2021 Ram 1500 Technical Service Bulletins

1,130 technical service bulletins (TSBs) are on record for the 2021 Ram 1500. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10223470May 3, 2021Transmission and drivetrain. 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)
• 10223404May 3, 2021Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
• 10223310May 3, 2021Transmission and drivetrain. 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)
• 10223244May 3, 2021Exterior lighting. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
• 10198404May 3, 2021Transmission and drivetrain. 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)
• 10198338May 3, 2021Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
• 10221173Apr 29, 2021Electrical system. 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.
• 10221171Apr 29, 2021Visibility (wipers, defrost, mirrors). A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11
• 10194024Apr 29, 2021Air bags. A/C Performance Not As Hot/Cold On Driver Side - DTC's B11CB-92, B11CB-11
• 10221219Apr 28, 2021Electrical system, Engine cooling, Transmission and drivetrain. 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…
• 10194072Apr 28, 2021Transmission and drivetrain, Electrical system, Exterior lighting, Air bags…. 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…
• 10221170Apr 27, 2021Electrical system. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
• 10221166Apr 27, 2021Electrical system. No Start, On Stop Start Vehicles A MIL Lamp On With DTC P0A97 Combined With The No Start
• 10194023Apr 27, 2021Exterior lighting. Malfunction Indicator Lamp (MIL) Illuminated. Fuel Injection Quantity Diagnostic Trouble Codes (DTCs) Set.
• 10194019Apr 27, 2021Transmission and drivetrain. No Start, On Stop Start Vehicles A MIL Lamp On With DTC P0A97 Combined With The No Start
• 10221168Apr 26, 2021Fuel system. Diesel Fuel Injector Cleaning Procedure
• 10221163Apr 26, 2021Electrical system, Equipment. HUD Heads Up Display Appears Blurry Or Double Image
• 10194021Apr 26, 2021Fuel system. Diesel Fuel Injector Cleaning Procedure
• 10194016Apr 26, 2021Back-over prevention (rear camera). HUD Heads Up Display Appears Blurry Or Double Image
• 10221159Apr 24, 2021Engine cooling, Fuel system, Electrical system. CEL (Check Engine Lamp) Lamp On, Crank No Start, DTC U0109, U016C Lost Communications With Fuel Pump Module
• 10194012Apr 24, 2021Fuel system. CEL (Check Engine Lamp) Lamp On, Crank No Start, DTC U0109, U016C Lost Communications With Fuel Pump Module
• 10221208Apr 22, 2021Other or unknown, Equipment. 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.
• 10221158Apr 22, 2021Electrical system. CEL (Check Engine Lamp) On, Stop Start Inoperative, DTC B25C9 Driver Door Ajar Switch 2 Stuck Closed
• 10194061Apr 22, 2021Equipment. 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.
• 10194011Apr 22, 2021Electrical system, Vehicle speed control, Air bags. CEL (Check Engine Lamp) On, Stop Start Inoperative, DTC B25C9 Driver Door Ajar Switch 2 Stuck Closed
• 10221177Apr 21, 2021Equipment, Electrical system. Radio Screen Freeze, Blank Screen And Reset
• 10194030Apr 21, 2021Equipment. Radio Screen Freeze, Blank Screen And Reset
• 10221154Apr 17, 2021Electrical system. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle, Intermittent Key Not Detected Message
• 10221153Apr 17, 2021Electrical system, Equipment. Battery Tester Warranty Code Procedures, Midtronics Charger Update Process
• 10194007Apr 17, 2021Transmission and drivetrain. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle, Intermittent Key Not Detected Message
• 10221155Apr 16, 2021Visibility (wipers, defrost, mirrors). Customer Indicates That Temperature Varies From Side To Side Being Colder On One Side Compared To The Other.
• 10221152Apr 16, 2021Electrical system, Equipment. Battery Tester Warranty Code Procedures, Medtronic Update Process
• 10221150Apr 16, 2021Transmission and drivetrain. Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders
• 10194008Apr 16, 2021Engine cooling. Customer Indicates That Temperature Varies From Side To Side Being Colder On One Side Compared To The Other.
• 10221145Apr 15, 2021Body and structure. Water Leak Rear Of Cab Rear Seat Or Headliner
• 10221106Apr 15, 2021Equipment. TRANSMITTER, Integrated Key Fob (Cut and Uncut) Due to a global semiconductor shortage, service availability of this part is limited. To maintain production and service requirements, FOBIKs affected by the shortage will be available on an ?as required basis?. This FOBIK should only be ordered in the event the vehicle is inoperable, and there are no other FOBIKs available. It is requested the customer uses their…
• 10193998Apr 15, 2021Body and structure. Water Leak Rear Of Cab Rear Seat Or Headliner
• 10193959Apr 15, 2021Equipment. TRANSMITTER, Integrated Key Fob (Cut and Uncut) Due to a global semiconductor shortage, service availability of this part is limited. To maintain production and service requirements, FOBIKs affected by the shortage will be available on an ?as required basis?. This FOBIK should only be ordered in the event the vehicle is inoperable, and there are no other FOBIKs available. It is requested the customer uses their…
• 10221143Apr 13, 2021Electrical system. Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
• 10193996Apr 13, 2021Back-over prevention (rear camera). Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
• 10221139Apr 10, 2021Electrical system. Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
• 10193992Apr 10, 2021Back-over prevention (rear camera). Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
• 10221188Apr 9, 2021Electrical system. Key FOBIK Shortage and Restriction This bulletin is to inform customers, technicians and sales staff that vehicles are being delivered with only one key FOBIK due to a temporary semi conductor shortage. The customer may notice that they only have one key FOBIK when the vehicle was delivered or need an additional key FOBIK due to a lost or damaged keyFOBIK.Key FOBIKs to service customer vehicles are limited to…
• 10221142Apr 9, 2021Electrical system. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P051B ? Crankcase Pressure Sensor Circuit Performance, and/or P04DB ? Crankcase Ventilation System Disconnected, Set After Powertrain Control Module (PCM) Replacement
• 10221137Apr 9, 2021Electrical system, Equipment. Apple CarPlay Does Not Work Or Not Connecting
• 10194041Apr 9, 2021Equipment. Key FOBIK Shortage and Restriction This bulletin is to inform customers, technicians and sales staff that vehicles are being delivered with only one key FOBIK due to a temporary semi conductor shortage. The customer may notice that they only have one key FOBIK when the vehicle was delivered or need an additional key FOBIK due to a lost or damaged keyFOBIK.Key FOBIKs to service customer vehicles are limited to…
• 10193995Apr 9, 2021Back-over prevention (rear camera), Electrical system, Exterior lighting, Brakes. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P051B ? Crankcase Pressure Sensor Circuit Performance, and/or P04DB ? Crankcase Ventilation System Disconnected, Set After Powertrain Control Module (PCM) Replacement
• 10193990Apr 9, 2021Back-over prevention (rear camera), Equipment. Apple CarPlay Does Not Work Or Not Connecting
• 10221102Apr 7, 2021Engine. TRANSMITTER, Integrated Key Fob (Cut and Uncut) Due to a global semiconductor shortage, service availability of this part is limited. To maintain production and service requirements, FOBIKs affected by the shortage will be available on an ?as required basis?. This FOBIK should only be ordered in the event the vehicle is inoperable, and there are no other FOBIKs available. It is requested the customer uses their…
• 10221097Apr 7, 2021Transmission and drivetrain. Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage.

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