Ram 1500 Service Bulletins (2021)

1,126 manufacturer communications on file.

• May 5, 2021•Document ID: 10223377

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; EQUIPMENT:ELECTRICAL:INFOTAINMENT

  Mfr Comm. #:

  9004375

  Date Added:

  October 17, 2022

  Manufacturer:

  RAM

  Summary

  RADIO, MULTI Media (ASSY) The customers may have concerns of backup camera missing gridlines or showing black screen with "check entire surroundings" message while in Reverse mode. It is a backup camera initialization timing issue. Please check the backup camera and connections. This issue is recoverable with a key cycle. Replacing the radio head unit will not resolve the customer's concerns. FOTA service software release is scheduled for later June, 2021.

  Associated Products (7)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500
  Associated Documents

  • DownloadMC-10223377-0001.pdf↗
• May 5, 2021•Document ID: 10223326

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  0807721

  Date Added:

  October 17, 2022

  Manufacturer:

  RAM

  Summary

  Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. The following software enhancement is available: Amplifier update to eliminate static noise from the instrument panel mounted speakers.

  Associated Products (1)

  2021 Ram 1500
  Associated Documents

  • DownloadMC-10223326-0001.pdf↗
• May 5, 2021•Document ID: 10223217

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  9004375

  Date Added:

  October 17, 2022

  Manufacturer:

  JEEP

  Summary

  RADIO, MULTI Media (ASSY) The customers may have concerns of backup camera missing gridlines or showing black screen with "check entire surroundings" message while in Reverse mode. It is a backup camera initialization timing issue. Please check the backup camera and connections. This issue is recoverable with a key cycle. Replacing the radio head unit will not resolve the customer's concerns. FOTA service software release is scheduled for later June, 2021.

  Associated Products (6)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 4500
  Associated Documents

  • DownloadMC-10223217-0001.pdf↗
• May 5, 2021•Document ID: 10198420

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  08-077-21

  Date Added:

  June 28, 2021

  Manufacturer:

  RAM

  Summary

  Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. The following software enhancement is available: Amplifier update to eliminate static noise from the instrument panel mounted speakers.

  Associated Products (1)

  2021 Ram 1500
  Associated Documents

  • DownloadMC-10198420-0001.pdf↗
• May 5, 2021•Document ID: 10198291

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  9004375

  Date Added:

  June 28, 2021

  Manufacturer:

  RAM

  Summary

  RADIO, MULTI Media (ASSY) The customers may have concerns of backup camera missing gridlines or showing black screen with "check entire surroundings" message while in Reverse mode. It is a backup camera initialization timing issue. Please check the backup camera and connections. This issue is recoverable with a key cycle. Replacing the radio head unit will not resolve the customer's concerns. FOTA service software release is scheduled for later June, 2021.

  Associated Products (6)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 4500
  Associated Documents

  • DownloadMC-10198291-0001.pdf↗
• May 3, 2021•Document ID: 10230082

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  74244

  Date Added:

  January 17, 2023

  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 (2)

  2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10230082-0001.pdf↗
• May 3, 2021•Document ID: 10230016

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2118000006

  Date Added:

  January 17, 2023

  Manufacturer:

  JEEP

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10230016-0001.pdf↗
• May 3, 2021•Document ID: 10223470

  Service Bulletin/Repair Instructions
  POWER TRAIN:DRIVELINE:HYDRAULIC:MOTOR/PUMP; 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 (2)

  2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10223470-0001.pdf↗
• May 3, 2021•Document ID: 10223404

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2118000006

  Date Added:

  October 17, 2022

  Manufacturer:

  RAM

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10223404-0001.pdf↗
• May 3, 2021•Document ID: 10223310

  Service Bulletin/Repair Instructions
  POWER TRAIN

  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 (2)

  2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10223310-0001.pdf↗
• May 3, 2021•Document ID: 10223244

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  S2118000006

  Date Added:

  October 17, 2022

  Manufacturer:

  RAM

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10223244-0001.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 (2)

  2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10198404-0001.pdf↗
• May 3, 2021•Document ID: 10198338

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2118000006

  Date Added:

  June 28, 2021

  Manufacturer:

  JEEP

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10198338-0001.pdf↗
• April 29, 2021•Document ID: 10221173

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2118000004

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P225D ? NOX Sensor 1/1 Performance, Signal Stuck Low And/Or P225C ? NOX Sensor 1/1 Performance, Signal Stuck High, Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10221173-0001.pdf↗
• April 29, 2021•Document ID: 10221171

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  S2124000003

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11

  Associated Products (5)

  2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 45002021 Ram 5500
  Associated Documents

  • DownloadMC-10221171-0001.pdf↗
• April 29, 2021•Document ID: 10194024

  Service Bulletin/Repair Instructions
  AIR BAGS

  Mfr Comm. #:

  S2124000003

  Date Added:

  May 24, 2021

  Manufacturer:

  RAM

  Summary

  A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11

  Associated Products (4)

  2021 Ram 15002021 Ram 25002021 Ram 35002021 Ram 4500
  Associated Documents

  • DownloadMC-10194024-0001.pdf↗
• April 28, 2021•Document ID: 10221219

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  0806721

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  Flash: Drivetrain Control Module (DTCM) Diagnostic and System Improvements This bulletin involves reprogramming the DTCM with the latest available software. The technician may find one or more of the following DTCs:U1440 - Implausible Transfer Case Ratio High Received. U0403-00 - Implausible Data Received From T-case. C1403-92 - Transfer Case Range Position Sensor-Performance Or Incorrect Operation(2019-2020 Vehicles Only). If only DTC C1403 is present, follow normal diagnostic procedures before updatingthe DTCM.In addition the customer may describe one or more of the following:Traction Control System light is illuminated. A driveline bump can be heard/felt occasionally when the driver is steady on the throttle at about 20-30% on a flat road while in 4WDAUTO(2019-2020 Vehicles Only). An excessive electric motor clicking sound from the middle of the vehicle/transfer case area, when on and off the throttle(2019-2020 Vehicles Only). An excessive electric motor clicking sound with steering wheel movement, most notable in parking lot or low speed maneuvering(2019-2020 Vehicles Only). A ?Service 4WD? message/fault without commanding a transfer case shift(2019-2020 Vehicles Only).If only the ?Service 4WD? message/fault is displayed in the Instrument Panel Cluster (IPC) and no other symptom/conditionsare present, follow normal diagnostic procedures before updating the DTCM(2019-2020 Vehicles Only). The blinking of the ?4WD Low? and ?4WD High? indicator lights at the same time, on the transfer case selector switch.If both 4WD indicator lights on the transfer case selector switch are blinking and no other symptom/conditions are present,follow normal diagnostic procedures before updating the DTCM(2019-2020 Vehicles Only). During highway/freeway speeds, a bump in the driveline may be felt. This could also be described as a harsh transmission shift(2019-2020 Vehicles Only).

  Associated Products (1)

  2021 Ram 1500
  Associated Documents

  • DownloadMC-10221219-0001.pdf↗
• April 28, 2021•Document ID: 10194072

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING; STEERING; WHEELS; POWER TRAIN; ELECTRICAL SYSTEM; AIR BAGS

  Mfr Comm. #:

  08-067-21

  Date Added:

  May 24, 2021

  Manufacturer:

  RAM

  Summary

  Flash: Drivetrain Control Module (DTCM) Diagnostic and System Improvements This bulletin involves reprogramming the DTCM with the latest available software. The technician may find one or more of the following DTCs:U1440 - Implausible Transfer Case Ratio High Received. U0403-00 - Implausible Data Received From T-case. C1403-92 - Transfer Case Range Position Sensor-Performance Or Incorrect Operation(2019-2020 Vehicles Only). If only DTC C1403 is present, follow normal diagnostic procedures before updatingthe DTCM.In addition the customer may describe one or more of the following:Traction Control System light is illuminated. A driveline bump can be heard/felt occasionally when the driver is steady on the throttle at about 20-30% on a flat road while in 4WDAUTO(2019-2020 Vehicles Only). An excessive electric motor clicking sound from the middle of the vehicle/transfer case area, when on and off the throttle(2019-2020 Vehicles Only). An excessive electric motor clicking sound with steering wheel movement, most notable in parking lot or low speed maneuvering(2019-2020 Vehicles Only). A ?Service 4WD? message/fault without commanding a transfer case shift(2019-2020 Vehicles Only).If only the ?Service 4WD? message/fault is displayed in the Instrument Panel Cluster (IPC) and no other symptom/conditionsare present, follow normal diagnostic procedures before updating the DTCM(2019-2020 Vehicles Only). The blinking of the ?4WD Low? and ?4WD High? indicator lights at the same time, on the transfer case selector switch.If both 4WD indicator lights on the transfer case selector switch are blinking and no other symptom/conditions are present,follow normal diagnostic procedures before updating the DTCM(2019-2020 Vehicles Only). During highway/freeway speeds, a bump in the driveline may be felt. This could also be described as a harsh transmission shift(2019-2020 Vehicles Only).

  Associated Products (1)

  2021 Ram 1500
  Associated Documents

  • DownloadMC-10194072-0001.pdf↗
• April 27, 2021•Document ID: 10221170

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2018000002

  Date Added:

  September 26, 2022

  Manufacturer:

  JEEP

  Summary

  Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.

  Associated Products (3)

  2021 Jeep Gladiator2021 Jeep Wrangler2021 Ram 1500
  Associated Documents

  • DownloadMC-10221170-0001.pdf↗
• April 27, 2021•Document ID: 10221166

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  S2108000104

  Date Added:

  September 26, 2022

  Manufacturer:

  RAM

  Summary

  No Start, On Stop Start Vehicles A MIL Lamp On With DTC P0A97 Combined With The No Start

  Associated Products (1)

  2021 Ram 1500
  Associated Documents

  • DownloadMC-10221166-0001.pdf↗