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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

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
S21080000712021-04-26. Service bulletin. ELECTRICAL SYSTEM. Cluster Displays Service Active Dampening System Message, DTC B2286 Calibration Not Learned ? Lost Calibration
S21080000662021-04-26. Service bulletin. ELECTRICAL SYSTEM. Check Engine Lamp On, P2504 Charge System Output High
S2108000060 Rev.2021-04-26. Service bulletin. ELECTRICAL SYSTEM. Service Park Assist Message Or Rear Park Assist Unavailable Message Displaying On The Cluster
S1908000041 Rev.2021-04-26. Service bulletin. ELECTRICAL SYSTEM. Check Engine Lamp On, DTC?s P0480 Cooling Fan Circuit Open Or U0465 Loss Communication With Active Air Dam
S21080000602021-04-26. Service bulletin. ELECTRICAL SYSTEM. Service Park Assist Message Or Rear Park Assist Unavailable Message Displaying On The Cluster
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
S21050000012021-03-15. Service bulletin. ELECTRICAL SYSTEM. Hill Descent Control HDC Inoperative From IP Center Stack Switch
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
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
S21080000392021-03-15. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. Back Up Camera Inoperative Complaints, Radio Display Blue Or Blank When Placed In Reverse
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.
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.
S20230000482021-03-01. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES; STRUCTURE. Left Rambox Lid Unlatches By Itself
S2008000182 Rev.2021-03-01. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Driver Or Passenger Power Windows Do Not Go Up Or Down
S20080001822021-03-01. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Driver Or Passenger Power Windows Do Not Go Up Or Down
90043372021-03-01. Service bulletin. STRUCTURE:BODY:DOOR:HANDLE:EXTERIOR; ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; BACK OVER PREVENTION; STRUCTURE:BODY:TAILGATE. HANDLE, Tailgate For issues related to tailgate handle camera do not replace tailgate handle, the camera is serviceable and can be ordered through MOPAR separately as follows: 2019 - 68144068A$ 2020 - 68414414A$, 68144068A$ 2021 - 04672850A$
90043342021-03-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. Power Window Regulator or Motor Owners may complain that the Driver and or Passenger Windows are inoperative. Technician may find DTC?s B18BA-12 - Window Control - Circuit Short to Battery, B18BA-13 - Window Control - Circuit Open (stored or active). Replace the DDM or PDM per detailed repair information in Service Library or reference Star Online Publlication S2008000182. Replacing regulators or motors will not correct this issue.
S2108000025 Rev.2021-02-16. Service bulletin. ELECTRICAL SYSTEM. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S21080000252021-02-16. Service bulletin. ELECTRICAL SYSTEM. CEL Check Engine Lamp On, DTC P0158 O2 Sensor 2/2 Circuit High
S2108000006 Rev.2021-02-16. Service bulletin. ELECTRICAL SYSTEM. Cluster Speedometer Digital Value Appears Slightly Discolored
S2108000003 Rev.2021-02-16. Service bulletin. ELECTRICAL SYSTEM; STEERING. Cluster Displays Blind Spot Alert Off Incompatible Trailer Message, Left Steering Wheel Switches Do Not Allow Update Or Change
S21080000112021-02-16. Service bulletin. ELECTRICAL SYSTEM. Battery Light Illuminates, 12V Battery Not Charging, No Start
S20080001832020-12-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. The Stop/Start (ESS) Off Switch Does Not Illuminate When Pressed
S2008000126 Rev.2020-12-28. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. (Rev. B) RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start

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