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Service bulletins for the 2018 Ram 3500

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.

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

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

Bulletins, newest first
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
90038132022-08-08. Service bulletin. EQUIPMENT. 2018MY Front License Plate Bracket Ram HD ONLY: Do not order this part because you observe (4) attachments in the 2018 DJ, D2, DD, DF and DP Front Bumper and the supplied License Plate Bracket only has provisions for 2 attachments. The 2017 level part (68031880AA) with 2 attachments was intentionally shipped, is compatible, and should be used.
21-049-172022-07-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. Incorrect Transmission Oil Level Indicator This bulletin involves inspecting and replacing the transmission oil level indicator (dipstick) if needed. During a new vehicle preparation, the technician may notice the transmission fluid level is low.
23-050-172022-07-25. Service bulletin. EQUIPMENT; TRAILER HITCHES. Fifth Wheel Hitch Was Not Installed This bulletin involves installing a fifth wheel hitch. Some vehicles were built without a MOPAR 30K Direct MNT 5th Wheel Hitch (Sales Code XNH) installed.
08-109-172022-07-25. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. UAS, UAQ, UCS and UCQ Radio Over The Air Software Updates This bulletin provides information regarding the latest Flash 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 following enhancement are included in this update:Improved sound quality when using the Bluetooth® phone.
90038132022-07-25. Service bulletin. EQUIPMENT. 2018MY Front License Plate Bracket Ram HD ONLY: Do not order this part because you observe (4) attachments in the 2018 DJ, D2, DD, DF and DP Front Bumper and the supplied License Plate Bracket only has provisions for 2 attachments. The 2017 level part (68031880AA) with 2 attachments was intentionally shipped, is compatible, and should be used.
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.
90038142022-07-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Power Distribution Center For 2018 D2/DD/DF/DJ/DP, prior to replacing the Power Distribution Center (PDC), you MUST contact the STAR Center (800) 850-7827 for diagnostic assistance and pre- authorization. Failure to do so WILL result in your warranty claim being rejected.
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
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
S21080000452021-03-15. Service bulletin. EQUIPMENT:ELECTRICAL. Favorite Song On-Air Alert List Empty
S1625000007 Rev.2021-03-15. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P207F ? Reductant Quality Performance Set.
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$
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
18-061-202020-09-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE; EQUIPMENT; POWER TRAIN. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set:P0868 - Line Pressure Low (Module, Powertrain Control (PCM), 68RFE). P229F - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 2. P207F - Reductant Quality Performance. P2509 - PCM/PCM Power Input Signal Intermittent. P0401 - EGR System Performance. P0870 - OD Hydraulic Pressure Test. P040B - Exhaust Gas Recirculation Temperature Sensor "A" Circuit Performance. P2201 - Aftertreatment NOx Sensor Circuit Performance - Bank 1 Sensor 1. P1C54 - SCR NOx Catalyst Missing. P249E - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. P0128 - Thermostat Rationality. P24C7 - Particulate Matter Sensor Temperature Circuit Performance. Customers may also comment on the following:Engine misfire in cold ambient temperatures. In addition, the following software enhancements are also available:Scan tool fan actuation test fix. Enabling diagnostics forDTC P208B- Reductant Pump 1 Control Performance. Unable to turn on the ability to set ?MAX? road speed using wiTECH scan tool. Mass Air Flow (MAF) sensor Out Of Range (OOR) low calibration. Improved 5-4 shift (reduce shift flare) after extended operation in 5th or 6th gear. Engine Manifold Pressure Misfire Monitor (EMP MFM) retune(68RFE Only). Idle based misfire retune. Abort timer for Selective Catalytic Reduction (SCR) out NOx sensor missing change to 70 seconds. Map SCR missingFault/DTC - P1C54to tampering inducement. Particulate Matter (PM) sensor false fault improvement. CC inner loop used up faults. Ultrasonic Flow Meter (UFM) test results fix. Engine run state idle unstable software fix. Ability to write Engine Serial Number (ESN) through wiTE

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