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Service bulletin S2123000055

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 id10230215
Published by NHTSA2023-01-17
Manufacturer's numberS2123000055
Manufacturer's date2021-07-28
NHTSA componentENGINE; SERVICE BRAKES

NHTSA's summary

HD Truck Brake Pedal Feel On Gas Engine Equipped

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

Brakes, Engine

Vehicles listed
RAM 25002019, 2020, 2021
RAM 35002019, 2020, 2021
RAM 45002019, 2020, 2021
RAM 55002019, 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
20226132022-10-25. Brakes
22V7590002022-10-11. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
20221082022-03-11. Brakes
22V1400002022-03-10. ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
20213602021-06-10. Engine
21V4390002021-06-10. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION
21V0230002021-01-26. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
21V0160002021-01-20. SERVICE BRAKES; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS; SUSPENSION:REAR
21V0080002021-01-13. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM:HOSES, LINES/PIPING, AND FITTINGS
20203962020-08-27. Engine

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
1142542026-09-03. Service bulletin. RADIATOR - ENGINE COOLING
1142552026-09-03. Service bulletin. RADIATOR - ENGINE COOLING
1137442026-08-06. Service bulletin. SENSOR - TURBOCHARGER SPEED
1137422026-08-06. Service bulletin. SENSOR - TURBOCHARGER SPEED
1129062026-07-02. Service bulletin. BEARING - CRANKSHAFT THRUST and KIT
1129062026-07-02. Service bulletin. BEARING - CRANKSHAFT THRUST and KIT
9100692 Rev 12026-05-28. Service bulletin. On Cummins diesel applications that are for 2019 and newer the bpro part 1BP00507AB can on occasions create a check engine light. In these situations, it is recommended to use the appropriate Mopar air filter originally installed on the vehicle. The "AC" level of the part is in development to resolve this issue. 1BP00507AB should still be usable for 2018 and older Model year Cummins engines.
1114782026-05-28. Service bulletin. RADIATOR - ENGINE COOLING
S2509000005 REV.B2026-04-22. Service bulletin. Light Random Tick Noise From The Engine.
S26140000022026-04-22. Service bulletin. Diagnostic Trouble Code (DTC) P2459-00 Particulate Filter Regeneration Too Frequent Setting in the Powertrain Control Module (PCM) or Under Fueling or Over Fueling Condition After Fuel Injector(s) Replacement