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Service bulletin S2123000009RevA

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10220552
Published by NHTSA2022-09-26
Manufacturer's numberS2123000009RevA
Manufacturer's date2021-02-15
NHTSA componentEXTERIOR LIGHTING; AIR BAGS

NHTSA's summary

Water is leaking into cab through the third brake light CHMSL

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Air bags, Lighting

Vehicles listed
RAM 15002019, 2020, 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20256582025-12-01. Airbag
25V8240002025-12-01. AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
20256132025-11-06. Airbag
25V7650002025-11-06. STEERING:STEERING CONTROL MODULE; AIR BAGS:FRONTAL
25V2980002025-05-08. AIR BAGS; ELECTRICAL SYSTEM:WIRING
20250132025-01-16. Airbag
25V0100002025-01-16. AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
20217222021-11-24. Airbag
21V9250002021-11-24. AIR BAGS:SIDE/WINDOW:CURTAIN
20215112021-08-12. Airbag

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
S26230000572026-10-16. Service bulletin. After Recent Service, A Replacement Occupant Classification Module (OCM) Is Non-Responsive.
S26230000572026-10-16. Service bulletin. After Recent Service, A Replacement Occupant Classification Module (OCM) Is Non-Responsive.
08032242024-03-18. Service bulletin. Battery Pack Control Module (BPCM) Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ? P0AC0 - Hybrid Battery Pack Current Sensor 1 Circuit Performance. ? P1A29 - Cell Supervisory Circuit A Failure. ? P0DE7 - Hybrid/EV Battery Pack Cell Voltage High. ? P0ABA - Voltage Sense A Circuit. ? P0B3D - Hybrid Battery Voltage Sense "A" Circuit Low. ? P0B3E - Hybrid Battery Voltage Sense "A" Circuit High. ? U3017 - Control Module Timer/Clock Performance. ? P0E55 - DC/DC Converter Current Sensor Circuit "A". ? P0DAF - Hybrid/EV Battery Cell Balancing Circuit "A". ? P0AD4 - Hybrid Battery Pack Air Flow System Insufficient Air Flow. This bulletin involves updating the BPCM with the latest available software.
23004242024-03-18. Service bulletin. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses.
23029232024-01-02. Service bulletin. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses (Fig. 1) . This bulletin is to communicate the procedure for head lamp condensation clearing.
18016232024-01-02. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs:P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. Other software enhancement included with this update: Idle stability improvements during Electronic Stability Control (ESC) events.
S20250000012024-01-02. Service bulletin. Malfunction Indicator Lamp Illumination (MIL). Diagnostic Trouble Code (DTC) P203E ? Reductant Level Sensor 1 Circuit Intermittent-Erratic Set.
934462023-10-30. Service bulletin. FCA Caribbean Warranty Bulletin ID-23-21 (XL1) Backlite Select 2019 - 2021 RAM 1500 Pickup (DT)
917452023-08-21. Service bulletin. FCA Caribbean Warranty Bulletin ID-23-13 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT)
917422023-08-21. Service bulletin. Warranty Bulletin D-23-11 (XG1) Center High Mounted Stop Lamp (CHMSL) - Select 2019 - 2021 RAM 1500 Pickup (DT)