# Service bulletin 030525001

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: 10000930
- Published by NHTSA: 2003\-04\-04
- Manufacturer's number: 030525001
- Manufacturer's date: 2003\-01\-01
- NHTSA component: SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

THUMPING NOISE / FEEL IN BRAKE PEDAL. 1500/2500 SERIES HEAVY DUTY CARGO VANS. \*TT

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Brakes

## Vehicles listed

- 2003 CHEVROLET EXPRESS
- 2003 GMC SAVANA

## Recalls for the same vehicles and component

- [04V045000](/recalls/nhtsa/04V045000.md), 2004-02-04: SERVICE BRAKES, HYDRAULIC
- [2004037](/recalls/tc/2004037.md), 2004-01-29: Brakes

## Other bulletins for the same vehicles and component

- [23\-NA\-144](/bulletins/10242252.md), 2023-09-15, Service bulletin: SERVICE BRAKES. This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
- [PIT3665L](/bulletins/10226382.md), 2022-11-21, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIP4723F](/bulletins/10208027.md), 2022-02-14, Service bulletin: SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
- [PIT3665J](/bulletins/10178353.md), 2020-08-10, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT3271J](/bulletins/10168960.md), 2019-12-09, Service bulletin: WHEELS; SERVICE BRAKES, AIR:ANTILOCK. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
- [PIT3665H](/bulletins/10162149.md), 2019-07-08, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT3665G](/bulletins/10161004.md), 2019-06-10, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT3665F](/bulletins/10129088.md), 2018-02-21, Service bulletin: SERVICE BRAKES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT3665E](/bulletins/10113364.md), 2017-08-15, Service bulletin: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES. This Preliminary Information communication advises the technician that the Hydro\-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
- [PIT5178](/bulletins/10112585.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES, AIR:ANTILOCK. This Preliminary Information communication provides information to the technician that some vehicles may have an Antilock Braking System/ Traction Control System Malfunction Indicator Lamp are on or other various electrical issues. Technician should inspect the braided ground strap from the engine to the frame.

JSON: [/v1/bulletins/10000930](/v1/bulletins/10000930)

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