Ram 4500 Service Bulletins
940 manufacturer communications on file.
- August 21, 2026•Document ID: 11036360Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 07-006-26
- Date Added:
- August 26, 2026
- Manufacturer:
- RAM
SummaryEngine Overheat Customers may comment on the following: ● Vehicle overheating. ● Temperature gauge is reading hot. ● Overheat symbol is illuminated in Instrument Panel Cluster (IPC). This bulletin involves inspecting the thermostat housing part number and, if necessary, replacing the thermostat.
Associated Products (4)Associated Documents - August 20, 2026•Document ID: 11036352Service Bulletin/Repair InstructionsSTRUCTURE:BODY; ELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-315-26
- Date Added:
- August 26, 2026
- Manufacturer:
- RAM
SummaryFlash: Integrated Trailer Control Module (ITCM) Update Customers may experience the following: SYMPTOM: ● 'Check Trailer Turn Lamp' message in the Instrument Panel Cluster (IPC) with no trailer connected. This bulletin involves inspecting and possibly reprogramming the ITCM with the latest software.
Associated Products (4)Associated Documents - August 18, 2026•Document ID: 11036364Service Bulletin/Repair InstructionsSTRUCTURE:BODY; ELECTRICAL SYSTEM
- Mfr Comm. #:
- 113855
- Date Added:
- August 26, 2026
- Manufacturer:
- RAM
SummarySWITCH AND BEZEL - FRONT DOOR
Associated Products (10)Associated Documents - August 18, 2026•Document ID: 11036363Service Bulletin/Repair InstructionsSTRUCTURE:BODY; ELECTRICAL SYSTEM
- Mfr Comm. #:
- 113854
- Date Added:
- August 26, 2026
- Manufacturer:
- RAM
SummarySWITCH AND BEZEL - FRONT DOOR
Associated Products (10)Associated Documents - August 17, 2026•Document ID: 11036366Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 9100882
- Date Added:
- August 26, 2026
- Manufacturer:
- RAM
SummaryPULLEY Fan If replacing 68209745AA, also replace 68723388AA, 05086958AB, and 68000833AD. Retain bolts, mark each with its original location, and submit a STAR ticket for parts return. Bolt P/Ns: 68005469AA, 03928873, 68445520AA, 04886003AA.
Associated Products (8)Associated Documents - August 7, 2026•Document ID: 11036177Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 9100879
- Date Added:
- August 13, 2026
- Manufacturer:
- RAM
SummaryFront Passenger Display Module Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders, Warranty, Mopar, Customer Pay and Service Contract. Order "68" part number for New, Unsold units only.
Associated Products (10)Associated Documents - August 6, 2026•Document ID: 11036174Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 113795
- Date Added:
- August 13, 2026
- Manufacturer:
- RAM
SummaryHEADLAMP
Associated Products (8)Associated Documents - August 6, 2026•Document ID: 11036173Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 113743
- Date Added:
- August 13, 2026
- Manufacturer:
- RAM
SummaryHEADLAMP
Associated Products (8)Associated Documents - August 1, 2026•Document ID: 11035977Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; POWER TRAIN
- Mfr Comm. #:
- 08-302-26
- Date Added:
- August 6, 2026
- Manufacturer:
- RAM
SummaryFlash: Electronic Shift Module (ESM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● U1057-00 - High Speed Fd-Can3 Communication Bus Performance. Customers may also comment on the following: ● If the vehicle has a low or drained battery and requires a jump start, once jump started, the vehicle will not shift out of Park. This bulletin involves reprogramming the ESM with the latest available software.
Associated Products (4)Associated Documents - August 1, 2026•Document ID: 11035976Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; POWER TRAIN
- Mfr Comm. #:
- 08-301-26
- Date Added:
- August 6, 2026
- Manufacturer:
- RAM
SummaryFlash: Electronic Shift Module (ESM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● U1057-00 - High Speed Fd-Can3 Communication Bus Performance. Customers may also comment on the following: ● If the vehicle has a low or drained battery and requires a jump start, once jump started, the vehicle will not shift out of Park. This bulletin involves reprogramming the ESM with the latest available software.
Associated Products (4)Associated Documents - July 29, 2026•Document ID: 11035982Service Bulletin/Repair InstructionsENGINE; ELECTRICAL SYSTEM
- Mfr Comm. #:
- 113754
- Date Added:
- August 6, 2026
- Manufacturer:
- RAM
SummarySENSOR - EXHAUST TEMPERATURE
Associated Products (6)Associated Documents - July 29, 2026•Document ID: 11035981Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- 113744
- Date Added:
- August 6, 2026
- Manufacturer:
- RAM
SummarySENSOR - TURBOCHARGER SPEED
Associated Products (24)Associated Documents - July 29, 2026•Document ID: 11035980Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- 113742
- Date Added:
- August 6, 2026
- Manufacturer:
- RAM
SummarySENSOR - TURBOCHARGER SPEED
Associated Products (24)Associated Documents - July 29, 2026•Document ID: 11035974Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; POWER TRAIN
- Mfr Comm. #:
- 18-038-26 REV. A
- Date Added:
- August 6, 2026
- Manufacturer:
- RAM
SummaryFlash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set SYMPTOM: one or more of the following Diagnostic Trouble Codes (DTCs): ● P219A - Bank 1 Air-Fuel Ratio Imbalance. ● P219B - Bank 2 Air-fuel Ratio Imbalance. ● P032F - Combustion Engine Producing Insufficient Torque. NOTE: This revision has an updated and more effective fix for DTC P219B than the prior version. Customers may experience one or more of the following: ● **Power Take Off (PTO) may cancel during engagement with high PTO loads.** ● Engine speed surging, unstable, hunting, or oscillating while coasting at low vehicle speeds. ● Stationary Idle PTO feature is not activating when the user configuration is selected to require parking brake be set (DD/DP Only). ● PTO not auto-resuming after hard-wired remote start (DD/DP Only). ● Driveline clunk or bump when coasting to a stop in cruise control mode. ● Engine idle undershoot or delayed response with power steering input. In addition, the following software enhancement(s) is available: ● Increase the duration that PTO related messages are displayed on the Instrument Panel Cluster (IPC) (DD/DP Only). This bulletin involves reprogramming the PCM with the latest available software.
Associated Products (4)Associated Documents - July 23, 2026•Document ID: 11035335Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- 113546
- Date Added:
- July 29, 2026
- Manufacturer:
- RAM
SummaryHEADLAMP - NONE
Associated Products (8)Associated Documents - July 23, 2026•Document ID: 11035334Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- 113547
- Date Added:
- July 29, 2026
- Manufacturer:
- RAM
SummaryHEADLAMP - NONE
Associated Products (8)Associated Documents - July 18, 2026•Document ID: 11035169Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-286-26
- Date Added:
- July 23, 2026
- Manufacturer:
- RAM
SummaryFlash: DEF Dosing Control Unit (DCU) Software Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P218F 00 - Reductant No Flow Detected ● P202E 00 - Reductant Injection Valve Circuit Performance In addition, the following software enhancements are available: ● System State feedback fix, data variant selection fix. This bulletin involves reprogramming the BPCM with the latest available software.
Associated Products (4)Associated Documents - July 18, 2026•Document ID: 11035168Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-285-26
- Date Added:
- July 23, 2026
- Manufacturer:
- RAM
SummaryFlash: DEF Dosing Control Unit (DCU) Software Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P218F 00 - Reductant No Flow Detected ● P202E 00 - Reductant Injection Valve Circuit Performance In addition, the following software enhancements are available: ● System State feedback fix, data variant selection fix. This bulletin involves reprogramming the DCU software from 5.13 Or 5.14 To 5.15.
Associated Products (4)Associated Documents - July 17, 2026•Document ID: 11035162Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-272-26 REV. A
- Date Added:
- July 23, 2026
- Manufacturer:
- RAM
SummaryAir Handling Performance Test (APT) Availability In wiTECH Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0234-00 - Turbocharger Overboost Condition. ● P0299-00 - Turbocharger Underboost. ● P0101-00 - Mass Air Flow Sensor "A" Circuit Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P2262-00 - Turbocharger Boost Pressure Not Detected - Mechanical. ● P0471-00 - Exhaust Pressure Sensor 1 Performance. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2457-00 - Exhaust Gas Recirculation Cooling System Performance. ● P2263-00 - Turbo Boost System Performance. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● P24A2-00 - Diesel Particulate Filter Regeneration Incomplete - Bank 1. ● P0401-00 - EGR System Performance. ● P0402-00 - EGR Flow Excessive Detected.
Associated Products (12)Associated Documents - July 14, 2026•Document ID: 11035197Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S2508000109 REV.B
- Date Added:
- July 23, 2026
- Manufacturer:
- RAM
SummaryInstrument Cluster Fuel and Coolant Temperature Gauge Do Not Reset To The Home Position And Show Incorrect Values
Associated Products (5)Associated Documents