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Service bulletins for the 2020 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.

1228 on file from NHTSA, as of 2026-10-19.

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By component

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

Bulletins, newest first
1140722026-08-26. Service bulletin. ELECTRICAL SYSTEM. MOTOR - WINDOW REGULATOR
1140732026-08-26. Service bulletin. ELECTRICAL SYSTEM. MOTOR - WINDOW REGULATOR
S26080000332026-07-23. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Cluster Message “To Operate Tailgate Shift to Park” Vehicle is In Park
1130692026-07-08. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH – HEADLAMP
1130702026-07-08. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. SWITCH – HEADLAMP
S1623000028 Rev. K2026-06-18. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S1623000028 REV.I2026-06-03. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
08-208-26 REV. A2026-05-20. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.
08-208-262026-05-20. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
08-208-262026-05-13. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle
S2523000003 REV.A2026-04-29. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Door Latch, Handle And Ajar Additional Service Information.
91007992026-04-22. Service bulletin. ELECTRICAL SYSTEM. WARNING: Shorting the 48V output stud to the 12V output stud can cause immediate and irreversible damage to the power pack unit. Always use insulated tools and protective stud covers when performing service operations. NOTE: A loose or high resistance ground connection may result in abnormal voltage behavior and can increase the risk of electrical component damage. Always verify ground integrity before system power up. For P0AFA repair: Please follow the Service library steps 1 through 7 without fail. Only replace PPU or MGU after verifying the final step of the procedure.
23-007-262026-03-18. Service bulletin. ELECTRICAL SYSTEM. Instrument Panel Delamination Customers may comment on the following: SYMPTOM: ● Wrinkles or bubbles in the instrument panel cover Fig. 1. This bulletin replacing the instrument panel cover. NOTE: Only vehicles still under the basic warranty are covered in this TSB.
S26080000102026-03-13. Service bulletin. ELECTRICAL SYSTEM. Active Diagnostic Trouble Code (DTC) B1A10-00, B1A11-00, B1A12- 00, B1A13-00-, B1A14-00, B1A15-00, B1A16-00, and B1A17-00 in The Radio Frequency Hub (RFH)
S1408000384 REV.J2026-03-13. Service bulletin. ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
1106032026-03-13. Service bulletin. ELECTRICAL SYSTEM. SPEAKER - NONE
1106042026-03-13. Service bulletin. ELECTRICAL SYSTEM. SPEAKER - NONE
S1408000384 REV.I2026-02-19. Service bulletin. ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
S26230000062026-02-19. Service bulletin. ELECTRICAL SYSTEM. Washer Fluid Warning Lamp Illuminated When Reservoir Is Full
91007352025-12-17. Service bulletin. ELECTRICAL SYSTEM. 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
S2323000020 REV.B2025-10-02. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Power Side Steps Reverse, Stop In Motion, And/Or Do Not Deploy Or Stow
96C Combo2025-09-24. Service campaign. ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS. Customer Satisfaction Notification 96C – Park Assis Module - Dealer Notification
08-242-252025-08-13. Service bulletin. ELECTRICAL SYSTEM. Flash: Park Assist Module (PAM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B128E-25 - PTS Sensor 1-Signal Shape/Waveform Failure. ● B128F-25 - PTS Sensor 2-Signal Shape/Waveform Failure. ● B1290-25 - PTS Sensor 3-Signal Shape/Waveform Failure. ● B1291-25 - PTS Sensor 4-Signal Shape/Waveform Failure. ● B1292-25 - PTS Sensor 5-Signal Shape/Waveform Failure. ● B1293-25 - PTS Sensor 6-Signal Shape/Waveform Failure. ● B1295-25 - PTS Sensor 8-Signal Shape/Waveform Failure. ● B1296-25 - PTS Sensor 9-Signal Shape/Waveform Failure. ● B1297-25 - PTS Sensor 10-Signal Shape/Waveform Failure. ● B1298-25 - PTS Sensor 11-Signal Shape/Waveform Failure. ● B1299-25 - PTS Sensor 12-Signal Shape/Waveform Failure. **Customers must experience one or more of the following:** ● **Park Assist is inoperative.** ● False braking alerts while backing up when there’s nothing behind the vehicle. ● When backing up, the park assist feature will apply the brakes when no object is behind the vehicle. This bulletin involves updating the PAM module with the latest available software.
1062412025-08-06. Service bulletin. ELECTRICAL SYSTEM. LAMP - DOME
S258A0000172025-08-06. Service bulletin. ELECTRICAL SYSTEM. Door speaker Inoperative or No Sound

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