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Service bulletins for the 2020 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.

1228 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
W73 Combo2021-03-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Customer Satisfaction Notification W73 Drivers Side Floor Mat
708012021-03-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Warranty Bulletin D-20-23 Part Order Restiction Program - 48V Power Pack Unit (PPU) - Select 2018-2020 Jeep Wrangler (JL) and 2019-2021 RAM (DT)
S20250000082021-03-01. Service bulletin. FUEL SYSTEM, DIESEL; EQUIPMENT. Excessive Diesel Exhaust Fluid (DEF) Consumption.
S20230000492021-03-01. Service bulletin. VISIBILITY; EQUIPMENT; ELECTRICAL SYSTEM. Driver And/Or Passenger Exterior Mirror Glass Intermittently Does Not Return To Original Position From Tilt Down Or Appears Stuck In Down Position
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.
S20230000442021-03-01. Service bulletin. EQUIPMENT. Valet Key Will Not Stay Locked In Fob
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.
S21080000062021-02-16. Service bulletin. EQUIPMENT. Cluster Speedometer Digital Value Appears Slightly Discolored
24-001-202020-12-28. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC Housing Service This bulletin informing the Technician about an HVAC housing redesign with components that need to be serviced together when servicing the HVAC housing. Customers may experience the following: Poor Air conditioning system performance (Slow or excess time to cool down). HVAC is slow to cool, left center instrument panel outlet is warmer than right side instrument panel outlets.
05-004-202020-12-28. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SERVICE BRAKES. Rear Brake (Moan) Noise This bulletin involves installing a rear brake anti-moan kit. The customer may comment on the following: A low frequency moan or howl noise from the rear brakes, primarily in cold/humid conditions, typically on the first brake stop in forward or reverse, after vehicle has been sitting for lengthy periods of time (cold brakes).
S1908000102 Rev.2020-12-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. (Rev. A) Audio Mute On All Sources Except AM
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
S1923000044 Rev.2020-12-28. Service bulletin. STRUCTURE:FRAME AND MEMBERS; EQUIPMENT. (Rev. D) Dust Intrusion Or Air Leak In Cab
S1625000005 Rev.2020-12-28. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. (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.
S20080001712020-12-28. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC Blower Motor Operates Intermittently Or Changes Speeds
S2025000001 Rev.2020-12-28. Service bulletin. EXTERIOR LIGHTING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT. (Rev. B) Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
9004324 Rev. A2020-12-28. Service bulletin. STRUCTURE:BODY:DOOR; STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; EQUIPMENT. 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.
24-001-202020-12-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. HVAC Housing Service This bulletin informing the Technician about an HVAC housing redesign with components that need to be serviced together when servicing the HVAC housing. Customers may experience the following: Poor Air conditioning system performance (Slow or excess time to cool down). HVAC is slow to cool, left center instrument panel outlet is warmer than right side instrument panel outlets.
05-004-202020-12-21. Service bulletin. SERVICE BRAKES; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Rear Brake (Moan) Noise This bulletin involves installing a rear brake anti-moan kit. The customer may comment on the following:A low frequency moan or howl noise from the rear brakes, primarily in cold/humid conditions, typically on the first brake stop in forward or reverse, after vehicle has been sitting for lengthy periods of time (cold brakes).
05-003-202020-12-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES; EQUIPMENT. Brake Pedal with Booster Service This bulletin is informing the technician that when servicing the brake pedal or the brake booster both components need to be serviced together.
S1908000102 Rev.2020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL:AUX AUDIO JACK/PLUG. (Rev. A) Audio Mute On All Sources Except AM
S2008000126 Rev.2020-12-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. (Rev. B) RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start
S20080001722020-12-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
S20080001712020-12-21. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC Blower Motor Operates Intermittently Or Changes Speeds
9004324 Rev. A2020-12-21. Service bulletin. STRUCTURE:BODY:DOOR; EQUIPMENT. 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.

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