File in Section:
Bulletin No.:

Service Bulletin

Date:

02 - Steering
13-02-32-001A
June, 2013

TECHNICAL
Subject:

Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure
Hose During Extreme Low Temperature Conditions

Models:

2009-2013 Buick LaCrosse
2010-2013 Buick Regal
2012-2013 Buick Enclave
2013 Buick Encore Equipped with RPO N40 Hydraulic Power Steering
2007-2013 Cadillac Escalade
2009-2013 Cadillac SRX
2013 Cadillac XTS
2007-2013 Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe
2010-2013 Chevrolet Captiva, Captiva Sport (V6 Only), Equinox (V6 Only)
2011-2013 Chevrolet Silverado 2500/3500
2012-2013 Chevrolet Traverse
2013 Chevrolet Caprice PPV
2013 Chevrolet Trax Equipped with RPO N40 Hydraulic Power Steering
2007-2013 GMC Sierra 1500, Yukon Models 1500 Series Only
2010-2013 GMC Terrain (V6 Only)
2011-2013 GMC Sierra 2500/3500
2012-2013 GMC Acadia

This bulletin is being revised to update the models information. Please discard Corporate
Bulletin Number 13-02-32-001.

Condition

Cause

Important: The information contained in this bulletin
applies only to the models listed. DEXRON HP cannot
be used in any other products power steering system.
Ensure the vehicle being serviced is listed in the
Models information above.
Some customers may comment that their vehicle is
experiencing a power steering noise/whine or fluid leak
from the power steering pump, gear or high pressure
side power steering hose during extreme low outdoor
temperature operation that the cold weather fluid
recommended in the latest version of Bulletin
Number 12-02-32-002 may not resolve.

During extremely low temperatures, -35°C (-31°F) or
lower (usually in the -40°C/F or less range), the power
steering fluid may thicken and the power steering
system pressures may rise, causing damage to various
components.

Copyright 2013 General Motors LLC. All Rights Reserved.

Instructions
To resolve this condition, replace any damaged power
steering system components. Refer to Power Steering
in SI for diagnosing and repairing steering system
component fluid leaks.
Flush the power steering system and refill with
DEXRON HP power steering fluid.
Provide the customer DEXRON HP fluid Part Number
information for their records for any future maintenance
needs.

Page 2

June, 2013

Bulletin No.: 13-02-32-001A

Parts Information

Warranty Information

DEXRON HP ATF, or ATF (212-B) fluid (P/N or
spec# 9986333, spec # GMW16444 ) is serviced
with bottles:

Note: For vehicles that require power steering
component replacement, use the appropriate labor
operation for the replaced component. Use the unique
labor operation only when servicing the fluid to correct
a noise concern.

Part Number

Description

19300536

32 oz. with English language label

19300537
(Canada)

1 Liter with English/French language
label

For vehicles repaired under warranty, use:
Labor
Operation

Description

Labor
Time

7480008*

Flush and Bleed Power Steering
System to Correct Noise
Concern

0.9 hr

*This is a unique labor operation for bulletin use only. It will
not be published in the Labor Time Guide.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.

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