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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
S19230000142022-10-17. Service bulletin. EQUIPMENT. Ram Box Lid Fitment And Or Closing Effort Issues
S21180000092022-10-17. Service bulletin. ENGINE AND ENGINE COOLING. Customer complains of a MIL-on condition. Upon further inspection, there is a Diagnostic Trouble Code (DTC) P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) set in the PCM.
S21080001192022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
S20080000102022-10-17. Service bulletin. ELECTRICAL SYSTEM. Apple Carplay Inoperative Or Not Working, Phone Not Pairing, Carplay Lockup, Freeze or Audio Concerns
S21230000282022-10-17. Service bulletin. STRUCTURE:BODY. Noise From Under Seat With Occupant Seated.
S21080001202022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Volume Uncontrollable Or Changing On Its Own
S21230000342022-10-17. Service bulletin. SUSPENSION; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). C15A1-00 Unable To Obtain Desired Ride Height Service Air Suspension Message On Cluster
S21230000332022-10-17. Service bulletin. BACK OVER PREVENTION. Underbody Ticking Noise That Increases With Vehicle Speed
S21080001172022-10-17. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING. Right Rear Side Marker Parking Lamp Does Not Illuminate
S21180000082022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE. Hard To Fill Fuel Tank. Gas Pump Shuts Off During Filling
S21080000982022-10-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Freeze, Blank Screen And Reset
S18090000072022-10-17. Service bulletin. ENGINE. Customer Complaint May Include Engine Oil Leak Or Consumption
S21080001102022-10-17. Service bulletin. SERVICE BRAKES, HYDRAULIC; TRAILER HITCHES; BACK OVER PREVENTION. IPC (Instrument Panel Cluster) Sets DTC U013A-00 - Lost Communication with Trailer Tire Pressure Monitor Module
S21080001092022-10-17. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Remote Key Fobs Only Work In Close Range
S21180000062022-10-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P20C6 ? Reductant Heater 4 Control Circuit, Set.
90043822022-10-17. Service bulletin. BACK OVER PREVENTION; SEATS; SUSPENSION. BUSHING, Tailgate Pivot For vehilces built after Dec 1 2020 if the tailgate is making a noise when opening or closing or if the bushing is being replaced for any reason please call FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the inside of the pivot cup after plastic bushing removal and pictures of the pivot post on the box side hinge. Mail pictures to FCA Redacted Content.
90043762022-10-17. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90043752022-10-17. Service bulletin. BACK OVER PREVENTION. 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.
08072222022-10-17. Service bulletin. VEHICLE SPEED CONTROL; STRUCTURE; SEATS; ELECTRICAL SYSTEM. Race Cool Down Feature Inoperative This bulletin involves installing a hood latch, adding a hood latch switch jumper harness and a Body Control Module (BCM) Reconfiguration. Customers may experience: The ?Race Cool Down? feature does not work.One of the inputs the vehicle looks at for this feature to work properly, is the hood closed status. If the vehicle was built without remote start, the hood latch will not have a close switch in the latch. No Diagnostic Trouble Codes (DTCs) will set for this issue.
23014222022-10-17. Service bulletin. BACK OVER PREVENTION; PARKING BRAKE. Driver Side Seat incorrect fasteners This bulletin involves inspecting and if necessary replacing the driver?s side seattrack bolts. The customer may describe that the driver's side seat feels loose when adjusting and makes a rattling/clunk noise over bumps.
Y812022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Emissions Recall Y81 Diesel Exhaust Fluid Inducement
S22080000822022-10-17. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Service 4WD Message Is Displayed In The Instrument Cluster
S21180000152022-10-17. Service bulletin. EXTERIOR LIGHTING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P0403 ? EGR Control Circuit Open, Set.
S22080000802022-10-17. Service bulletin. ELECTRICAL SYSTEM. Ambient Air Temperature Missing, MIL Lamp On, DTC P0070-15 Ambient Air Temperature Sensor Circuit-Circuit Short to Battery or Open; P0073 Ambient Air Temperature Sensor Circuit High
S22230000262022-10-17. Service bulletin. TIRES. Front Tire Rub On Fender Liner Splash Shield

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