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Service bulletin 12-02-32-001

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 id10043850
Published by NHTSA2012-04-30
Manufacturer's number12-02-32-001
Manufacturer's date2013-02-01
ReplacesSB-12-02-32-001A
NHTSA componentSTEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

NHTSA's summary

GMC: HYDRAULIC POWER STEERING LEAK AT HOSE CONNECTION TO STEERING RACK. ALL POTENTIAL LEAKS SHOULD BE COMPLETELY CLEANED AND INDENTIFIED BEFORE ATTEMPTING TO REPAIR OR REPLACE ANY POWER STEERING COMPONENTS. *JS UPDATED 4/22/13. *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

Steering, Power steering

Vehicles listed
CADILLAC ESCALADE2007, 2008, 2009, 2010, 2011
CADILLAC ESCALADE ESV2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET SILVERADO2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET SUBURBAN2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET TAHOE2007, 2008, 2009, 2010, 2011, 2012
GMC SIERRA2007, 2008, 2009, 2010, 2011, 2012
GMC YUKON2007, 2008, 2009, 2010, 2011, 2012
GMC YUKON DENALI2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2007, 2008, 2009, 2010, 2011
GMC YUKON XL2012 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
120232002A2023-12-04. Service bulletin. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Pressure Hose During Extreme Low Temperature Operation (Replace Power Steering Fluid)
120232001A2023-12-04. Service bulletin. Hydraulic Power Steering Leak at Hose Connection to Steering Rack
05-02-32-008F2018-06-11. Service bulletin. This technical bulletin provides a procedure to replace the power steering pump and line to correct the customers concern of lack of steering assit when stopped or parking lot manuvers.
13-02-32-001B2018-05-29. Service bulletin. This technical bulletin provides a procedure to repair any power steering leak that may be caused from extremely low temperatures and use the recommended fluid.
13-02-32-001C2018-05-29. Service bulletin. This technical bulletin provides a procedure to repair any power steering leak that may be caused from extremely low temperatures and use the recommended fluid.
05-02-32-008F2018-05-29. Service bulletin. This technical bulletin provides a procedure to replace the power steering pump and line to correct the customers concern of lack of steering assit when stopped or parking lot manuvers.
PIT53382018-05-07. Service bulletin. This Preliminary Information communication provides information to the technician about vehicle that may have a Service Power Steering or Service Hybrid System message displayed on the Driver Information Center, Charging System indicator lamp on, Loss of power steering assist, and or Loss of 12 volt battery power. Technician will need to replace the Accessory DC Power Control Module.
PI0534B2018-04-23. Service bulletin. This preliminary information bulletin provides a procedure to eliminate a whine noise that varies with engine speeds.
12-02-32-002A2018-04-23. Service bulletin. This technical bulletin provides a revision for 12-02-32-002 to add the 2013-2014 model years, add noise as a possible condition and add a Note in the Instructions section.
13-02-32-001A2018-04-23. Service bulletin. This technical bulletin provides a revision for 13-02-32-001 to update the models information.