WenmarOpen by Wenmar Pro

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
S21080000522021-03-15. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; ELECTRICAL SYSTEM. Heated Seat LED Indicator Turns On And Back Off. One Or More Heated Seat DTC?s
S21230000112021-03-15. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD:CRITICAL FASTENERS; VISIBILITY:WINDSHIELD. Rattle Tapping Fluttering Noise From A Pillar Or Dash Driving At Highway Speeds
S21050000012021-03-15. Service bulletin. ELECTRICAL SYSTEM. Hill Descent Control HDC Inoperative From IP Center Stack Switch
S2008000042 Rev.2021-03-15. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Display Is Black After Replacing The Rear View Camera
S210800000492021-03-15. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD WIPER/WASHER; ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS. Windshield Washer Fluid Pump Does Not Function. Interior Rear Dome, Vanity And Glove Box Lamps Do Not Illuminate
S21020000012021-03-15. Service bulletin. SUSPENSION; EQUIPMENT. Service Air Suspension Message On Cluster With DTC?s C15D9-00 C15A1-00
S2123000009 Rev.2021-03-15. Service bulletin. STRUCTURE:BODY; EXTERIOR LIGHTING:BRAKE LIGHTS. Water is leaking into cab through the third brake light CHMSL
S2008000126 Rev.2021-03-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE AND ENGINE COOLING. RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start, Key Not Detected Message
S21080000452021-03-15. Service bulletin. EQUIPMENT:ELECTRICAL. Favorite Song On-Air Alert List Empty
S21080000432021-03-15. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT; BACK OVER PREVENTION. Backup Camera has Black Screen with ?Check Entire Surroundings? Message
S21080000392021-03-15. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Back Up Camera Inoperative Complaints, Radio Display Blue Or Blank When Placed In Reverse
S21230000092021-03-15. Service bulletin. EXTERIOR LIGHTING; STRUCTURE:BODY. Water is leaking into cab through the third brake light CHMSL
S1808000233 Rev.2021-03-15. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH PLATE; STRUCTURE:BODY:DOOR; EQUIPMENT. The Passive Entry Door Handle Does Not Unlock The Door And B25A3-00 Or B25A4-00 May Be Active
S2119000001 Rev.2021-03-15. Service bulletin. STEERING; EQUIPMENT. Click Pop Creak Noise While Turning Steering Wheel
S21140000012021-03-15. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. Humming/Buzzing Noise From Under The Hood With The Key Off.
90043462021-03-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:BODY:DOOR; EQUIPMENT. MOLDING, Day light opening If the complaint for this part is coming loose or pulling away from the door please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please take pictures of the part condition and an overall picture of the affected door/area and send them to FCA Redacted Content.
09-014-202021-03-01. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. Transmission Oil Cooler Line Not Fully Connected This bulletin involves inspecting the Transmission Oil Cooler (TOC) lines and reconnectingif necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs).P1D90-00 Incorrect Gear Ratio - Clutch 2 Defective. P1D91-00 Incorrect Gear Ratio - Clutch 3 Defective. P1D92-00 Incorrect Gear Ratio - Clutch 4 Defective. P1D93-00 Incorrect Gear Ratio - Clutch 5 Defective. P1D95-00 Tcm Clutch Failure Undetermined. P1B14-00 Park-By-Wire - Unintended Park Position. P1B13-00 Park-By-Wire - Unintended Out Of Park Position. P1D99-00 Incorrect Gear Ratio: Clutch B Or E Defective. P1D9A-00 Incorrect Gear Ratio: Clutch C Or D Defective. P1D95-00 Tcm Clutch Failure Undetermined. P07E4-00 Unable To Engage Park. P1DCD-00 Tcm Monitoring Processor Performance - Multiple Clutches Locked Up. P0735-00 Gear 5 Shift Incorrect Ratio. P0919-00 Gear Shift Position Control Error. Customers may also experience the following:Transmission fluid leaking under vehicle. The vehicle will not shift. Slow shifting between gears.
09-013-20 REV. A2021-03-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS; ENGINE. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. 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:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following:Rough running engine.
09-013-202021-03-01. Service bulletin. ENGINE; EQUIPMENT; ELECTRICAL SYSTEM. 3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. 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:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following: Rough running engine.
S20250000082021-03-01. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. Excessive Diesel Exhaust Fluid (DEF) Consumption.
S20080001962021-03-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. Diagnostic Trouble Code (DTC) P065A ? Generator System Performance, Additional Information.
S20230000502021-03-01. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Secondary Seal To Address DT Dual Pane Sunroof Water Leaks Through Car Washes
S20230000482021-03-01. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES; STRUCTURE. Left Rambox Lid Unlatches By Itself
S2024000007 Rev.2021-03-01. Service bulletin. STRUCTURE:INTERIOR PANELS:DASHBOARD; EQUIPMENT ADAPTIVE/MOBILITY. Customer Indicates There Is A Whistle Noise After The Vehicle Is Turned Off.
S2008000182 Rev.2021-03-01. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Driver Or Passenger Power Windows Do Not Go Up Or Down

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