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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

Bulletins, newest first
931202023-10-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FCA Caribbean Warranty Bulletin ID-23-20 "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC
930232023-10-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Bulletin D-16-03 - "Can / Am" Warranty Coverage - 594 / 595 / 596 WCC (Rev. B)
S23070000022023-10-02. Service bulletin. ENGINE AND ENGINE COOLING. Suspected engine coolant leak.
S23080001102023-10-02. Service bulletin. ENGINE AND ENGINE COOLING. Check Engine Light On, P0113 Intake Air Temperature Sensor 1 Circuit High
S23080001022023-10-02. Service bulletin. SEATS; SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. The Heated Seats Do Not Meet The Customers Expectations
S23080001012023-10-02. Service bulletin. UNKNOWN OR OTHER; SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. The Replacement CSWM/HSM Sets DTC?s U1446-00, B1EB4-1B, B1EB3-1B, B11DC-13
S18080000972023-10-02. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION; BACK OVER PREVENTION. Back-Up Camera Inoperative Complaints, Radio Display Blue or Blank When Placed in Reverse
S20230000372023-10-02. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; STRUCTURE:BODY:ROOF AND PILLARS; BACK OVER PREVENTION. Wind Whistle Noise From Dash A Pillar Area While Driving
S21080000932023-10-02. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; UNKNOWN OR OTHER. Apple CarPlay Does Not Work Or Not Connecting
S23080000422023-10-02. Service bulletin. STEERING:ELECTRIC POWER ASSIST SYSTEM; UNKNOWN OR OTHER; STEERING:STEERING CONTROL MODULE. EPS And Other CAN C Modules Offline, U0001-00, U0002-00, and U0131-00 Can C Bus Diagnostic Trouble Codes (DTCs).
S18080001522023-10-02. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; BACK OVER PREVENTION. CEL (Check Engine Lamp) Illuminated, P057B Brake Pedal Position Sensor Performance
08183232023-09-25. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; BACK OVER PREVENTION:SOFTWARE. Radio Over The Air Updates LR34.4 to LR35.41 Customers may experience one or more of the following: ? Mobile Wi-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software version will be updated from LR34.4 to LR35.41 and the radio cell modem firmware level from MR5 to MR6. NOTE: National launch for this FOTA update is expected to begin August 16, 2023.
ZD72023-09-25. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Customer Satisfaction Notification ZD7 - Radio Software update
S23080000422023-09-25. Service bulletin. EQUIPMENT:ELECTRICAL. EPS And Other CAN C Modules Offline, U0001 And U0002 Can C Bus Diagnostic Trouble Codes (DTCs)
S22080000112023-09-25. Service bulletin. EQUIPMENT:ELECTRICAL. Wireless Qi Charger Not Charging
91001962023-09-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Lubrication and Maintenance Fluids If MOPAR fluids and chemicals are not readily available, please review Service Library for specifications so a suitable alternative can be used
91001812023-09-25. Service bulletin. POWER TRAIN; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). Transfer case rear output seal For customer concerns related to Transfer Case Rear Output Seal leak please call FCA Redacted Content prior to repair. If no response within 15 minutes, proceed with the repair.
23074232023-08-21. Service bulletin. STRUCTURE. Water Leak at Center High Mounted Stop Lamp (CHMSL) Warranty Extension XG1 Customers may experience one or more of the following: ? Water on the headliner. ? Water at the back of the cab. ? A leak from the third brake/cargo light/CHMSL. This bulletin involves replacing the CHMSL assembly.
08140232023-08-21. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. Radio Over The Air JR34.41F Updating to JR34.42F Software Version ? Mobile WiFi inoperative upon start up. ? WiFi hotspot gives ?No Internet? connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from JR34.41F to JR34.42F. NOTE: The National campaign for this FOTA update launched July 5, 2023.
ReferenceZD72023-08-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Customer Satisfaction Notification ZD7 - Radio Software Update
917452023-08-21. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; UNKNOWN OR OTHER. FCA Caribbean Warranty Bulletin ID-23-13 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT)
917422023-08-21. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS; UNKNOWN OR OTHER. Warranty Bulletin D-23-11 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT)
S238A0000282023-08-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; UNKNOWN OR OTHER. Radio Black Screen, Freezing, Reset, Cutting Out Or Inoperative Intermittently
S23230000202023-08-21. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY:STEP/LADDER. Power Side Steps Reverse, Stop In Motion, And/Or Do Not Deploy Or Stow
S23090000022023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. MIL lamp-on. Engine noise, rattle. Misfire or rough running.

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