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Service bulletins for the 2018 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.

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

By type

By component

By trouble code

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

Bulletins, newest first
S21080001982022-09-15. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT. Media Device Connection Guidelines For Bluetooth, Apple CarPlay, Android Auto Or USB To The Radio Head Unit
08-133-212022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. UAQ and UCQ Radio Enhancements This bulletin involves inspecting and if required, updating the radio software level to: 39.6.The repair procedure must be followed step by step. If the radio is not updated with the correct software level at the correct time the radio can be damaged. If the radio was damaged by not following the repairprocedure the radio may need to be replaced. Customers may experience one or more of the following: Lost radio presets. SXM favorite song not displaying/playing. Radio display screen is black, intermittent. Radio freeze intermittent. Incorrect navigation address/location/directions. Bluetooth pair or connection issue. Radio channel change by itself. SXM icon inoperative. Backup camera has black display screen. High pitch chime noise. Contact list not loading. Device not supported message. Remote app inoperative. Travel-Link fuel price incorrect. Backup camera gridlines missing. Unable to adjust volume. In addition the following enhancements are included: Heavy Duty (HD)Truck USB HUB improvements. HD Truck heated steering wheel improvements.
S21080002042022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Lockup In The Software Installation Screen After Accepting FOTA Update (Incorrect "S2008000204" indicated on published document)
S21080001982022-08-22. Service bulletin. EQUIPMENT:ELECTRICAL. Media Device Connection Guidelines For Bluetooth, Apple CarPlay, Android Auto Or USB To The Radio Head Unit
D-17-212022-08-08. Service bulletin. EQUIPMENT. Radio Pre-Authorization Program - Select 7.0/8.4/8.4N Radios (New and Exchange) - 2018 Model Year Vehicles
90032932022-07-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Pressure Transducer A/C inoperative and diagnosis leads to pressure transducer. Call Steve Rice at cell (248) 867-0061 before replacing the pressure transducer. If no response in 15 minutes, please proceed with repair.
90038172022-07-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Power Distribution Center For 2018 DS, prior to replacing the Power Distribution Center (PDC), you MUST contact the STAR Center (800) 850-7827 for diagnostic assistance and preauthorization. Failure to do so WILL result in your warranty claim being rejected.
23-006-212022-07-18. Service bulletin. EQUIPMENT; STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS. Tailgate Cable Has Excessive Slack or is Loose This bulletin involves replacing one of the tailgate cables with a new tailgate service cable. The customer may comment on one or more of the following:One tailgate cable has too much slack or is loose. The tailgate cables are different lengths.
S228A0000042022-06-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Panasonic VP4R Wi-Fi New Enrollment Pause
S2108000127 Rev.2021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21080001302021-06-28. Service bulletin. EQUIPMENT. Bubbles Or Delamination On The Radio Display
S21080001272021-06-28. Service bulletin. EQUIPMENT. Radio Reboot Continually
S21080001192021-06-28. Service bulletin. EQUIPMENT. Apple CarPlay Malfunctioning, Does Not Launch Or Is Cutting In An Out On Wired And Wireless Connection, Radio Stuck When IPhone Is Connected
S21080000932021-05-24. Service bulletin. BACK OVER PREVENTION:DISPLAY FUNCTION; EQUIPMENT. Apple CarPlay Does Not Work Or Not Connecting
S1908000048 Rev.2021-04-26. Service bulletin. EQUIPMENT. Chime Stuck On In The Audio System
S21080000802021-04-26. Service bulletin. EQUIPMENT. Radio Replacement Reset Routine, Radio Has Missing Icons Or Are Grayed Out
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
S21080000452021-03-15. Service bulletin. EQUIPMENT:ELECTRICAL. Favorite Song On-Air Alert List Empty
90043512021-03-15. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES. PLATE - CLUTCH PRESSURE For 68RFE trans use selective fit pressure plates between the overdrive and reverse clutch packs and hence use all three 52119929A$, 52119930A$, 04799116A$ maintain clearance For 65RFE & 66RFE no selectives for this pressure plate: 65RFE use 04799116A$ 66RFE use 52119929A$
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.
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.
S1908000028 Rev.2020-12-28. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. (Rev. A) Power Inverter Load Ratings
08-094-202020-11-30. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); EQUIPMENT. Flash: Drivetrain Control Module (DTCM) Update This bulletin involves reprogramming the DTCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set::If the customer has any concerns with the transfer case or if the tech performs any repairs on the transfer case, the software must be updated.C140E - Transfer Case Motor Blocked. If DTC C140E is present, follow normal diagnostic procedures before updating the DTCM.In addition the customer may describe the following:The ?Service 4WD? message/fault is displayed in the Instrument Panel Cluster (IPC). Transfer case shift fork tabs broken during range shift. Noisy (clunking/ratcheting) transfer case range shifts. Failure to complete transfer case range shifts. The following software enhancement is available:This update will help reduce premature transfer case failure.
S1908000048 Rev.2020-10-26. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. (Revision A) Chime Stuck On In The Audio System
S20080001412020-10-26. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Navigation Shows Incorrect Location

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