# Service bulletin PIT\-3665\-A

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: 10028790
- Published by NHTSA: 2009\-05\-30
- Manufacturer's number: PIT\-3665\-A
- Manufacturer's date: 2010\-11\-01
- Replaces: PIT\-3665B
- NHTSA component: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

## NHTSA's summary

GENERAL MOTORS: ON ALL 1988\-2009 FULL SIZE CHEVROLET/GMC PICKUPS, UTILITIES AND VANS, THE BRAKE PEDAL WILL MOVE DOWN OR SELF APPLY DURING FULL LOCK TURNS OR NEAR FULL LOCK TURNS. CHEVROLET ASTRO AND GMC SAFARI VANS; HUMMER 2 ARE INCLUDED. \*PE UPDATED 5/24/11. \*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

## Vehicles listed

- 1992 CHEVROLET ASTR0
- 1988 to 2005 CHEVROLET ASTRO
- 1988 to 2005 GMC SAFARI
- 1994 to 2005 GMC SAFARI \(GMC\)
- 2003 to 2007 HUMMER H2

## Recalls for the same vehicles and component

- [2005033](/recalls/tc/2005033.md), 2005-02-15: Brakes
- [05V043000](/recalls/nhtsa/05V043000.md), 2005-02-08: SERVICE BRAKES, HYDRAULIC
- [04V045000](/recalls/nhtsa/04V045000.md), 2004-02-04: SERVICE BRAKES, HYDRAULIC
- [2004037](/recalls/tc/2004037.md), 2004-01-29: Brakes
- [1993120](/recalls/tc/1993120.md), 1993-08-20: Brakes
- [93V119000](/recalls/nhtsa/93V119000.md), 1993-08-02: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
- [1991175](/recalls/tc/1991175.md), 1991-12-23: 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.
- [15\-00\-89\-004E](/bulletins/10222777.md), 2022-10-11, Service bulletin: POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING; SERVICE BRAKES, HYDRAULIC; STEERING. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- [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.
- [00\-05\-22\-002N](/bulletins/10139080.md), 2018-06-04, Service bulletin: EQUIPMENT; SERVICE BRAKES. This informational bulletin provides information for Disc Brake Warranty Service and Procedures.
- [01\-00\-89\-010J](/bulletins/10138197.md), 2018-05-21, Service bulletin: ENGINE; SERVICE BRAKES; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides a revision for 01\-00\-89\-010I to add the 2013 model year.

JSON: [/v1/bulletins/10028790](/v1/bulletins/10028790)

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