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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.

By type

By component

By trouble code

Bulletins, newest first
90040022020-04-06. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; VISIBILITY. SWITCH, Power Window For concern of rear windows INOP from the rear window switch, please contact FCA Redacted Content before replacing the part. If no response in 15 minutes, proceed with repair.
90041902020-04-06. Service bulletin. SEATS; VEHICLE SPEED CONTROL. FRAME, Front Seat Cushion For all 2 door JL vehicles, if the front driver or passenger seat is stuck in the folded (EZ entry) position or it won't return to normal seating position, review SB 23-020-19 prior to replacing the seat frame.
08-128-192020-01-21. Service bulletin. EQUIPMENT. UJQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to:22.5 Without Digital Audio Broadcasting (Sales Code RS9). 21.10 With RS9. Customers may experience one or more of the following: Arabic language is missing (Without RS9). Navigation inoperable (Without RS9). Bottom menu bar of the radio is non responsive or frozen (Without RS9). After viewing the weather map following a flood advisory popup, the main soft key's at the bottom of the screen may not respond when pressed (Without RS9). Radio will not turn off (Without RS9). Poor AM/FM Reception (Without RS9). Uconnect Live feature may not function properly (EMEA only). Radio may reset, turn off and then back on. Radio display screen freezes. Can freeze in any mode: navigation, audio or backup camera. Audio distortion heard during phone calls and CarPlay®. Rear View Camera (RVC) display screen turns blue or green.
08-122-192020-01-21. Service bulletin. STEERING. Additional Repair Steps After the Steering Gear or Pump was Replaced This bulletin will help to determine if additional repair steps are needed for the steering gear or Electric Hydraulic Power Steering (EHPS) pump replacement.If the EHPS software is updated and the sales code is added without steering gear replacement, this will cause undesirable steering feel. A customer or technician has replaced the steering gear or EHPS pump, for any reason.
08-120-192020-01-21. Service bulletin. EQUIPMENT. UGQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 28.31. Customers may experience one or more of the following: Navigation screen freezes after a Voice Recognition (VR) command. Warning chime will not turn off. Radio display black, except application bar. Language setting reverting from customer set language to Italian language. Message displayed ?TomTom® live services unavailable?. Frequent pop-ups during startup saying device not connected - Uconnect LIVE. Uconnect Live feature may not function properly. Radio may reset, turn off and then back on. Audio distortion heard during phone calls and CarPlay®. In addition the following enhancements are included:Bluetooth® improvements. VR improvements. Russian language enhancements.
18-034-19 REV. A2020-01-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. 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 the following DTCs:P061A - Level 2 Torque Performance. P0507 - Idle Speed Performance Higher Than Expected. P0456 - EVAP System Small Leak. 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.
90041942020-01-21. Service bulletin. LATCHES/LOCKS/LINKAGES. Latch, Quarter Window, Power Sliding Roof Prior to ordering this part for customers that complain about a buzz, squeak, or rattle, please reference the repair information in the service library. Latch rattles can be repaired by applying UHMW tape to the receiver.
90040222020-01-21. Service bulletin. SUSPENSION. Air Suspension Components Star Parts Catalog has been updated to show individual service parts for the compressor assembly. This will allow service technicians to repair the root cause without over repairing the system. Replace only the part deemed failed by the diagnostics performed. Individual parts include: - Compressor - Valve block - Individual hoses - Temp sensor - Shield - Air line clips NOTE: in most situations when a new compressor is needed, the compressor as a separate part is the correct repair, and the assembly would not be required.
90041902020-01-21. Service bulletin. SEATS. FRAME, Front Seat Cushion For all 2 door JL vehicles, if the front driver or passenger seat is stuck in the folded (EZ entry) position or it won't return to normal seating position, please call Ajay Sharma (646) 236-2413 prior to any repairs or teardown. If no response in 15 minutes, proceed with repair.
90041712020-01-21. Service bulletin. ENGINE AND ENGINE COOLING. COVER, Cylinder Head, Left/Right Prior to replacing the cylinder head cover on ANY 3.6L Pentastar Upgrade Engine, verify that there are no steel dowel pins pressed into the cylinder head. If dowels are present in the cylinder head please remove carefully without touching/damaging the cylinder head sealing surface.
08-001-19 REV. B2019-12-16. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. UAQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 28.3. Customers may experience one or more of the following:Application bar displays but the screen is black. Continuous chimes from the radio. Voice Recognition (VR) not recognizing voice. Bluetooth connection issues. Navigation screen freezes after a VR command. Intermittent operation of the remote services after vehicle has been turned off for 30 minutes or more. Off road App is missing. Rear View Camera (RVC) display screen turns blue or green. Audio quality Improvement in hands-free calling using Car Play, Android Auto or Bluetooth. Radio will continuously reset with the Jeep splash screen. Radio intermittently resetting or not booting up. Intermittent operation of the vehicle finder app. App icons at the bottom of the display freezes, touch screen will not respond. Radio may reset, turn off and then back on. Audio distortion heard during phone calls and CarPlay. In addition, the following enhancements are also included in this update:Bluetooth improvements. VR improvements.
31-005-192019-12-16. Service bulletin. EQUIPMENT; STRUCTURE. Use of Aftermarket Parts This bulletin involves discussing FCA US LLC position with regard to collision repair industry awareness regarding the use of aftermarket parts.
19-002-192019-12-16. Service bulletin. STEERING. Shimmy In The Steering Wheel After Hitting An Irregularity On The Road Surface This bulletin involves discussing an available video instructing the technicians on how to properly diagnosis and repair this issue.
31-004-192019-12-16. Service bulletin. VISIBILITY. Authentic Mopar® Glass Replacement This bulletin involves discussing FCA US LLC position with regard to collision repair industry awareness regarding the recommended usage of Authentic Mopar® Glass.
18-092-192019-12-16. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technicianmay find one or more of the following Diagnostic Trouble Codes (DTCs):P06EF - Engine Restart 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. Customers may experience one or more of the following:Excessive blower fan noise when the A/C is on MAX output. Intermittentrough idle or idle surging, when coming to a stop(Automatic transmission equipped vehicles only). Random Electronic Stability Control (ESC) lamp illuminates in the InstrumentPanel Cluster (IPC). Driving at vehicle speeds while in first gear and shifting into neutral, amessage "Shift to 1st gear not allowed" message appears in the Electronic Vehicle Information Center (EVIC) when conditions are not met(Manual transmission equipped vehicles only). 3 km (2 mph) difference between cruise set speed versus actual displayspeed. During cold vehicle operation and the use of cruise control on vehicles equipped with an automatic transmission, the engine RPMs may dropbelow idle speed while cruise control is engaged, this may occur if the customer presses the accelerator pedal to achieve a vehicle speedgreater than the cruise control speed and then releasing it. Radio or IPC may reboot (flash off/flash on) during an Engine Stop Start(ESS) shutdown in cold conditions with a battery temperature below -12°C (10°F).
18-089-192019-12-16. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
D-19-242019-12-16. Service bulletin. VISIBILITY. DIPAP Requirements - Addition of Wrangler (JL) Rear Flipper Glass Replacement - All Dealers
V41 REV62019-12-16. Service bulletin. STEERING. Revised Customer Satisfaction Notification V41 Steering Damper
90040662019-12-16. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. WIRING KIT, Enclosure (Mopar JL hard top conversion accessory kit) The HVAC control panel requires replacement when GTP sales code is present to restore rear defrost function. The switch is not provided in this kit and a service replacement part must be ordered. See service information procedure for switch replacement and below chart for replacement part numbers. vehicle has GTP+BNH+HAA replace HVAC control with pn 6BE36TRMAC vehicle has GTP+BNH-HAA replace HVAC control with pn 6BE37TRMAC vehicle has GTP+HAA-BNH replace HVAC control with pn 6BE40TRMAC vehicle has GTP-HAA-BNH replace HVAC control with pn 6BE41TRMAC Please ensure that the proper color code is used in place of the part TRM designation. For any questions call John Altsman at (248) 512-9361.
90041662019-12-16. Service bulletin. STEERING; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. DAMPER, Steering Additional service procedure steps after replacing the steering damper: Verify the correct orientation of the steering damper. With the vehicle on the ground, it is required to turn the steering wheel for five lock to lock turns ( ?Full Left ? Full Right ? Center? OR ?Full Right ? Full Left ? Center? counted as 1) at 1 rotation/sec to prime the steering damper and purge out the air. NOTE: It is important to prime the new damper by rotating the steering wheel five full lock to lock turns to purge any trapped air out.
90040172019-12-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; EQUIPMENT; BACK OVER PREVENTION. CAMERA, Rear View For concerns of back up camera flicker/blank/blue/black screen or camera inop, please ensure Radio is at latest software level. After update, system requires three sleep cycles to function properly. Please verify camera LVDS cable connection at camera and radio head unit. Also verify harness connection between high mounted stop lamp and body harness for bent pins or loose connection at XY310A, XY485A. Please create and send a copy of the vehicle scan report and specify radio SW version and radio head unit ID to Bing Guo and Rafay Adil via email bingruo.guo@fcagroup.com (248) 500-7355 rafay.adil@fcagroup.com (248) 736-7059 Please call for any additional questions or assistance needed. If no response in 15 minutes, proceed with repair. Please be sure to attach a copy of the Vehicle Scan Report on the repair order.
08-002-19 REV. A2019-12-02. Service bulletin. EQUIPMENT. UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 28.3. Customers may experience one or more of the following:Radio will continuous reset with the Jeep splash screen. App icons at the bottom of the display freezes, touch screen will not respond. Radio may reset, turn off and then back on. Audio distortion heard during phone calls and CarPlay®. Rear View Camera (RVC) display screen turns blue or green. Off Road App is missing. In addition, the following enhancements are included in this update:Bluetooth® improvements. Voice Recognition (VR) improvements.
08-001-19 REV. A2019-12-02. Service bulletin. EQUIPMENT. UAQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 28.3. Customers may experience one or more of the following:Radio will continuous reset with the Jeep splash screen. App icons at the bottom of the display freezes, touch screen will not respond. Radio may reset, turn off and then back on. Audio distortion heard during phone calls and CarPlay®. Rear View Camera (RVC) display screen turns blue or green. Off Road App is missing. In addition, the following enhancements are included in this update:Bluetooth® improvements. Voice Recognition (VR) improvements.
V41 REV42019-12-02. Service bulletin. STEERING. Revised Customer Satisfaction Notification V41 ? Steering Damper
90041422019-12-02. Service bulletin. STRUCTURE. DOOR, Assembly (Front or Rear) For concern of flag nut not aligned to hole, use a blunt tool and lightly tap on the flag nut to knock it loose from e-coat that has dried it in place.

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