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Service bulletins for the 2019 Ram 2500

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.

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

By type

By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
08-048-202020-05-26. Service bulletin. ELECTRICAL SYSTEM. UAX, UCX, UAV and UCV Radio Over the Air Software Version 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 radio software will be updated to 33.3. Customers may experience one or more of the following:Display screen is back with no backlighting. GPS unable to load and find location. Bluetooth® device is slow to pair. Loss of saved radio presets. No audio output coming from the radio. Can not control audio volume. Radio "locks up" or freezes. Rear view camera display will not turn off. This is an ?Information Only? Service Bulletin to inform the dealer how the FOTA update is performed. This document does not contain a LOP for reimbursement.
D-19-02 Rev. D2020-05-26. Service bulletin. ELECTRICAL SYSTEM. Fast Feedback Program ? 6.7L Cummins Engine - 2019 & 2020 HD Ram & 6.7L Cummins Diesel Engine Control Module (ECM) - 2018 Ram ? All Models (Rev. D)
S18080001522020-05-26. Service bulletin. ELECTRICAL SYSTEM. CEL (Check Engine Lamp) Illuminates, Recent PCM Replace Or Flash Update Performed, DTC P057B Brake Pedal Position Sensor Circuit Performance
S20210000022020-05-26. Service bulletin. ELECTRICAL SYSTEM. Valve Body Pressure Testing Plug Inspection
S20080000522020-05-26. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. Service Trailer Brake Warning Message Displayed On The Cluster
S20080000452020-05-26. Service bulletin. ELECTRICAL SYSTEM. Apps Or Icons Grayed Out
S20080000442020-05-26. Service bulletin. ELECTRICAL SYSTEM. Navigation Won't Save Address After Vehicle Sleep Cycle
S20080000412020-05-26. Service bulletin. ELECTRICAL SYSTEM. Device Not Supported Message On Radio Screen
S20080000372020-05-26. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. SXM Icon Missing After Radio Reset
S20080000352020-05-26. Service bulletin. ELECTRICAL SYSTEM. Far End Caller Can Not Hear Driver During Phone Call
S20080000342020-05-26. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TravelLink Will Not Load In Split Screen Mode Display Shows No Data Available
90042552020-05-26. Service bulletin. PARKING BRAKE; ELECTRICAL SYSTEM. SWITCH, Ignition, Push Button (Keyless Ignition Node) Prior to replacing parts for a B1A7D-2A Diagnostic trouble code on heavy duty trucks.Please call FCA Redacted Content , please email a scan and config report to FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90042512020-05-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. RFE Valvebody Plug Installation OEM RFE valve bodies require seven (7) 06030035 plugs installed and torqued to 45 in-lb (5Nm). Notify independant repair facilities when they order valve body.
21-016-202020-05-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC:P0733-00 - Gear 3 Shift Incorrect Ratio. The following software enhancements are available:Harsh garage shift engagements in to, either reverse or drive resultingin excessive shift bump. While in hill descent control, utilizing Electronic Range Select (ERS) buttons to modulate speed, the ERS buttons give a lower or highergear than required/desired. Under light to medium brake maneuvers on flat ground, customer complains of harsh4-3 (lines up to with ECO mode transition).
08-031-202020-05-26. Service bulletin. ELECTRICAL SYSTEM. Missing Upfitter Auxiliary Wiring This bulletin involves adding a jumper wire harness to the rear auxiliary wiring harness. The customer or upfitter may describe the following:The upfitter auxiliary fused wires are not populated on the rear of the chassis wiring harness equipped with Instrument Panel (IP) auxiliary switches. The wires are located on the right side of the rear chassis cross beam, above the fifth wheel.
21-016-202020-05-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC:P0733-00 - Gear 3 Shift Incorrect Ratio. The following software enhancements are available:Harsh garage shift engagements in to, either reverse or drive resultingin excessive shift bump. While in hill descent control, utilizing Electronic Range Select (ERS) buttons to modulate speed, the ERS buttons give a lower or highergear than required/desired. Under light to medium brake maneuvers on flat ground, customer complains of harsh4-3 (lines up to with ECO mode transition).
08-031-202020-05-18. Service bulletin. ELECTRICAL SYSTEM:WIRING. Missing Upfitter Auxiliary Wiring This bulletin involves adding a jumper wire harness to the rear auxiliary wiring harness. The customer or upfitter may describe the following:The upfitter auxiliary fused wires are not populated on the rear of the chassis wiring harness equipped with Instrument Panel (IP) auxiliary switches. The wires are located on the right side of the rear chassis cross beam, above the fifth wheel.
21-016-202020-04-27. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC:P0733-00 - Gear 3 Shift Incorrect Ratio. The following software enhancements are available:Harsh garage shift engagements in to, either reverse or drive resultingin excessive shift bump. While in hill descent control, utilizing Electronic Range Select (ERS) buttons to modulate speed, the ERS buttons give a lower or highergear than required/desired. Under light to medium brake maneuvers on flat ground, customer complains of harsh4-3 (lines up to with ECO mode transition).
S15080004802020-04-27. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Speed Control Operates Intermittently
08-020-202020-04-06. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER; ELECTRICAL SYSTEM. Body Control Module (BCM) Reconfigure for Enabling the Auto-On Comfort Settings This bulletin involves reconfiguring the BCM and possibly a radio reset, to enable the auto-on comfort settings. Customers may comment on one or more of the following:If below 4 °C (40 °F), the heated seats or heated steering wheel turn on by themselves. If above 26 °C (80 °F), the vented seats turn on by themselves. Cannot turn off the auto-on comfort feature. With the symptom/condition listed above, there?s no setting in the radio to turn the auto-on comfort feature off.
S20080000132020-04-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Key Programming, Security Pin Request, Pin Invalid
S19250000042020-04-06. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set
90041572020-04-06. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); POWER TRAIN; SUSPENSION; ELECTRICAL SYSTEM. MODULE, Air Suspension, [SEB] For replacement of Air Suspension Control Module (ASCM) due to the following DTCs, please contact FCA Redacted Content to aid in root-cause prior to repair at FCA Redacted Content or FCA Redacted Content U0132 (Loss of Comm) U0421 (Implausible Data) C220C (Software Supervision) C15DE-72 (Exhaust Solenoid Actuator Stuck Open) If no response in 15 minutes, proceed with repair. As per STAR Online case S1917000002: Do not replace any components. First record the DTC?s by creating and saving a vehicle scan report with WiTECH under the reports tab. Next, attempt to reset the ASCM by removing the F50 20A ASCM fuse in the Power Distribution Center. Then reinstall the fuse. Using WiTECH check for DTC?s. If U0132, U0421, U0422 DTCs are now stored, clear them. Perform a short test drive. If the codes do not return do not repair. Condition is under investigation by engineering.
21-034-19 REV. A2019-12-16. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. The following software enhancements are available:Harsh garage shift engagements in to either reverse or drive resulting in excessive shift bump. While in hill descent control, utilizing Electronic Range Select (ERS) buttons to modulate speed, the ERS buttons give a lower or higher gear than required/desired. Under light to medium brake maneuvers on flat ground, customer complains of harsh 4-3 (lines up to with ECO mode transition).
18-056-19 REV. A2019-12-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DiagnosticTrouble Code (DTC) has been set:P0456 - EVAP System Small Leak. In addition, the customer may notice one or more of the following conditions:Vehicle hesitation or surge at low vehicle speeds. Engine hesitation when turning steering wheel to end stop. Powertrain bump or hesitation around 16-24 kph (10-15 mph) vehicle speed. Maybe reported as rough or harsh transmission shifting in the same vehicle speed range.

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