Jeep Wrangler Service Bulletins (2021)

1,032 manufacturer communications on file.

• July 27, 2021•Document ID: 10230217

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL

  Mfr Comm. #:

  S2118000011

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Diagnostic Trouble Code (DTC) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10230217-0001.pdf↗
• July 27, 2021•Document ID: 10221631

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR:INTEGRATED STARTER(OTHER THAN PROPULSION)

  Mfr Comm. #:

  S2118000011

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  Diagnostic Trouble Code (DTC) P049B ? EGR B Insufficient Flow Detected, Additional Diagnostics.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10221631-0001.pdf↗
• July 21, 2021•Document ID: 10230205

  Service Bulletin/Repair Instructions
  VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000172

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s

  Associated Products (2)

  2021 Jeep Gladiator2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10230205-0001.pdf↗
• July 21, 2021•Document ID: 10221619

  Service Bulletin/Repair Instructions
  VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000172

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Stop Start Feature Is Inoperative, MIL Lamp On, Hood Switch DTC?s

  Associated Products (2)

  2021 Jeep Gladiator2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221619-0001.pdf↗
• July 20, 2021•Document ID: 10230263

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

  Mfr Comm. #:

  0810021

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  UAQ UCQ UAV, UCX, UAX and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed, the software level will be 39.6.Review the table below to determine when the FOTA is due to be release. The release time is based on the current radio?s software application level. Customers may experience one or more of the following: Intermittently, when going into reverse, the rear view camera screen is blank. Intermittently, gridlines are not on the display screen when in reverse.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10230263-0001.pdf↗
• July 20, 2021•Document ID: 10221677

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  0810021REVA

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  UAQ UCQ UAV, UCX, UAX and UCV Radio Over The Air Software Version Updates This bulletin provides information regarding the latest Flash Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. Once the FOTA has been completed, the software level will be 39.6.Review the table below to determine when the FOTA is due to be release. The release time is based on the current radio?s software application level. Customers may experience one or more of the following: Intermittently, when going into reverse, the rear view camera screen is blank. Intermittently, gridlines are not on the display screen when in reverse.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10221677-0001.pdf↗
• July 19, 2021•Document ID: 10230204

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  S1925000008

  Date Added:

  January 17, 2023

  Manufacturer:

  RAM

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10230204-0001.pdf↗
• July 19, 2021•Document ID: 10221618

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  S1925000008

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10221618-0001.pdf↗
• July 17, 2021•Document ID: 10230259

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  2101021

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following on a vehicle with less than 644 km (400 miles) on the odometer: A Malfunction Indicator Lamp (MIL) event or failure withnoDiagnostic Trouble Codes (DTCs) and the vehicle has less than 644 km (400 miles) on the odometer indicates it is likely the vehicle has experienced an unintentional code clear event.Do not use this software update if vehicle odometer has over 644 km (400 miles).

  Associated Products (1)

  2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10230259-0001.pdf↗
• July 17, 2021•Document ID: 10221673

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM; EXTERIOR LIGHTING

  Mfr Comm. #:

  2101021

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience the following on a vehicle with less than 644 km (400 miles) on the odometer: A Malfunction Indicator Lamp (MIL) event or failure withnoDiagnostic Trouble Codes (DTCs) and the vehicle has less than 644 km (400 miles) on the odometer indicates it is likely the vehicle has experienced an unintentional code clear event.Do not use this software update if vehicle odometer has over 644 km (400 miles).

  Associated Products (1)

  2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221673-0001.pdf↗
• July 16, 2021•Document ID: 10230194

  Service Bulletin/Repair Instructions
  PARKING BRAKE

  Mfr Comm. #:

  S2108000170

  Date Added:

  January 17, 2023

  Manufacturer:

  RAM

  Summary

  Head unit button stuck DTC code B14DA-2A

  Associated Products (16)

  2021 Chrysler 3002021 Chrysler Pacifica2021 Chrysler Voyager2021 Dodge Challenger2021 Dodge Charger2021 Jeep Cherokee2021 Jeep Compass2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500
  Associated Documents

  • DownloadMC-10230194-0001.pdf↗
• July 16, 2021•Document ID: 10221608

  Service Bulletin/Repair Instructions
  PARKING BRAKE

  Mfr Comm. #:

  S2108000170

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Head unit button stuck DTC code B14DA-2A

  Associated Products (15)

  2021 Chrysler 3002021 Chrysler Pacifica2021 Dodge Challenger2021 Dodge Charger2021 Jeep Cherokee2021 Jeep Compass2021 Jeep Gladiator2021 Jeep Grand Cherokee2021 Jeep Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500
  Associated Documents

  • DownloadMC-10221608-0001.pdf↗
• July 15, 2021•Document ID: 10230190

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000167

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly

  Associated Products (1)

  2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10230190-0001.pdf↗
• July 15, 2021•Document ID: 10221604

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000167

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Air Bag Lamp On, DTC B00DF-95 Passenger Restraints Disable Switch-Incorrect Assembly

  Associated Products (1)

  2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221604-0001.pdf↗
• July 9, 2021•Document ID: 10230252

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  2302421

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Driver Side Freedom Panel Squeaks This bulletin includes removing the left Freedom Panel, drilling out the receiver bracket hole and applying grease in the bracket hole for a squeak condition. Customers may comment on one or more of the following: The left Freedom Panel squeaks when driving on rough roads.

  Associated Products (2)

  2021 Jeep Gladiator2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10230252-0001.pdf↗
• July 9, 2021•Document ID: 10230183

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000163

  Date Added:

  January 17, 2023

  Manufacturer:

  FIAT

  Summary

  No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration

  Associated Products (20)

  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 Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 55002021 Ram Promaster City
  Associated Documents

  • DownloadMC-10230183-0001.pdf↗
• July 9, 2021•Document ID: 10221666

  Service Bulletin/Repair Instructions
  TRAILER HITCHES

  Mfr Comm. #:

  2302421

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Driver Side Freedom Panel Squeaks This bulletin includes removing the left Freedom Panel, drilling out the receiver bracket hole and applying grease in the bracket hole for a squeak condition. Customers may comment on one or more of the following: The left Freedom Panel squeaks when driving on rough roads.

  Associated Products (2)

  2021 Jeep Gladiator2021 Jeep Wrangler
  Associated Documents

  • DownloadMC-10221666-0001.pdf↗
• July 9, 2021•Document ID: 10221597

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000163

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration

  Associated Products (20)

  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 Renegade2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 55002021 Ram Promaster City
  Associated Documents

  • DownloadMC-10221597-0001.pdf↗
• July 6, 2021•Document ID: 10230180

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  S2109000004

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.

  Associated Products (40)

  2022 Alfa Romeo Stelvio2022 Chrysler 3002022 Chrysler Pacifica2022 Chrysler Voyager2022 Dodge Challenger2022 Dodge Charger2022 Dodge Durango2022 Dodge Journey2022 Jeep Cherokee2022 Jeep Compass2022 Jeep Gladiator2022 Jeep Grand Wagoneer2022 Jeep Renegade2022 Jeep Wagoneer2022 Jeep Wrangler2022 Ram 15002022 Ram 25002022 Ram 35002022 Ram 45002022 Ram 5500+ 20 more
  Associated Documents

  • DownloadMC-10230180-0001.pdf↗
• July 6, 2021•Document ID: 10221594

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  S2109000004

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Issue involves overheating, running hot, coolant leaks and related symptoms after a Mopar replacement engine has been installed in the vehicle.

  Associated Products (40)

  2022 Alfa Romeo Stelvio2022 Chrysler 3002022 Chrysler Pacifica2022 Chrysler Voyager2022 Dodge Challenger2022 Dodge Charger2022 Dodge Durango2022 Dodge Journey2022 Jeep Cherokee2022 Jeep Compass2022 Jeep Gladiator2022 Jeep Grand Wagoneer2022 Jeep Renegade2022 Jeep Wagoneer2022 Jeep Wrangler2022 Ram 15002022 Ram 25002022 Ram 35002022 Ram 45002022 Ram 5500+ 20 more
  Associated Documents

  • DownloadMC-10221594-0001.pdf↗