# Service bulletin SB\-090522001A

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: 10029965
- Published by NHTSA: 2009\-07\-21
- Manufacturer's number: SB\-090522001A
- Manufacturer's date: 2009\-02\-01
- NHTSA component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

## NHTSA's summary

CHEVROLET: HARD BRAKE PEDAL, EXTRA EFFORT NEEDED TO DEPRESS BRAKE PEDAL ON COLD START UP \(ADD AUXILIARY VACUUM PUMP\). \*PE

## 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, Anti\-lock brakes

## Vehicles listed

- 2008 to 2009 CHEVROLET HHR

## Other bulletins for the same vehicles and component

- [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.
- [SB\-09\-05\-25\-003](/bulletins/10032458.md), 2010-03-26, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE; SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER. SATURN/GMC/ PONTIAC/ CHEVROLET: BRAKE PEDAL SPONGY, INCREASED PEDAL TRAVEL, INCREASED EFFORT TO STOP \(INSPECT FOR LEAKS, REPLACE BRAKE PRESSURE MODULATOR VALVE \(BPMV\), AND BLEED BRAKE SYSTEM\). MAY BE CAUSED BY AIR ACCUMULATING IN THE MASTER CYLINDER OR BY A MISSING FILTER IN THE BRAKE PRESSURE MODULATOR VALVE \(BPMV\). \*PE

JSON: [/v1/bulletins/10029965](/v1/bulletins/10029965)

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