# Service bulletin PIT3665C

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: 10112546
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PIT3665C
- Manufacturer's date: 2012\-11\-06
- NHTSA component: SERVICE BRAKES; SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10112546-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10112546-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes

## Vehicles listed

- 2002 to 2004 CADILLAC ESCALADE
- 2003 to 2004 CADILLAC ESCALADE ESV
- 2002 to 2004 CADILLAC ESCALADE EXT
- 1998 to 2005 CHEVROLET ASTRO
- 2002 to 2004 CHEVROLET AVALANCHE
- 1998 to 2013 CHEVROLET EXPRESS
- 1998 CHEVROLET PICKUP
- 1999 to 2013 CHEVROLET SILVERADO
- 2001 to 2004 CHEVROLET SUBURBAN
- 2001 to 2004 CHEVROLET TAHOE
- 1999 to 2000 GMC G SERIES
- 2003 GMC G SERIES
- 2001 to 2002 GMC GM
- 1998 GMC P
- 1998 GMC PICKUP
- 1998 to 2005 GMC SAFARI
- 1998 to 2013 GMC SAVANA
- 1999 to 2013 GMC SIERRA
- 2007 to 2013 GMC SIERRA DENALI
- 2001 to 2004 GMC YUKON
- 2001 to 2004 GMC YUKON DENALI
- 2004 GMC YUKON DENALI XL
- 2001 to 2004 GMC YUKON XL
- 2003 to 2007 HUMMER H2

## Recalls for the same vehicles and component

- [24V702000](/recalls/nhtsa/24V702000.md), 2024-09-19: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC:HOSES, LINES/PIPING, AND FITTINGS
- [2015352](/recalls/tc/2015352.md), 2015-08-05: Brakes
- [2011188](/recalls/tc/2011188.md), 2011-05-06: Brakes
- [11V275000](/recalls/nhtsa/11V275000.md), 2011-05-06: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
- [2007260](/recalls/tc/2007260.md), 2007-08-09: Brakes
- [05V379000](/recalls/nhtsa/05V379000.md), 2005-08-29: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
- [2005116](/recalls/tc/2005116.md), 2005-04-22: Brakes
- [05V161000](/recalls/nhtsa/05V161000.md), 2005-04-22: PARKING BRAKE
- [2005033](/recalls/tc/2005033.md), 2005-02-15: Brakes
- [05V043000](/recalls/nhtsa/05V043000.md), 2005-02-08: SERVICE BRAKES, HYDRAULIC

## Other bulletins for the same vehicles and component

- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [21\-NA\-043](/bulletins/11011709.md), 2024-12-10, Service bulletin: STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.
- [PIP5596A](/bulletins/10253061.md), 2024-04-15, Service bulletin: SERVICE BRAKES; FUEL SYSTEM, GASOLINE. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
- [PIT5120A](/bulletins/10247720.md), 2023-12-26, Service bulletin: SERVICE BRAKES. Stabilitrak/Traction Control OFF With Red Brake Warning Lamp
- [PIT5005A](/bulletins/10247700.md), 2023-12-26, Service bulletin: EQUIPMENT; SERVICE BRAKES. Diagnostic Tip \- Service Trailer Brake Message And Unable To Clear DTCs
- [PIT4729E](/bulletins/10247669.md), 2023-12-26, Service bulletin: EQUIPMENT; SERVICE BRAKES. Adding Integrated Trailer Brake Controller RPO JL1.
- [PIT4648D](/bulletins/10247663.md), 2023-12-26, Service bulletin: SERVICE BRAKES, HYDRAULIC; ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). ABS Light and/or Service Stability Message On With DTC C0045 and/or C0050.
- [PIT5161B](/bulletins/10247072.md), 2023-12-11, Service bulletin: SERVICE BRAKES. Bump Feel Or Clunk Noise After A Stop.
- [PIT5122D](/bulletins/10247066.md), 2023-12-11, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL; SERVICE BRAKES. Stability Message Low Power Brake Light And Cruise Control Operation.
- [130522001B](/bulletins/10246647.md), 2023-12-11, Service bulletin: SERVICE BRAKES. Pre\-Formed and Pre\-Flared Hydraulic Brake Pipe Kits Now Available for Service

JSON: [/v1/bulletins/10112546](/v1/bulletins/10112546)

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