Ram 1500 Service Bulletins

2,018 manufacturer communications on file.

May 3, 2021•Document ID: 10223404
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2118000006
Date Added:
October 17, 2022
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10223404-0001.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 (2)
2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-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 Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10223244-0001.pdf↗
May 3, 2021•Document ID: 10198404
Service Bulletin/Repair Instructions
POWER TRAIN
Mfr Comm. #:
74244
Date Added:
June 28, 2021
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 Wrangler 2021 Ram 1500
Associated Documents
- Download MC-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 Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-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 Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-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 1500 2021 Ram 2500 2021 Ram 3500 2021 Ram 4500 2021 Ram 5500
Associated Documents
- Download MC-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 1500 2021 Ram 2500 2021 Ram 3500 2021 Ram 4500
Associated Documents
- Download MC-10194024-0001.pdf↗
April 28, 2021•Document ID: 10221219
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; POWER TRAIN; ENGINE AND ENGINE COOLING
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
- Download MC-10221219-0001.pdf↗
April 28, 2021•Document ID: 10194072
Service Bulletin/Repair Instructions
EXTERIOR LIGHTING; AIR BAGS; POWER TRAIN; WHEELS; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; STEERING
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
- Download MC-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 Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-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
- Download MC-10221166-0001.pdf↗
April 27, 2021•Document ID: 10194023
Service Bulletin/Repair Instructions
EXTERIOR LIGHTING
Mfr Comm. #:
S2018000002 Rev.
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
Associated Products (3)
2021 Jeep Gladiator 2021 Jeep Wrangler 2021 Ram 1500
Associated Documents
- Download MC-10194023-0001.pdf↗
April 27, 2021•Document ID: 10194019
Service Bulletin/Repair Instructions
POWER TRAIN
Mfr Comm. #:
S2108000104
Date Added:
May 24, 2021
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
- Download MC-10194019-0001.pdf↗
April 26, 2021•Document ID: 10221168
Service Bulletin/Repair Instructions
FUEL SYSTEM, DIESEL
Mfr Comm. #:
S1818000024
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
Diesel Fuel Injector Cleaning Procedure
Associated Products (2)
2021 Jeep Grand Cherokee 2021 Ram 1500
Associated Documents
- Download MC-10221168-0001.pdf↗
April 26, 2021•Document ID: 10221163
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; EQUIPMENT
Mfr Comm. #:
S2123000025
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
HUD Heads Up Display Appears Blurry Or Double Image
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10221163-0001.pdf↗
April 26, 2021•Document ID: 10194021
Service Bulletin/Repair Instructions
FUEL SYSTEM, GASOLINE
Mfr Comm. #:
S1818000024 Rev.
Date Added:
May 24, 2021
Manufacturer:
JEEP
Summary
Diesel Fuel Injector Cleaning Procedure
Associated Products (2)
2021 Jeep Grand Cherokee 2021 Ram 1500
Associated Documents
- Download MC-10194021-0001.pdf↗
April 26, 2021•Document ID: 10194016
Service Bulletin/Repair Instructions
BACK OVER PREVENTION:DISPLAY FUNCTION
Mfr Comm. #:
S2123000025
Date Added:
May 24, 2021
Manufacturer:
RAM
Summary
HUD Heads Up Display Appears Blurry Or Double Image
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10194016-0001.pdf↗
April 24, 2021•Document ID: 10221159
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE
Mfr Comm. #:
S2108000100
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
CEL (Check Engine Lamp) Lamp On, Crank No Start, DTC U0109, U016C Lost Communications With Fuel Pump Module
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10221159-0001.pdf↗
April 24, 2021•Document ID: 10194012
Service Bulletin/Repair Instructions
FUEL SYSTEM, GASOLINE
Mfr Comm. #:
S2108000100
Date Added:
May 24, 2021
Manufacturer:
RAM
Summary
CEL (Check Engine Lamp) Lamp On, Crank No Start, DTC U0109, U016C Lost Communications With Fuel Pump Module
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10194012-0001.pdf↗

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