Jeep Wrangler Service Bulletins (2018)

717 manufacturer communications on file.

• May 7, 2021•Document ID: 10223411

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:HATCHBACK/LIFTGATE; VISIBILITY:GLASS, SIDE/REAR

  Mfr Comm. #:

  S2123000029

  Date Added:

  October 17, 2022

  Manufacturer:

  JEEP

  Summary

  Squeak and or Chirp Noise From Lift Gate Glass

  Associated Products (4)

  2021 Jeep Wrangler2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10223411-0001.pdf↗
• May 7, 2021•Document ID: 10223251

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:HATCHBACK/LIFTGATE

  Mfr Comm. #:

  S2123000029

  Date Added:

  October 17, 2022

  Manufacturer:

  JEEP

  Summary

  Squeak and or Chirp Noise From Lift Gate Glass

  Associated Products (4)

  2021 Jeep Wrangler2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10223251-0001.pdf↗
• May 7, 2021•Document ID: 10198345

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  S2123000029

  Date Added:

  June 28, 2021

  Manufacturer:

  JEEP

  Summary

  Squeak and or Chirp Noise From Lift Gate Glass

  Associated Products (4)

  2021 Jeep Wrangler2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10198345-0001.pdf↗
• May 3, 2021•Document ID: 10230082

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  74244

  Date Added:

  January 17, 2023

  Manufacturer:

  RAM

  Summary

  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)

  Associated Products (7)

  2021 Jeep Wrangler2021 Ram 15002020 Jeep Wrangler2020 Ram 15002019 Jeep Wrangler2019 Ram 15002018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10230082-0001.pdf↗
• May 3, 2021•Document ID: 10223470

  Service Bulletin/Repair Instructions
  POWER TRAIN; POWER TRAIN:DRIVELINE:HYDRAULIC:MOTOR/PUMP

  Mfr Comm. #:

  74244

  Date Added:

  October 17, 2022

  Manufacturer:

  JEEP

  Summary

  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)

  Associated Products (7)

  2021 Jeep Wrangler2021 Ram 15002020 Jeep Wrangler2020 Ram 15002019 Jeep Wrangler2019 Ram 15002018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10223470-0001.pdf↗
• May 3, 2021•Document ID: 10223310

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  74244

  Date Added:

  October 17, 2022

  Manufacturer:

  RAM

  Summary

  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)

  Associated Products (7)

  2021 Jeep Wrangler2021 Ram 15002020 Jeep Wrangler2020 Ram 15002019 Jeep Wrangler2019 Ram 15002018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10223310-0001.pdf↗
• May 3, 2021•Document ID: 10198404

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  74244

  Date Added:

  June 28, 2021

  Manufacturer:

  JEEP

  Summary

  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)

  Associated Products (7)

  2021 Jeep Wrangler2021 Ram 15002020 Jeep Wrangler2020 Ram 15002019 Jeep Wrangler2019 Ram 15002018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10198404-0001.pdf↗
• April 29, 2021•Document ID: 10221225

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  0807021

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  ULQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 34.2. If the software update is performed on a radio with software below 19.9, the radio could be damaged and will need to be replaced. Customers may experience one or more of the following:Lost radio presets. Radio display screen is black when the ignition is on. Radio may reset, turn itself off and then back on again. Park assist chime will continue to chime after the vehicle is turn off. Radio will display the incorrect speed limit in kph when approaching a road speed camera. In addition the following enhancements are included:Voice Recognition (VR) and Bluetooth® improvements. Improvements for Off-road pages.

  Associated Products (12)

  2020 Jeep Cherokee2020 Jeep Compass2020 Jeep Renegade2020 Jeep Wrangler2019 Jeep Cherokee2019 Jeep Compass2019 Jeep Renegade2019 Jeep Wrangler2018 Jeep Compass2018 Jeep Grand Cherokee2018 Jeep Renegade2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221225-0001.pdf↗
• April 29, 2021•Document ID: 10194078

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-070-21

  Date Added:

  May 24, 2021

  Manufacturer:

  JEEP

  Summary

  ULQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to 34.2. If the software update is performed on a radio with software below 19.9, the radio could be damaged and will need to be replaced. Customers may experience one or more of the following:Lost radio presets. Radio display screen is black when the ignition is on. Radio may reset, turn itself off and then back on again. Park assist chime will continue to chime after the vehicle is turn off. Radio will display the incorrect speed limit in kph when approaching a road speed camera. In addition the following enhancements are included:Voice Recognition (VR) and Bluetooth® improvements. Improvements for Off-road pages.

  Associated Products (12)

  2020 Jeep Cherokee2020 Jeep Compass2020 Jeep Renegade2020 Jeep Wrangler2019 Jeep Cherokee2019 Jeep Compass2019 Jeep Renegade2019 Jeep Wrangler2018 Jeep Compass2018 Jeep Grand Cherokee2018 Jeep Renegade2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10194078-0001.pdf↗
• April 23, 2021•Document ID: 10221160

  Service Bulletin/Repair Instructions
  STRUCTURE; EQUIPMENT

  Mfr Comm. #:

  S2023000020

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Tick Noise From A-pillar Front Power Top Side Rail

  Associated Products (4)

  2021 Jeep Wrangler2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221160-0001.pdf↗
• April 23, 2021•Document ID: 10194013

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; POWER TRAIN

  Mfr Comm. #:

  S2023000020 Rev.

  Date Added:

  May 24, 2021

  Manufacturer:

  JEEP

  Summary

  Tick Noise From A-pillar Front Power Top Side Rail

  Associated Products (4)

  2021 Jeep Wrangler2020 Jeep Wrangler2019 Jeep Wrangler2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10194013-0001.pdf↗
• April 22, 2021•Document ID: 10221208

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  08055211

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Key FOBIK Shortage and Restriction This bulletin is to inform customers, FOBIKs will be on restriction due to a temporary semi conductor shortage. Key FOBIKs to service customer vehicles are limited to customer vehicles which are inoperable and a spare FOBIK is not available.

  Associated Products (9)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 15002020 Jeep Gladiator2020 Jeep Wrangler2020 Ram 15002019 Jeep Wrangler2019 Ram 15002018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221208-0001.pdf↗
• April 22, 2021•Document ID: 10194061

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  08-055-21 REV. A

  Date Added:

  May 24, 2021

  Manufacturer:

  JEEP

  Summary

  Key FOBIK Shortage and Restriction This bulletin is to inform customers, FOBIKs will be on restriction due to a temporary semi conductor shortage. Key FOBIKs to service customer vehicles are limited to customer vehicles which are inoperable and a spare FOBIK is not available.

  Associated Products (9)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 15002020 Jeep Gladiator2020 Jeep Wrangler2020 Ram 15002019 Jeep Wrangler2019 Ram 15002018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10194061-0001.pdf↗
• April 17, 2021•Document ID: 10221154

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2008000113

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle, Intermittent Key Not Detected Message

  Associated Products (150)

  2021 Alfa Romeo Stelvio2021 Chrysler 3002021 Chrysler Pacifica2021 Dodge Challenger2021 Dodge Charger2021 Dodge Durango2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 55002020 Alfa Romeo Stelvio2020 Chrysler 3002020 Dodge Challenger2020 Dodge Charger2020 Dodge Durango2020 Dodge Journey+ 130 more
  Associated Documents

  • DownloadMC-10221154-0001.pdf↗
• April 17, 2021•Document ID: 10221153

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  S1608000226

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  Battery Tester Warranty Code Procedures, Midtronics Charger Update Process

  Associated Products (180)

  2021 Alfa Romeo Stelvio2021 Chrysler 3002021 Chrysler Pacifica2021 Chrysler Voyager2021 Dodge Challenger2021 Dodge Charger2021 Dodge Durango2021 Fiat 500X2021 Jeep Cherokee2021 Jeep Compass2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Grand Wagoneer2021 Jeep Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500+ 160 more
  Associated Documents

  • DownloadMC-10221153-0001.pdf↗
• April 17, 2021•Document ID: 10194007

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  S2008000113 Rev.

  Date Added:

  May 24, 2021

  Manufacturer:

  DODGE

  Summary

  No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle, Intermittent Key Not Detected Message

  Associated Products (141)

  2021 Alfa Romeo Stelvio2021 Chrysler 3002021 Chrysler Pacifica2021 Dodge Challenger2021 Dodge Charger2021 Dodge Durango2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002020 Alfa Romeo Stelvio2020 Chrysler 3002020 Dodge Challenger2020 Dodge Charger2020 Dodge Durango2020 Dodge Journey2020 Jeep Cherokee+ 121 more
  Associated Documents

  • DownloadMC-10194007-0001.pdf↗
• April 16, 2021•Document ID: 10221152

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  S16080002261

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Battery Tester Warranty Code Procedures, Medtronic Update Process

  Associated Products (180)

  2021 Alfa Romeo Stelvio2021 Chrysler 3002021 Chrysler Pacifica2021 Chrysler Voyager2021 Dodge Challenger2021 Dodge Charger2021 Dodge Durango2021 Fiat 500X2021 Jeep Cherokee2021 Jeep Compass2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Grand Wagoneer2021 Jeep Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500+ 160 more
  Associated Documents

  • DownloadMC-10221152-0001.pdf↗
• April 16, 2021•Document ID: 10221150

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  S1821000001

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders

  Associated Products (251)

  2021 Alfa Romeo Stelvio2021 Chrysler 3002021 Chrysler Pacifica2021 Chrysler Voyager2021 Dodge Challenger2021 Dodge Charger2021 Dodge Durango2021 Fiat 500X2021 Jeep Cherokee2021 Jeep Compass2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Grand Wagoneer2021 Jeep Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500+ 231 more
  Associated Documents

  • DownloadMC-10221150-0001.pdf↗
• April 15, 2021•Document ID: 10221200

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM; BACK OVER PREVENTION; EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  1803621

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  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.

  Associated Products (1)

  2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221200-0001.pdf↗
• April 15, 2021•Document ID: 10194053

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; SERVICE BRAKES

  Mfr Comm. #:

  18-036-21

  Date Added:

  May 24, 2021

  Manufacturer:

  JEEP

  Summary

  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.

  Associated Products (1)

  2018 Jeep Wrangler
  Associated Documents

  • DownloadMC-10194053-0001.pdf↗