Ram 1500 Service Bulletins (2021)

1,126 manufacturer communications on file.

March 19, 2021•Document ID: 10220897
Service Bulletin/Repair Instructions
ENGINE AND ENGINE COOLING
Mfr Comm. #:
S2108000076
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
CEL Check Engine Lamp On, DTC P00F9 Supercharger-Turbocharger Outlet Pressure Sensor Range Performance
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220897-0001.pdf↗
March 19, 2021•Document ID: 10220896
Service Bulletin/Repair Instructions
STRUCTURE; VISIBILITY:WINDSHIELD
Mfr Comm. #:
S2123000018
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
Wind Noise From Driver Side Windshield Cowl Area
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220896-0001.pdf↗
March 19, 2021•Document ID: 10190644
Service Bulletin/Repair Instructions
ENGINE AND ENGINE COOLING
Mfr Comm. #:
S2108000076
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
CEL Check Engine Lamp On, DTC P00F9 Supercharger-Turbocharger Outlet Pressure Sensor Range Performance
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190644-0001.pdf↗
March 19, 2021•Document ID: 10190643
Service Bulletin/Repair Instructions
VISIBILITY
Mfr Comm. #:
S2123000018
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
Wind Noise From Driver Side Windshield Cowl Area
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190643-0001.pdf↗
March 18, 2021•Document ID: 10220962
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
0804221
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
Flash: Body Control Module (BCM) Updates This bulletin involves updating the BCM with the latest available software. Customer may comment that the hill descent button is inoperative.
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220962-0001.pdf↗
March 18, 2021•Document ID: 10190709
Service Bulletin/Repair Instructions
PARKING BRAKE; ELECTRICAL SYSTEM; STRUCTURE
Mfr Comm. #:
08-042-21
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
Flash: Body Control Module (BCM) Updates This bulletin involves updating the BCM with the latest available software. Customer may comment that the hill descent button is inoperative.
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190709-0001.pdf↗
March 17, 2021•Document ID: 10220888
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2108000071
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220888-0001.pdf↗
March 17, 2021•Document ID: 10190635
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2108000071
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190635-0001.pdf↗
March 16, 2021•Document ID: 10220958
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
0803721
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybrid Battery State Of Charge Performance. P0A7E-00 - Hybrid/EV Battery Pack Over Temperature. U1003-00 - ESP Can C Bus Performance. P2534-00 - Ignition Switch Run/Start Position Circuit Low. P0506 - Idle Speed Performance Lower Than Expected. P0507 - Idle Speed Performance Higher Than Expected. One Trip DTC Changed to a Two Trip DTC.P0AC6-00 - Hybrid/Ev Battery Temperature Sensor 2 Circuit Performance. P0ACB-00 - Hybrid/Ev Battery Temperature Sensor 3 Circuit Performance. U0121-00 - Lost Communication With Anti-Lock Brake System (ABS) Control Module. U0140-00 - Lost Communication With Body Control Module. U1818-00 - Lost Communication With ECM/PCM On D-PT Can. U0100-00 - Lost Communication With ECM/PCM. U0102-00 - Lost Communication With Transfer Case Control Module / AWD. U1003-00 - ESP Can C Bus Performance. P0562 - Battery/System Voltage Low. P060C-00 - Internal Control Module Main Processor Performance. U0415-00 - Implausible Data Received From ABS. U1850-00 - Implausible Data Received From PCM on D-PT. Two Trip DTC Changed to a One Trip DTC.P0E52-00 - DC/DC Converter Current Sensor Circuit A Range/Performance. P0C39-00 - DC/DC Converter Temperature Sensor 1 Performance. P0C3E-00 - DC/DC Converter Temperature Sensor 2 Performance. P0E59-00 - DC/DC Converter Temperature Sensor C Circuit Range/Performance. P0E32-00 - DC/DC Converter Voltage Sensor 1 Performance. P0E37-00 - DC/DC Converter Voltage Sensor 2 Performance. P2C8D-00 - DC/DC Converter Temperature Sensor "D" Circuit Range/Performance. P2535-00 - Ignition Switch Run/Start Position Circuit High. P2534-00 - Ignition Switch Run/Start Position Circuit Low.
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220958-0001.pdf↗
March 16, 2021•Document ID: 10220891
Service Bulletin/Repair Instructions
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER
Mfr Comm. #:
S2124000004
Date Added:
September 26, 2022
Manufacturer:
DODGE
Summary
A/C does not cool and vehicle is low on Freon charge but no leak is found with sniffer or black light anywhere in the system
Associated Products (20)
2021 Alfa Romeo Stelvio 2021 Chrysler 300 2021 Chrysler Pacifica 2021 Chrysler Voyager 2021 Dodge Challenger 2021 Dodge Charger 2021 Dodge Durango 2021 Fiat 500X 2021 Jeep Cherokee 2021 Jeep Compass 2021 Jeep Gladiator 2021 Jeep Grand Cherokee 2021 Jeep Renegade 2021 Jeep Wrangler 2021 Ram 1500 2021 Ram 2500 2021 Ram 3500 2021 Ram 4500 2021 Ram 5500 2021 Ram Promaster City
Associated Documents
- Download MC-10220891-0001.pdf↗
March 16, 2021•Document ID: 10220885
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2105000002
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
ESC ABS MIL light on DTC?s P0507, P04FC, P2172 set
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220885-0001.pdf↗
March 16, 2021•Document ID: 10190705
Service Bulletin/Repair Instructions
ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); STRUCTURE; ELECTRICAL SYSTEM; BACK OVER PREVENTION; EXTERIOR LIGHTING
Mfr Comm. #:
08-037-21
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
Flash: Hybrid Control Processor (HCP) Updates This bulletin involves updating the HCP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybrid Battery State Of Charge Performance. P0A7E-00 - Hybrid/EV Battery Pack Over Temperature. U1003-00 - ESP Can C Bus Performance. P2534-00 - Ignition Switch Run/Start Position Circuit Low. P0506 - Idle Speed Performance Lower Than Expected. P0507 - Idle Speed Performance Higher Than Expected. One Trip DTC Changed to a Two Trip DTC.P0AC6-00 - Hybrid/Ev Battery Temperature Sensor 2 Circuit Performance. P0ACB-00 - Hybrid/Ev Battery Temperature Sensor 3 Circuit Performance. U0121-00 - Lost Communication With Anti-Lock Brake System (ABS) Control Module. U0140-00 - Lost Communication With Body Control Module. U1818-00 - Lost Communication With ECM/PCM On D-PT Can. U0100-00 - Lost Communication With ECM/PCM. U0102-00 - Lost Communication With Transfer Case Control Module / AWD. U1003-00 - ESP Can C Bus Performance. P0562 - Battery/System Voltage Low. P060C-00 - Internal Control Module Main Processor Performance. U0415-00 - Implausible Data Received From ABS. U1850-00 - Implausible Data Received From PCM on D-PT. Two Trip DTC Changed to a One Trip DTC.P0E52-00 - DC/DC Converter Current Sensor Circuit A Range/Performance. P0C39-00 - DC/DC Converter Temperature Sensor 1 Performance. P0C3E-00 - DC/DC Converter Temperature Sensor 2 Performance. P0E59-00 - DC/DC Converter Temperature Sensor C Circuit Range/Performance. P0E32-00 - DC/DC Converter Voltage Sensor 1 Performance. P0E37-00 - DC/DC Converter Voltage Sensor 2 Performance. P2C8D-00 - DC/DC Converter Temperature Sensor "D" Circuit Range/Performance. P2535-00 - Ignition Switch Run/Start Position Circuit High. P2534-00 - Ignition Switch Run/Start Position Circuit Low.
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190705-0001.pdf↗
March 16, 2021•Document ID: 10190632
Service Bulletin/Repair Instructions
ENGINE AND ENGINE COOLING
Mfr Comm. #:
S2105000002
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
ESC ABS MIL light on DTC?s P0507, P04FC, P2172 set
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190632-0001.pdf↗
March 13, 2021•Document ID: 10220956
Service Bulletin/Repair Instructions
POWER TRAIN; ELECTRICAL SYSTEM
Mfr Comm. #:
1802821
Date Added:
September 26, 2022
Manufacturer:
RAM
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, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0524 - Low oil pressure (during start up in cold ambient temps). P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P02E8-00 - Diesel Intake Air Flow Position Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P065A-00 - Generator System Performance. P00AF-00 - Turbocharger Boost Control Module "A" Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P0106-00 - Manifold Absolute Pressure Sensor Performance. Customers may experience the following:Radio may reset during engine idle. Electronic Throttle Control (ETC) lamp turns on. After a long cold soak a stumble/hesitation is felt during the first few light accelerations. Turbo Surge in park or neutral and high Idle. The cruise control and speed limited set speed doesn?t match the speedometer. It could be up to 2.5 kpm (1.5 mph) difference. Other Software enhancements:Speedometer accuracy improvement(s). Cruise control updates. Battery durability improvements in hot ambient temperatures. Improved idle quality during remote start.
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220956-0001.pdf↗
March 13, 2021•Document ID: 10220883
Service Bulletin/Repair Instructions
EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
Mfr Comm. #:
S2108000069
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
SXM Channels Inoperative Above Channel 450
Associated Products (5)
2021 Ram 1500 2021 Ram 2500 2021 Ram 3500 2021 Ram 4500 2021 Ram 5500
Associated Documents
- Download MC-10220883-0001.pdf↗
March 13, 2021•Document ID: 10190703
Service Bulletin/Repair Instructions
SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, DIESEL; POWER TRAIN; BACK OVER PREVENTION; ELECTRICAL SYSTEM; EXTERIOR LIGHTING; AIR BAGS; FUEL SYSTEM, GASOLINE
Mfr Comm. #:
18-028-21
Date Added:
April 26, 2021
Manufacturer:
RAM
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, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0524 - Low oil pressure (during start up in cold ambient temps). P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P02E8-00 - Diesel Intake Air Flow Position Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P065A-00 - Generator System Performance. P00AF-00 - Turbocharger Boost Control Module "A" Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P0106-00 - Manifold Absolute Pressure Sensor Performance. Customers may experience the following:Radio may reset during engine idle. Electronic Throttle Control (ETC) lamp turns on. After a long cold soak a stumble/hesitation is felt during the first few light accelerations. Turbo Surge in park or neutral and high Idle. The cruise control and speed limited set speed doesn?t match the speedometer. It could be up to 2.5 kpm (1.5 mph) difference. Other Software enhancements:Speedometer accuracy improvement(s). Cruise control updates. Battery durability improvements in hot ambient temperatures. Improved idle quality during remote start.
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190703-0001.pdf↗
March 13, 2021•Document ID: 10190630
Service Bulletin/Repair Instructions
EQUIPMENT
Mfr Comm. #:
S2108000069
Date Added:
April 26, 2021
Manufacturer:
RAM
Summary
SXM Channels Inoperative Above Channel 450
Associated Products (4)
2021 Ram 1500 2021 Ram 2500 2021 Ram 3500 2021 Ram 4500
Associated Documents
- Download MC-10190630-0001.pdf↗
March 12, 2021•Document ID: 10220953
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; POWER TRAIN
Mfr Comm. #:
2100521
Date Added:
September 26, 2022
Manufacturer:
RAM
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 64 km (40 miles) on the odometer:A Malfunction Indicator Lamp (MIL) event or failure withnoDiagnostic Trouble Codes (DTCs) and the vehicle has less than 40 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 64 km (40 miles).
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220953-0001.pdf↗
March 12, 2021•Document ID: 10220880
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
S2108000067
Date Added:
September 26, 2022
Manufacturer:
RAM
Summary
Electronic Throttle Control Message And MIL Displayed. In Some Cases Rear Park Assist Temporarily Unavailable. U02BE Is Active And TRSCM Is Offline
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10220880-0001.pdf↗
March 12, 2021•Document ID: 10190700
Service Bulletin/Repair Instructions
EXTERIOR LIGHTING; POWER TRAIN; ELECTRICAL SYSTEM
Mfr Comm. #:
21-005-21
Date Added:
April 26, 2021
Manufacturer:
RAM
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 64 km (40 miles) on the odometer:A Malfunction Indicator Lamp (MIL) event or failure withnoDiagnostic Trouble Codes (DTCs) and the vehicle has less than 40 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 64 km (40 miles).
Associated Products (1)
2021 Ram 1500
Associated Documents
- Download MC-10190700-0001.pdf↗

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