File in Section:
Bulletin No.:

Service Bulletin

Date:

02 - Steering
13-02-32-001D
January, 2016

TECHNICAL
Subject:

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

Models:

2009-2015 Buick LaCrosse (Equipped with Hydraulic Power Steering)
2010-2013 Buick Regal
2012-2016 Buick Enclave
2013-2016 Buick Encore Equipped with RPO N40 Hydraulic Power Steering
2007-2014 Cadillac Escalade
2009-2016 Cadillac SRX
2013-2016 Cadillac XTS
2007-2014 Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe (Equipped with
Hydraulic Power Steering)
2010-2015 Chevrolet Captiva, Captiva Sport (V6 Only)
2010-2015 Chevrolet Equinox (V6 Only)
2011-2016 Chevrolet Silverado 2500/3500
2012-2016 Chevrolet Traverse
2013 Chevrolet Caprice PPV
2013-2015 Chevrolet Tracker, Trax Equipped with RPO N40 Hydraulic Power Steering
2007-2014 GMC Sierra 1500, Yukon Models 1500 Series Only (Equipped with Hydraulic
Power Steering)
2010-2016 GMC Terrain (V6 Only)
2011-2016 GMC Sierra 2500/3500
2012-2016 GMC Acadia
2009-2016 Opel Insignia (Equipped with Hydraulic Power Steering)

Attention: This Bulletin also applies to any of the above models that may be Export vehicles.
This Bulletin has been revised to update the Models information and change the power
steering fluid. Please discard Corporate Bulletin Number 13-02-32-001C.

Condition

Cause

Important: The information contained in this bulletin
applies only to the models listed. Pentosin CHF202
fluid 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 their vehicle is
experiencing a power steering noise/whine or fluid leak
from the power steering pump, gear or high pressure
power steering hose during extreme low outdoor
temperature operation. This bulletin replaces Bulletin
Number 12-02-32-002 as Pentosin CHF202 fluid has
improved cold temperature characteristics over the
former cold temperature fluid.

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 2016 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.

Page 2

January, 2016

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

Flush the power steering system and refill with
Pentosin CHF202 fluid. Refer to Power Steering
System Flushing in SI for proper procedure and
expected fluid quantity to be used.
Provide the customer with this information for their
records and future maintenance needs.

Warranty Information

Parts Information

For vehicles repaired under warranty, use:

Pentosin CHF202 fluid can be obtained through a local
automotive parts retailer.

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.

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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