This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable...
Chevrolet technical service bulletin PIT3665M for 1998-2014, 2017-2019, 2021, 2023 Chevrolet Silverado 1500, 2001-2004 Chevrolet Tahoe and 2022 Chevrolet Equinox and others.
- Bulletin number
- PIT3665M
- Component
- Electrical system: integrated trailer brake control
- 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.
Owners of these vehicles have filed 4,417 complaints in the electrical category.
Vehicles covered
- Chevrolet Silverado 1500 1998-2014, 2017-2019, 2021, 2023 20122013201420172018201920212023
- Chevrolet Tahoe 2001-2004 2001200220032004
- Chevrolet Equinox 2022 2022
- GMC Sierra 1500 1998, 2006-2010, 2012-2014, 2017-2019, 2021-2023 20132014201720182019202120222023
- Chevrolet Suburban 2001-2004, 2016-2019 20012002200320042016201720182019
- GMC Yukon 2001-2004 2001200220032004
- Chevrolet Silverado 2500 2015-2016, 2020, 2022 2015201620202022
- Chevrolet Astro 1998-2005 19981999200020012002200320042005
- GMC Sierra 2500 2000, 2003-2005, 2015-2016, 2020 2000200320042005201520162020
- Cadillac Escalade 2001-2004 2001200220032004
- GMC Safari 1998-2005 19981999200020012002200320042005
- Chevrolet Avalanche 1500 2002-2004 200220032004
- Chevrolet Express 1998-2021 20142015201620172018201920202021
- GMC Sierra 3500 1999, 2001-2002, 2011, 2024 19992001200220112024
- GMC Savana 1998-2023 20162017201820192020202120222023
- Hummer H2 2003-2007 20032004200520062007
- Chevrolet Express 3500 2023 2023
- Chevrolet Silverado EV 2024 2024
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