# Service bulletin CALABSMODVALVE

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: 10174987
- Published by NHTSA: 2020\-05\-14
- Manufacturer's number: CALABSMODVALVE
- Manufacturer's date: 2020\-05\-13
- NHTSA component: SERVICE BRAKES, AIR; SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

Customer Advisory Letter for ABS Modulator Valve Replacement. DTNA has decided to remove and replace the ABS modulator valves as part of an ongoing supplier quality study.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174987-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10174987-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- 2017 to 2021 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [2026428](/recalls/tc/2026428.md), 2026-09-09: Brakes
- [26V583000](/recalls/nhtsa/26V583000.md), 2026-09-09: ELECTRONIC STABILITY CONTROL \(ESC\); SERVICE BRAKES, AIR:ANTILOCK
- [2023051](/recalls/tc/2023051.md), 2023-02-10: Brakes
- [23V073000](/recalls/nhtsa/23V073000.md), 2023-02-10: ELECTRONIC STABILITY CONTROL \(ESC\); SERVICE BRAKES, AIR:ANTILOCK:MODULATOR
- [2022626](/recalls/tc/2022626.md), 2022-11-01: Brakes
- [22V817000](/recalls/nhtsa/22V817000.md), 2022-11-01: SERVICE BRAKES, AIR:ANTILOCK:MODULATOR; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
- [2021013](/recalls/tc/2021013.md), 2021-01-20: Brakes
- [21V018000](/recalls/nhtsa/21V018000.md), 2021-01-20: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
- [2020444](/recalls/tc/2020444.md), 2020-09-18: Brakes
- [2020305](/recalls/tc/2020305.md), 2020-07-02: Brakes

## Other bulletins for the same vehicles and component

- [CXA 03\_26\_ABS LA Fault](/bulletins/11030500.md), 2026-04-02, Other: SERVICE BRAKES. CX Advocate for 1810/02 ABS longitudinal acceleration fault \(TSB\-54\-104\-WST,TSB\-54\-379\-FTL\)
- [FleetCom\_ESC Warning Lamp](/bulletins/11029519.md), 2026-03-04, Other: SERVICE BRAKES. Fleet Communications for TSB\-54\-379\-FTL \& TSB\-54\-104\-WST ESC warning lamp and ECU replacement
- [TSB\-54\-379\-FTL](/bulletins/11028071.md), 2026-02-03, Service bulletin: SERVICE BRAKES. Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- [TSB\-54\-379\-FTL](/bulletins/11028064.md), 2026-02-03, Service bulletin: SERVICE BRAKES. Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- [FleetCom\_ABS Wheel Spd](/bulletins/11027487.md), 2026-01-08, Other: SERVICE BRAKES. Fleet Communications for ABS Wheel Speed Sensor Faults
- [CXA 10\_25\_Air Dryer Purge](/bulletins/11025094.md), 2025-11-06, Other: SERVICE BRAKES. CX Advocate for Experiencing Excessive Purging from Air Dryer
- [MYCOM\_09122025\-1](/bulletins/11023665.md), 2025-10-03, Other: SERVICE BRAKES. My Communications for Parts Alert ABS Harness
- [CALFTL42\-007](/bulletins/10225490.md), 2022-11-02, Service bulletin: SERVICE BRAKES, AIR. Customer Advisory Letter for Brake System Modulator Valve Evaluation.
- [SF622REV](/bulletins/10208395.md), 2022-03-03, Service bulletin: SERVICE BRAKES, HYDRAULIC. Revised Field Service Campaign for Cascadia, 49X ABS MBSP\+ Controller Software Update
- [ICI22\-015](/bulletins/10208394.md), 2022-03-03, Service bulletin: SERVICE BRAKES, HYDRAULIC. Important Campaign Information letter for SF622 – Addition of 8x4 Vehicles to Populationx

JSON: [/v1/bulletins/10174987](/v1/bulletins/10174987)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20CALABSMODVALVE&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10174987&vehicle=Service%20bulletin%20CALABSMODVALVE)