Ram 4500 Service Bulletins
949 manufacturer communications on file.
- February 28, 2026•Document ID: 11029753Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-089-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Heating, Ventilation And Cooling (HVAC) Software Updates Customers may experience the following: SYMPTOM: ● Heated seat and/or heated steering wheel are inoperative. This bulletin involves reprogramming the HVAC with the latest software.
Associated Products (4)Associated Documents - February 28, 2026•Document ID: 11029752Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-088-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Heating, Ventilation And Cooling (HVAC) Software Updates Customers may experience the following: SYMPTOM: ● Heated seat and/or heated steering wheel are inoperative. This bulletin involves reprogramming the HVAC with the latest software.
Associated Products (4)Associated Documents - February 27, 2026•Document ID: 11029777Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S2609000003 REV.A
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryActive Diagnostic Trouble Code (DTC) U3FFF-00 Setting In The PCM
Associated Products (8)Associated Documents - February 26, 2026•Document ID: 11029772Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S2625000002
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryMalfunction Indicator Lamp (MIL) Illuminated, Diagnostic Trouble Codes (DTCs) P208B, P2D1F, P218F, P202E, P2048, P20E8, Setting In The Powertrain Control Module (PCM)
Associated Products (10)Associated Documents - February 25, 2026•Document ID: 11029785OtherELECTRICAL SYSTEM; SERVICE BRAKES
- Mfr Comm. #:
- 03D Campaign
- Date Added:
- March 5, 2026
- Manufacturer:
- CHRYSLER
SummaryFleet Campaign Parts Ordering Process (03D)
Associated Products (26)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Jeep Cherokee2026 Jeep Wagoneer S2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Chrysler Pacifica2025 Chrysler Voyager2025 Jeep Wagoneer S2025 Ram 15002025 Ram 25002025 Ram 35002025 Ram 45002025 Ram 55002024 Chrysler Pacifica2024 Chrysler Voyager2024 Jeep Wagoneer S+ 6 moreAssociated Documents - February 25, 2026•Document ID: 11029773Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- S2621000002
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryThe customer concern is Service Transmission, preventing the engine from shutting off. NOTE: The transmission will actually be in Park and able to hold the vehicle, but the cluster display would indicate Neutral, preventing the engine from shutting off
Associated Products (8)Associated Documents - February 25, 2026•Document ID: 11029771Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S268A000009
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryCustomer States Navigation is Inaccurate, Showing Wrong City or State.
Associated Products (15)Associated Documents - February 21, 2026•Document ID: 11029705Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S228A000025 REV.A
- Date Added:
- March 5, 2026
- Manufacturer:
- JEEP
SummaryHarman R1H Uconnect 5 Radio Software Flash Error Codes
Associated Products (87)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Charger2026 Dodge Durango2026 Jeep Compass2026 Jeep Gladiator2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer S2026 Jeep Wrangler2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Alfa Romeo Tonale2025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Charger+ 67 moreAssociated Documents - February 21, 2026•Document ID: 11029672Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-077-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Diesel Exhaust Fluid Control Unit (DCU) 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): ● **P20BC-00 - Reductant Suction Line Heater Control Circuit High. - in Active or Stored status. ● P202C-00 - Reductant Tank Heater Control Circuit High. - in Active or Stored status. ● P20E8-00 - Reductant Pressure Too Low. - in Active or Stored status. ● P209F-00 - Reductant Tank Heater Control Circuit Performance. - in Active or Stored status. ● P208B-00 - Reductant Pump 1 Control Performance. - in Active or Stored status.** Customers may also comment one or more the following: ● "Service Diesel Exhaust Fluid (DEF) System See Dealer" message in the Electronic Vehicle Information Center (EVIC). NOTE: This message will appear after the DEF pump fails to build pressure, a fault is set and the message continues to be displayed for 80 km (50 mi) of driving. ● "Speed Will Be Limited To 8 kph (5 mph)" message displayed in the EVIC. CAUTION! If the vehicle is not taken to the dealership BEFORE reaching 241 km (150 mi) from when the "Service Diesel Exhaust Fluid (DEF) System See Dealer" message is displayed, the vehicles speed will be limited to 8 kph (5 mph). ● Reduced acceleration from turbo. This bulletin reprogramming the DCU with the latest available software.
Associated Products (4)Associated Documents - February 21, 2026•Document ID: 11029671Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-076-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Diesel Exhaust Fluid Control Unit (DCU) 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): ● **P20BC-00 - Reductant Suction Line Heater Control Circuit High. - in Active or Stored status. ● P202C-00 - Reductant Tank Heater Control Circuit High. - in Active or Stored status. ● P20E8-00 - Reductant Pressure Too Low. - in Active or Stored status. ● P209F-00 - Reductant Tank Heater Control Circuit Performance. - in Active or Stored status. ● P208B-00 - Reductant Pump 1 Control Performance. - in Active or Stored status.** ● P218F-00 - Reductant No Flow Detected. ● P249E-00 - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. **Customers may also comment one or more the following: ● "Service Diesel Exhaust Fluid (DEF) System See Dealer" message in the Electronic Vehicle Information Center (EVIC). NOTE: This message will appear after the DEF pump fails to build pressure, a fault is set and the message continues to be displayed for 80 km (50 mi) of driving. ● "Speed Will Be Limited To 8 kph (5 mph)" message displayed in the EVIC. CAUTION! If the vehicle is not taken to the dealership BEFORE reaching 241 km (150 mi) from when the "Service Diesel Exhaust Fluid (DEF) System See Dealer" message is displayed, the vehicles speed will be limited to 8 kph (5 mph).** ● Reduced acceleration from turbo. This bulletin involves inspecting and possibly reprogramming the DCU with the latest available software.
Associated Products (4)Associated Documents - February 19, 2026•Document ID: 11029709Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- 109386
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryBEZEL - MEDIA PORT
Associated Products (8)Associated Documents - February 19, 2026•Document ID: 11029704Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S268A000008
- Date Added:
- March 5, 2026
- Manufacturer:
- DODGE
SummaryUconnect Box Requires Service, Please Visit an Authorized Dealer Message on Display Message With DTCs B1498-13, B1498-19 or B1570-93
Associated Products (46)2026 Chrysler Pacifica2026 Chrysler Voyager2026 Dodge Durango2026 Jeep Wrangler2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Chrysler Pacifica2025 Chrysler Voyager2025 Dodge Durango2025 Jeep Wrangler2025 Ram 15002025 Ram 25002025 Ram 35002025 Ram 45002025 Ram 55002024 Chrysler Pacifica2024 Chrysler Voyager+ 26 moreAssociated Documents - February 19, 2026•Document ID: 11029681Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; POWER TRAIN
- Mfr Comm. #:
- 21-017-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Transmission Control Module (TCM) Updates Customers may comment on the following: SYMPTOM: ● Hesitation or delay when accelerating. Customer may state that this occurs when driving at speeds between 5 kph (5 mph) and 20 kph (12 mph) after having previously accelerated from a very low speed and having backed off of the accelerator pedal for a short time. This bulletin involves reprogramming the TCM with the latest available software.
Associated Products (4)Associated Documents - February 18, 2026•Document ID: 11029698Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S2423000027 REV.D
- Date Added:
- March 5, 2026
- Manufacturer:
- JEEP
SummaryHorn Sound Is Weak, Off Tone, Inoperative, Or Intermittent.
Associated Products (50)2026 Jeep Compass2026 Jeep Gladiator2026 Jeep Grand Cherokee2026 Jeep Grand Cherokee L2026 Jeep Grand Wagoneer2026 Jeep Wagoneer S2026 Jeep Wrangler2026 Ram 15002026 Ram 25002026 Ram 35002026 Ram 45002026 Ram 55002025 Jeep Compass2025 Jeep Gladiator2025 Jeep Grand Cherokee2025 Jeep Grand Cherokee L2025 Jeep Grand Wagoneer2025 Jeep Wagoneer2025 Jeep Wagoneer S2025 Jeep Wrangler+ 30 moreAssociated Documents - February 18, 2026•Document ID: 11029678Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; ENGINE
- Mfr Comm. #:
- 18-023-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Powertrain Control Module (PCM) 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): ● P0128-00 - Thermostat Rationality. ● P24A4-00 - Particulate Filter Restriction - Soot Accumulation Too High. ● P208B-00 - Reductant Pump 1 Control Performance.** Customers may experience one or more of the following: ● Lower than expected fuel economy when vehicle is lightly loaded, operating in stop and go traffic and at lower speeds. ● Long cranking / extended starting times. **Other software enhancement included with this update: ● "Air Handling Performance Test" is now available to help troubleshoot air handling DTCs.** This bulletin involves reprogramming the PCM with the latest available software.
Associated Products (2)Associated Documents - February 17, 2026•Document ID: 11029697Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S2625000001
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryActive/Pending Diagnostic Trouble Code (DTC) P208B And/or P20E8 Setting In The Powertrain Control Module (PCM)
Associated Products (8)Associated Documents - February 17, 2026•Document ID: 11029696Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- S2609000003
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryActive Diagnostic Trouble Code (DTC) U3FFF-00 Setting In The PCM
Associated Products (8)Associated Documents - February 17, 2026•Document ID: 11029682Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- 23-004-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryOuter Belt Molding Has Excessive Gap Customers may comment on the following: SYMPTOM: ● The outer belt molding appears warped or deformed causing a gap between the edge of the door and the molding. NOTE: This condition can appear on any of the doors. This bulletin involves replacing one or more door outer belt moldings.
Associated Products (8)Associated Documents - February 17, 2026•Document ID: 11029666Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 08-071-26
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryFlash: Telematics Box Module 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): ● B1560 - 11 Cellular Antenna 1 - short to ground. ● B1561 - 11 Cellular Antenna 2 - short to ground. ● B1562 - 14 GPS Antenna short to ground or open. ● B22A9 - 96 ECU internal performance-component internal failure. Customers may also experience the following: ● "Uconnect Box Required Service" Message in Radio Display. This bulletin involves reprogramming the TBM with the latest available software.
Associated Products (4)Associated Documents - February 16, 2026•Document ID: 11029708Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 109385
- Date Added:
- March 5, 2026
- Manufacturer:
- RAM
SummaryHEADLAMP
Associated Products (8)Associated Documents