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Service bulletin TCH-003-056

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 id10172048
Published by NHTSA2020-03-05
Manufacturer's numberTCH-003-056
Manufacturer's date2020-02-14
NHTSA componentPARKING BRAKE

NHTSA's summary

BENDIX® PP-1® & PP-8 PARK CONTROL VALVE WEAR AND REPLACEMENT NOTICE. This bulletin applies to all Bendix® PP-1 and PP-8 valves in applications where the exhaust port is plumbed external to the cab. It is mostly applicable to vehicles used in high-park-brake-cycle count applications, like refuse vehicles or city buses.

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, Parking brake

Vehicles listed
BENDIX BENDIX

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