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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: Glass, wipers and mirrors are shown. Show all

Bulletins, newest first
S16230000282022-08-22. Service bulletin. VISIBILITY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot
S21080001862022-08-22. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Power Windows Do Not Operate, Stop Start Inoperative
90040742022-08-22. Service bulletin. VISIBILITY. MIRROR, Outside Rearview - w/ Memory If the outside rearview mirror is being replaced for concern of "Mirrors tilt in reverse but do not return to the pre-set position after shifting out of reverse gear or continue to tilt downwards even after shifting out of reverse gear". Do not replace the mirror as it will not correct the issue. A software update has been released. Please review TSB 08-116-21 for the repair procedure which would involve reprogramming the DDM and PDM with the latest available software.
S2023000005 Rev.2022-07-18. Service bulletin. STRUCTURE:BODY; VISIBILITY:REAR WINDOW WIPER/WASHER:LINKAGES. Water Leak On Sliding Rear Window Or Back Of Cab
S2108000003 Rev.2022-07-18. Service bulletin. WHEELS; LANE DEPARTURE; STEERING; TRAILER HITCHES; VISIBILITY. Cluster Displays Blind Spot Alert Off Incompatible Trailer Message, Left Steering Wheel Switches Do Not Allow Update Or Change
S21080000032022-07-18. Service bulletin. VISIBILITY; EQUIPMENT ADAPTIVE/MOBILITY; WHEELS; STEERING; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS. Cluster Displays Blind Spot Alert Off Incompatible Trailer Message, Left Steering Wheel Switches Do Not Allow Update Or Change
90043422022-07-18. Service bulletin. EQUIPMENT; VISIBILITY:WINDSHIELD. WINDSHIELD Windshield cracked or blemish. When customer comes in for a cracked windshield, please note the location of crack and take pictures before repair. Please send pictures to FCA Redacted Content or load to the warranty claims system.
90045392022-06-27. Service bulletin. EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. HOUSING, Air Inlet For concern of whistle noise from right side of vehicle at 45+mph, please contact one of the following: FCA Redacted Content If no response in 15 minutes, proceed with repair. Please investigate HVAC to firewall connection between the fresh/recirculation housing and the firewall. Identify any obstructions that could be causing a gap. Loosen HVAC housing and retorque and/or install additional packing 68396044A$ at the air inlet housing to the firewall to eliminate any potential gap. Please email pictures of the issue with results to FCA Redacted Content.
08086212022-05-31. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL); ELECTRICAL SYSTEM:SOFTWARE. Flash: Driver Door Module DDM and Passenger Door Module PDM Updates This bulletin involves reprogramming the DDM and PDM with the latest available software. Customers may notice: Exterior mirrors do not return to the original position after shifting out of reverse gear. Exterior mirrors continue to tilt downwards even after shifting out of reverse gear. For vehicles on the RRT VIN List this software is to improve the function and reliability of the power windows operation.
S17230000012022-05-31. Service bulletin. VISIBILITY. Left Hand Drivers Side Mirror Takes Longer to Defrost Or Clear Than Right Side Passenger
S21230000412022-05-31. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Wind Or Whistle Noise From Sunroof And Or Rear Cab
754462022-05-31. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. GLASS - SUNROOF
08-086-21 REV. C2021-12-13. Service bulletin. VEHICLE SPEED CONTROL; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; POWER TRAIN; AIR BAGS; VISIBILITY; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Flash: Driver Door Module (DDM) and Passenger Door Module (PDM) Updates This bulletin involves reprogramming the DDM and PDM with the latest available software. Customers may notice:Exterior mirrors do not return to the original position after shifting out of reverse gear. Exterior mirrors continue to tilt downwards even after shifting out of reverse gear. For vehicles on the RRT VIN List this software is to improve the function and reliability of the power windows operation.
S21230000762021-12-13. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. Both Exterior Mirrors Not Power Folding
S2023000049 Rev.2021-05-24. Service bulletin. VISIBILITY. Driver And/Or Passenger Exterior Mirror Glass Intermittently Does Not Return To Original Position From Tilt Down Or Appears Stuck In Down Position
08-047-212021-04-26. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; VEHICLE SPEED CONTROL; VISIBILITY. Door Control Module Window Inoperative This bulletin involves replacing one or both of the door modules. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) have been set: B18BA-12 - Window Control - Circuit Short to Battery B18BA-13 - Window Control - Circuit Open In addition the customer may notice one or more of the following:Driver and/or passenger windows stop working. If window switch is held in the up position for two seconds the obstructionautodown function, may not work. Windows may go up slower than expected.
S1723000001 Rev.2021-04-26. Service bulletin. VISIBILITY. Left Hand Drivers Side Mirror Takes Longer to Defrost Or Clear Than Right Side Passenger
S1623000028 Rev.2021-04-26. Service bulletin. VISIBILITY. Outside Power Fold Rearview Mirror Appears Loose Or Shakes
S21230000182021-04-26. Service bulletin. VISIBILITY. Wind Noise From Driver Side Windshield Cowl Area
S21230000132021-04-26. Service bulletin. VISIBILITY. Sunroof And Or Sunshade Does Not Move
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
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
S20230000502021-03-01. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. Secondary Seal To Address DT Dual Pane Sunroof Water Leaks Through Car Washes
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

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