WenmarOpen by Wenmar Pro

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

Only bulletins with component: Driver assistance are shown. Show all

Bulletins, newest first
90037042022-09-26. Service bulletin. SEATS; FUEL SYSTEM, GASOLINE; AIR BAGS; POWER TRAIN; BACK OVER PREVENTION; ENGINE AND ENGINE COOLING. Transmission Oil Pan, Heater (TMU), Tube or O-ring Applies to vehicles equipped with 8 speed transmissions only; if you have a leak that appears to be at the pan the use of proper leak detection is recommended. The fluid in the 8 speeds can be detected with a black light and there are aftermarket spray on leak detection materials to help ensure that the leak is properly diagnosed and not from another location such as cooler lines, heater tubes, or case porosity. Please note that the transmission pan gasket is available for many of the 8 speed applications FCA offers. Please review the available quick connect and transfer tube parts, as replacement of the TMU may not be required. If a TOC line connection is found to be the source, the quick connect may need replacement. If the leak source is coming from the connection of the TMU to the transmission, the transfer tube may need replacement. When parts are returned to the QEC the retaining clips (snap ring) for the quick disconnect fittings are missing. (This leaves a question as to whether the clips were missing from the assembly plant, or the technician removed them in order to make line removal easier.) Please return the clips with the transmission heater and note if they were not there to begin with. For any questions regarding transmission heater, contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.
S21080001842022-09-26. Service bulletin. LANE DEPARTURE; VISIBILITY. Cluster Warnings To Service SOS System, Service Air Bag System, Blind Spot Unavailable, Or Park Sense Not Available Messages
S228A000004RevB2022-09-26. Service bulletin. BACK OVER PREVENTION. Panasonic VP4R Wi-Fi New Enrollment Pause
S1908000122RevA2022-09-26. Service bulletin. LANE DEPARTURE. Air Bag Warning Lamp On, Service Air Bag Message Displayed On Cluster
18036212022-09-26. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; BACK OVER PREVENTION; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; 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 the technician may f Customers may comment on one or more of the following: Excessive fan noise when the A/C is on MAX output. Rough idle at engine start up in colder ambient temperatures. The following software enhancements are also included in this update : Electric Vacuum Pump (EVP) update. Fan noise reduction. Low Speed Pre Ignition (LSPI) update.
S21230000152022-09-26. Service bulletin. BACK OVER PREVENTION; VEHICLE SPEED CONTROL. Creak Tick Pop Noise From Door Or Doors
90040172022-09-26. Service bulletin. BACK OVER PREVENTION; VISIBILITY:REARVIEW MIRRORS/DEVICES. 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- Low-Voltage Differential Signaling 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 inlines. Please create and send a copy of the vehicle scan report and specify radio SW version and radio head unit ID toFCA Redacted Content or call FCA Redacted Content 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.
S22230000292022-09-26. Service bulletin. BACK OVER PREVENTION. Rattle Noise From Door
90040172022-09-15. Service bulletin. PARKING BRAKE; STRUCTURE; 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.
S1918000008RevC2022-09-15. Service bulletin. BACK OVER PREVENTION. Customer?s complaint may include a MIL-on with one or more of the following DTCs (Active, Pending, or Stored) in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 (Bank 1 downstream) O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.
S2108000184REVA2022-09-15. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION; AIR BAGS. Cluster Warnings To Service SOS System, Service Air Bag System, Blind Spot Unavailable, Or Park Sense Not Available Messages
08-017-212022-07-18. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Radio and Back-up Camera Enhancements This bulletin involves updating the radio software level to 1848.34. Customers may experience one or more of the following: Radio display screen flickers. Clock loses 6 seconds per day (JL with 5 inch screen). Green horizontal lines on back up display, in reverse (If this is the customer concern use camera LOP 18-60-02-Y7, on JL vehicles only). Ghost Touch, features, modes and App?s changing, without drivers input. Speaker pop noise when using Bluetooth® device. When vehicle is first started the radio will reset and the time display shows 12:00. Audio distortion and volume fluctuation. Blank rear camera image in reverse (If this is the customer concern use camera LOP 18-60-02-Y7 on JL vehicles only). Audio cutting in and out during memory recall. Ring tone too loud. AM/FM volume fluctuates. While in CarPlay® or AndroidAuto,® Google® maps showing wrong location. Phone disconnected after first call. Black screen or White screen with vertical lines. PIN clear and volume locked while KeySense is used. Audio static while in SXM/SAT modes. Echo heard during Bluetooth phone calls. The radio is locked up. The radio remains on after ignition has been turned off. The radio resets. The radio screen turns black. The radio screen shows messages ?Software Update? or ?Reinsert USB Device? and displays that screen in a continuous loop.
S19180000082022-05-31. Service bulletin. BACK OVER PREVENTION. Customer?s complaint may include a MIL-on with one or more of the following DTCs Active, Pending, or Stored in the PCM: P0133, P0137, P0171, P0300, P2096. The root cause could be due to oil leaking from Bank 1 valve cover seal on to the 1/2 Bank 1 downstream O2 sensor. This can adversely affect the 1/2 O2 sensor signal reading and lead to listed DTCs. Before performing normal diagnostic routines for the above codes, check for the condition listed above.
S21230000482022-05-31. Service bulletin. BACK OVER PREVENTION. Wind Whistle Noise From A Pillar Area At Highway Speed
S21230000792021-12-13. Service bulletin. STRUCTURE:BODY:DOOR; BACK OVER PREVENTION; VEHICLE SPEED CONTROL. Wind Noise And Or Water Leak From Door Seal Area
S21230000292021-06-28. Service bulletin. BACK OVER PREVENTION. Squeak and or Chirp Noise From Lift Gate Glass
18-036-212021-05-24. Service bulletin. FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; SERVICE BRAKES. 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 that one or more of the following DTCs have been set:P02EE - Cylinder 1 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02EF - Cylinder 2 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F0 - Cylinder 3 Injector Circuit Performance(APAC, EMEA and LATAM Only). P02F1 - Cylinder 4 Injector Circuit Performance(APAC, EMEA and LATAM Only). P2C90 - Crankcase Ventilation System - Hose "A" Disconnected(APAC, EMEA and LATAM Only). P04FC - Crankcase Ventilation System Performance(APAC, EMEA and LATAM Only). P2453 - Particulate Filter Pressure Sensor "A" Circuit Range/Performance(APAC and EMEA only equipped with Gas Particulate Filter(GPF)). P245F - Particulate Filter Pressure Sensor "B" Circuit Range/Performance(APAC and EMEA only equipped with Gas Particulate Filter (GPF)). P0456 - EVAP System Small Leak.If DTC P0456 is present use wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. P0171 - Fuel System 1/1 Lean(LATAM Only). P0172 - Fuel System 1/1 Rich(LATAM Only). P0128 - Thermostat Rationality(Sales Codes NA1 with NBQ or NB6 Only - APAC and EMEA Only). P050B - Cold Start Ignition Timing Performance(Sales Codes NA1 with NBQ or NB6 Only - APAC and EMEA Only). Customers may comment on one or more of the following:Excessive fan noise when the A/C is on MAX output. Rough idle at engine start up in colder ambient temperatures. The following software enhancements are also included in this update:Electric Vacuum Pump (EVP) update. Fan noise reduction. Low Speed Pre Ignition (LSPI) update.
S2023000020 Rev.2021-05-24. Service bulletin. BACK OVER PREVENTION; POWER TRAIN. Tick Noise From A-pillar Front Power Top Side Rail
S21080000932021-05-24. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION; EQUIPMENT. Apple CarPlay Does Not Work Or Not Connecting
S21230000202021-05-24. Service bulletin. BACK OVER PREVENTION; ENGINE AND ENGINE COOLING. A Buzz, Squeak, Rattle (BSR), Clicking Noise Heard From Left Side Of The Freedom Top.
08-045-212021-04-26. Service bulletin. LANE DEPARTURE. UGQ Radio Enhancements This bulletin involves inspecting and if required updating the radio software to:28.3 - 2018 MY 34.21 - 2020 MY Customers may experience one or more of the following: Intermittently, the radio screen will black out after key is turned on(For 34.21 Only). 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.
90040172021-04-26. Service bulletin. 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- Low-Voltage Differential Signaling 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 inlines. Please create and send a copy of the vehicle scan report and specify radio SW version and radio head unit ID toFCA Redacted Content or call FCA Redacted Content 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.
S21080000472021-03-15. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE. Jeep Off Road Pages Missing Latitude And Longitude Coordinates
08-017-212021-02-16. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. Radio and Back-up Camera Enhancements This bulletin involves updating the radio software level to 1848.34. Customers may experience one or more of the following: Radio display screen flickers. Clock loses 6 seconds per day (JL with 5 inch screen). Green horizontal lines on back up display, in reverse (If this is the customer concern use camera LOP 18-60-02-Y7, on JL vehicles only). Ghost Touch, features, modes and App?s changing, without drivers input. Speaker pop noise when using Bluetooth® device. When vehicle is first started the radio will reset and the time display shows 12:00. Audio distortion and volume fluctuation. Blank rear camera image in reverse (If this is the customer concern use camera LOP 18-60-02-Y7 on JL vehicles only). Audio cutting in and out during memory recall. Ring tone too loud. AM/FM volume fluctuates. While in CarPlay® or AndroidAuto,® Google® maps showing wrong location. Phone disconnected after first call. Black screen or White screen with vertical lines. PIN clear and volume locked while KeySense is used. Audio static while in SXM/SAT modes. Echo heard during Bluetooth phone calls. The radio is locked up. The radio remains on after ignition has been turned off. The radio resets. The radio screen turns black. The radio screen shows messages ?Software Update? or ?Reinsert USB Device? and displays that screen in a continuous loop.
S18080002842020-08-24. Service bulletin. LANE DEPARTURE: BLIND SPOT DETECTION; VISIBILITY. Power Mirrors And Door Locks Do Not Function. Blind Spot Alert Temporarily Unavailable Is Displayed On The EVIC

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