-22 REV. A2023-01-17. Service bulletin. STEERING; EQUIPMENT:ELECTRICAL:INFOTAINMENT; BACK OVER PREVENTION. UAQ and UCQ Radio Enhancements Customers may experience one or more of the following: ? **Wi-Fi hotspot connection failure. ? Speaker popping, crackle noise during Voice Recognition (VR) response and navigation guidance. ? Mobile Station Integrated Services Digital Network (MSISDN) missing from radio, no connected services working.** ? Intermittent, black radio display screen (Rear View Camera (RVC) not affected). ? Intermittent, radio freezes (RVC not affected). ? Wireless connectivity pairing and/or connection issues. ? Lost radio presets. ? Radio channels change by itself. ? SXMT icon inoperative. ? SXMT favorite song not displaying/playing. ? Incorrect navigation address/location/directions. ? Backup camera has black display screen or only displays Check Entire Surroundings with black screen (occurs when vehicle is shifted immediately to reverse upon key-on before RVC signal is received, recoverable with key cycle) . ? High pitch chime noise. ? Contact list not loading. ? Device not supported message. ? Remote app inoperative. ? Travel-Link fuel price incorrect. ? Backup camera gridlines missing. ? Unable to adjust volume. In addition, the following enhancement are included in this update: ? Enables map updates. ? Heavy Duty (HD) Truck USB HUB improvements. ? HD Truck heated steering wheel improvements This bulletin involves inspecting and if required, updating the radio software level to 40.1. Depending on the radio?s current software level the radio may need a one or two USB update.
31-002-222023-01-17. Service bulletin. STRUCTURE. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates. NOTE: Digital imaging pre authorization is required for Smart Warranty Base dealers or Pre Approval is required from Regional Office depending on market. This bulletin involves inspecting and if necessary removing corrosion and refinishing the suspect aluminum panels on the vehicle, hood, door, fenders, hinges, swing gates or liftgate panels.
S22080002052023-01-17. Service bulletin. ENGINE AND ENGINE COOLING. Three Way Coolant Valve Hoses Misrouted. P0E80-00-Coolant Bypass Valve "B" Control Stuck Closed
S22080002032023-01-17. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. P0E15-00 Hybrid/Ev Battery Pack Coolant Heater "A" Control Performance Active After High Voltage (HV) Module Updates
S22080001992023-01-17. Service bulletin. ELECTRICAL SYSTEM. Avoid Failure Of High Voltage Battery Pack When Performing Flashes
91001152023-01-17. Service bulletin. ELECTRICAL SYSTEM. Integrated Dual Charging Module Before replacing the IDCM part please follow the appropriate service procedure for DTC P0D27, ensure to clear the codes and perform a charging test. If the codes come back again, proceed with the replacement.
31001222023-01-09. Service bulletin. STRUCTURE. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
1400522REVB2023-01-09. Service bulletin. FUEL SYSTEM, GASOLINE. Updated Fuel Filler Cap This bulletin involves updating the fuel filler cap with improved version. 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: P0455 - EVAP System Large Leak. P0456 - EVAP System Small Leak. P04EC - EVAP System Large Leak Detected - Fuel Tank Side. P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side.
0805422REVB2023-01-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Flash: Battery Pack Control Module (BPCM) Diagnostic and System Updates This bulletin involves updating the BPCM with the latest available software. 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. Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update:Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM). Transmission Control Module (TCM). Powertrain Control Module (PCM). Integrated Dual Charging Module (IDCM).

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