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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

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
91000102022-10-31. Service bulletin. POWER TRAIN:AXLE ASSEMBLY; WHEELS; BACK OVER PREVENTION. Axle Assembly A parts kit (SENSOR KIT, Axle: 68544629A$) is available to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This parts kit must be used when only the Axle Locker Sensor fails. Do not replace the axle for sensor failure.
S2003000001RevE2022-10-31. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Noise From The Front Axle Area Over Bumps
91000102022-10-31. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Axle Assembly A parts kit (SENSOR KIT, Axle: 68544629A$) is available to repair the Axle Locker Sensor on JL/JT equipped with the M210 and M220 Tru-Lok axles (DSE). This parts kit must be used when only the Axle Locker Sensor fails. Do not replace the axle for sensor failure.
0807420E2022-10-17. Service bulletin. STEERING; POWER TRAIN. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, checking sales codes and performing vehicle reconfig, if required.Review and perform all steps necessary to complete the Repair Procedure. If any steps are missed this may lead to undesired handling characteristics. The customer may describe one or more of the following:Steering wander. Vehicle has a lead/pull to the right or left.The lead/pull will be more noticeable in hot ambient temperatures. Steering feels like it has excessive play.This Technical Service Bulletin (TSB) repair will NOT correct a sustained steering shake, shimmy or vibration. Video aid has been developed for this issue. Refer to the detailed service procedures available in DealerConnect>Service Library under: Service Info>19 - Steering / Linkage / Damper, Steering /Removal and Installation.
08074202022-10-17. Service bulletin. POWER TRAIN; STEERING. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, checking sales codes and performing vehicle reconfig, if required.Review and perform all step necessary to complete the Repair Procedure. If any steps are missed this may lead to undesired handling characteristics. The customer may describe one or more of the following:Steering wander. Vehicle has a lead/pull to the right or left.The lead/pull will be more noticeable in hot ambient temperatures. Steering feels like it has excess play.This Technical Service Bulletin (TSB) repair will NOT correct a sustained steering shake, shimmy or vibration. Video aid has been developed for this issue. Refer to the detailed service procedures available in DealerConnect>Service Library under: Service Info>19 - Steering / Linkage / Damper, Steering /Removal and Installation.
S19080001022022-10-17. Service bulletin. POWER TRAIN. (Rev. A) Power Inverter Load Ratings
90043352022-10-17. Service bulletin. POWER TRAIN. Turbocharger If the turbo is being replaced for an oil leak concern, please inspect the area around the turbo oil feed o-ring for a leak. The o-ring is serviced separately and complete turbo replacement may not be necessary.
18103202022-10-17. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find oneor more of the following Diagnostic Trouble Codes (DTCs).P0369 - Camshaft Position Sensor Intermittent - Bank 1 Sensor 2. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0344 - Camshaft Position Sensor Intermittent. P0390 - Camshaft Position Sensor Circuit - Bank 2 Sensor 2. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1. P0365 - Camshaft Position Sensor Circuit - Bank 1 Sensor 2. P0345 - Camshaft Position Sensor Circuit - Bank 2 Sensor 1. P0349 - Camshaft Position Sensor Intermittent - Bank 2 Sensor 1. P0394 - Camshaft Position Sensor Intermittent - Bank 2 Sensor 2. Customers may experience the following:Hard launch and an increase in engine RPM, when shifting from park to drive.(automatic transmission vehicles only). Engine RPM increase at startup and/or between shifts(manual transmission vehicles only).
0807420REVC2022-10-17. Service bulletin. POWER TRAIN; STEERING. Improved Steering Feel This bulletin involves replacing the steering gear and updating the Electric Hydraulic Power Steering (EHPS) software, checking sales codes and performing vehicle reconfig, if required.Review and perform all step necessary to complete the Repair Procedure. If any steps are missed this may lead to undesired handling characteristics. The customer may describe one or more of the following:Steering wander. Vehicle has a lead/pull to the right or left.The lead/pull will be more noticeable in hot ambient temperatures. Steering feels like it has excess play.This Technical Service Bulletin (TSB) repair will NOT correct a sustained steering shake, shimmy or vibration. Video aid has been developed for this issue. Refer to the detailed service procedures available in DealerConnect>Service Library under: Service Info>19 - Steering / Linkage / Damper, Steering /Removal and Installation.
03003222022-10-17. Service bulletin. POWER TRAIN. Front or Rear Axle Sensor Kit
18014202022-10-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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: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. Software enhancements also included in this update:Electric Vacuum Pump (EVP) update. Fan noise reduction. Low Speed Pre Ignition (LSPI) update.
S17210000162022-10-17. Service bulletin. POWER TRAIN. Service 4wd Light On, Message AWD System Service Required
742442022-10-17. Service bulletin. POWER TRAIN:DRIVELINE:HYDRAULIC:MOTOR/PUMP; POWER TRAIN. Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
742442022-10-17. Service bulletin. POWER TRAIN. Warranty Bulletin D-20-23 Part Order Restriction Program - 48V Power Pack Unit (PPU) - Select 2018 - 2021 Jeep Wrangler (JL) and 2019 - 2021 RAM (DT) (Rev. A)
S22080000732022-10-17. Service bulletin. POWER TRAIN. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
S22080000222022-10-17. Service bulletin. POWER TRAIN. No Crank, No Start, Battery Light On
S22230000012022-10-17. Service bulletin. POWER TRAIN; BACK OVER PREVENTION. Rattle Noise From Power Top Driving Over Bumps Or Rough Road
18018202022-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). 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.
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.
S2108000270RevA2022-09-26. Service bulletin. POWER TRAIN. Sky Slider Power Top Does Not Operate. New Power Top Motors Inoperative
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.
S18210000012022-09-26. Service bulletin. POWER TRAIN. Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders
90040092022-09-26. Service bulletin. POWER TRAIN. Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage. Vehicles built prior to 10/23/2015 requires Service Kit PN 68461214AA; includes Transmission Isolator PN 68264483AA, and Adaptation Bracket 68264479AA and Fastener Service Kit PN 68329056AA Vehicles built after on or after 10/23/2015 will require only the Fastener Service Kit PN 68329056AA. 2. All 3.6L/62TE equipped vehicles. If the vehicle you are repairing has a crack in the flex plate or failed pump bushing inspect and confirm that both (2) dowel pins are present in the engine block, which align the transmission center line to the crank shaft centerline and visually inspect the dowel alignment holes in the transmission case. If the holes are damaged or elongated the transmission should be replaced to prevent further damage to the transmission/flexplate or pump bushing due to the inability to properly align the engine to the transmission during the repair. 3. All 62TE equipped vehicles. If pump bushing is scored or damaged and the dowel pin alignment holes are ok, replace the pump assembly as opposed to complete transmission. 4. All 62TE equipped vehicles. If vehicle is jerking/slipping with MIL code(s) P0740 or P2764, check TCC Solenoid operation. If TCC Solenoid is ok, the codes are indicative of a torque converter failure. Replace the torque converter.
S2003000001ReVD2022-09-26. Service bulletin. POWER TRAIN. Noise From Front Axle Area Over Bumps
S2019000005RevA2022-09-26. Service bulletin. STEERING; ELECTRICAL SYSTEM; POWER TRAIN; AIR BAGS. U0131 Lost Communication With Power Steering Control Module A DTC Active. EPS Light On.

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