# Service bulletin 100421

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.

- Type: Service bulletin
- NHTSA id: 11008249
- Published by NHTSA: 2024\-10\-02
- Manufacturer's number: 100421
- Manufacturer's date: 2024\-09\-09
- NHTSA component: SERVICE BRAKES
- Manufacturer's system: Anti\-Lock Brake System

## NHTSA's summary

MODULE \- ANTI\-LOCK BRAKE SYSTEM

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11008249-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11008249-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2019 to 2024 RAM 1500

## Recalls for the same vehicles and component

- [2024503](/recalls/tc/2024503.md), 2024-09-05: Brakes
- [24V653000](/recalls/nhtsa/24V653000.md), 2024-09-05: ELECTRONIC STABILITY CONTROL \(ESC\):CONTROL MODULE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
- [2021156](/recalls/tc/2021156.md), 2021-03-16: Brakes
- [21V037000](/recalls/nhtsa/21V037000.md), 2021-02-01: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
- [2019050](/recalls/tc/2019050.md), 2019-02-06: Brakes
- [19V067000](/recalls/nhtsa/19V067000.md), 2019-02-05: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

## Other bulletins for the same vehicles and component

- [08\-269\-26](/bulletins/11035044.md), 2026-07-18, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. R1L/R1H Trailer Brake Setting In Radio Cannot Be Changed Customers may experience the following: SYMPTOM: ● Trailer brake setting in radio cannot be changed.
- [113123](/bulletins/11034908.md), 2026-07-08, Service bulletin: SERVICE BRAKES. SPRING KIT \- DISC BRAKE PAD
- [110463](/bulletins/11029761.md), 2026-03-05, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. SWITCH \- TRAILER BRAKE CONTROL MODULE , ADAPTER \& WIRING KIT \- TRAILER TOW.
- [110082](/bulletins/11028785.md), 2026-02-12, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. MODULE \- TRAILER BRAKE \& TOWING CONTROL
- [S2505000003](/bulletins/11026634.md), 2025-12-17, Service bulletin: SERVICE BRAKES. Diagnostic Trouble Code \(DTC\) C0050\-00\-Brake System Hydraulic Leak Set After Recent Repair.
- [S2523000091](/bulletins/11026632.md), 2025-12-17, Service bulletin: SERVICE BRAKES. Antilock Brake \(ABS\) Light On. Intermittent Or Implausible Wheel Speed Sensor Signal Diagnostic Trouble Codes \(DTCs\)
- [S1805000006 REV.B](/bulletins/11025508.md), 2025-11-13, Service bulletin: SERVICE BRAKES. ESC Light Illuminated. DTC C1252\-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE
- [102950](/bulletins/11013631.md), 2025-02-04, Service bulletin: SERVICE BRAKES. MODULE \- ANTI\-LOCK BRAKE SYSTEM
- [102948](/bulletins/11013630.md), 2025-02-04, Service bulletin: SERVICE BRAKES. MODULE \- ANTI\-LOCK BRAKE SYSTEM
- [S2523000007](/bulletins/11013254.md), 2025-01-30, Service bulletin: SERVICE BRAKES; UNKNOWN OR OTHER. Trailer Brake Information Displays In Cluster With No Trailer Connected.

JSON: [/v1/bulletins/11008249](/v1/bulletins/11008249)

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