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Service bulletins for the 2021 Ram 1500

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1129 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
S2025000006RevA2022-10-31. Service bulletin. EQUIPMENT:ELECTRICAL. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P206D ? Reductant Quality Sensor Circuit High Set.
S1823000030RevA2022-10-31. Service bulletin. STEERING. Buzz Squeak Noise From Steering Column Area While Turning Steering Wheel
S228A0000172022-10-31. Service bulletin. ELECTRICAL SYSTEM. Battery Drain Suspected or "Identified" From USB or Media Hub
S2224000001RevA2022-10-31. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Customer indicates AC does not blow cool air. Possible DTC B11FE-11 or B11FE-15 Variable Compressor Control Circuits.
S22230000572022-10-31. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. Calibrating Central Vision Processing Module (CVPM) Front Camera After Replacement
S22080001132022-10-31. Service bulletin. ELECTRICAL SYSTEM. No Start, DTC P0615 Starter Control Circuit Open
S20080001832022-10-17. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. The Stop/Start (ESS) Off Switch Does Not Illuminate When Pressed
S20080001262022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL. (Rev. B) RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start
S19230000442022-10-17. Service bulletin. STRUCTURE. (Rev. D) Dust Intrusion Or Air Leak In Cab
S20080001722022-10-17. Service bulletin. ELECTRICAL SYSTEM. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
S19250000082022-10-17. Service bulletin. SERVICE BRAKES; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set.
S16250000052022-10-17. Service bulletin. FUEL SYSTEM, DIESEL; AIR BAGS; FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown.
S20080001712022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. HVAC Blower Motor Operates Intermittently Or Changes Speeds
S20250000012022-10-17. Service bulletin. EXTERIOR LIGHTING; BACK OVER PREVENTION. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
9004324A2022-10-17. Service bulletin. VEHICLE SPEED CONTROL. SEAL, REAR DOOR GLASS RUN Loose, deformed and torn door seals. If the door seal in question is being ordered for any of these conditions please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the area identifying the door and seal affected as well as the VIN of the vehicle and email pictures to FCA Redacted Content.
90043242022-10-17. Service bulletin. VEHICLE SPEED CONTROL. SEAL, REAR DOOR GLASS RUN Loose, deformed and torn door seals. If the door seal in question is being ordered for any of these conditions please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the area identifying the door and seal affected as well as the VIN of the vehicle and email pictures to FCA Redacted Content
0200220REVA2022-10-17. Service bulletin. STEERING. Steering Wheel Off Center This bulletin involves adjusting the front toe to correct a steering wheel off center condition. This is due to an inaccurate alignment settings from the plant. The customer may describe the steering wheel is off center.
S20240000072022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Customer Indicates There Is A Whistle Noise After The Vehicle Is Turned Off.
S1918000013RevA2022-10-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. No Crank No Start Condition. P0688 - Auto Shutdown Relay Sense Circuit Low Found In The PCM
08144222022-10-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. 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: C1415-92 - Transfer Case Motor Current-Performance or Incorrect Operation. 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 updating the 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 4WD AUTO(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/conditions are 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).
1809122REVA2022-10-17. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. 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 the technician may find the following DTC: P219A - Bank 1 Fuel/Air Ratio Imbalance(North America Only). Customers may also experience one or more of the following: An engine stall at low engine mileage and mostly low vehicle speeds 16 - 24 kph (10 - 15 mph). LED light in the Start/Stop button will not illuminate when pressed.
S22080001432022-10-17. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS. Driver And Passenger Window Make a Small Window Reversal After Stopping the Express Up Request at The Mid-way Point And Re-engaging The Express Up Request
S2121000015RevB2022-10-17. Service bulletin. PARKING BRAKE:DRIVELINE. Driveline Clunk When Stopping Or Upon Take Off Launch Immediately After A Stop
S1908000193RevA2022-10-17. Service bulletin. STRUCTURE:BODY:TAILGATE; ELECTRICAL SYSTEM. The Tailgate Ajar Warning Lamp Does Not Illuminate
S22080001382022-10-17. Service bulletin. ELECTRICAL SYSTEM. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.