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Service bulletin 040523005

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 id10012141
Published by NHTSA2005-02-15
Manufacturer's number040523005
Manufacturer's date2004-06-01
NHTSA componentSERVICE BRAKES, HYDRAULIC

NHTSA's summary

AVAILABILITY OF REAR WHEEL MUD FLAPS TO REDUCE DEBRIS BUILD-UP ON REAR BRAKE CALIPERS AND/OR REAR WHEELS. *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
CHEVROLET SILVERADO1999, 2000, 2001, 2002, 2003, 2004
GMC SIERRA1999, 2000, 2001, 2002, 2003, 2004

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

Recalls for the same vehicles and component
05V3790002005-08-29. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
20051162005-04-22. Brakes
05V1610002005-04-22. PARKING BRAKE
20050332005-02-15. Brakes
05V0430002005-02-08. SERVICE BRAKES, HYDRAULIC
20050102005-01-14. Brakes
20043952004-11-05. Brakes
04V0450002004-02-04. SERVICE BRAKES, HYDRAULIC
20040372004-01-29. Brakes
20011862001-07-03. Brakes

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
130522001B2023-12-11. Service bulletin. Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
130522001A2023-12-11. Service bulletin. Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
1305220012023-12-11. Service bulletin. Pre-Formed and Pre-Flared Hydraulic Brake Pipe Kits Now Available for Service
23-NA-1442023-09-15. Service bulletin. This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.
PIT3665L2022-11-21. Service bulletin. 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.
PIP4723F2022-02-14. Service bulletin. 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.
PIT3665J2020-08-10. Service bulletin. 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.
PIT3271J2019-12-09. Service bulletin. 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.
PIT3665H2019-07-08. Service bulletin. 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.
PIT3665G2019-06-10. Service bulletin. 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.