Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions – 2007-2020 Buick Cadillac Chevrolet GMC Opel

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Service Bulletin Bulletin No.: 13-02-32-001F
Date: July, 2019
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
2012-2017 Buick Enclave
2007-2014 Cadillac Escalade
2009-2016 Cadillac SRX
2013-2018 Cadillac XTS
2007-2014 Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe (Equipped with
Hydraulic Power Steering)
2010-2015 Chevrolet Captiva, Captiva Sport (V6 Only)
2010-2017 Chevrolet Equinox (V6 Only)
2011-2018 Chevrolet Tracker, Trax Equipped with RPO N40 Hydraulic Power Steering
2011-2020 Chevrolet Silverado 2500/3500
2012-2017 Chevrolet Traverse
2013 Chevrolet Caprice PPV
2007-2014 GMC Sierra 1500, Yukon Models 1500 Series Only (Equipped with Hydraulic
Power Steering)
2010-2017 GMC Terrain (V6 Only)
2011-2020 GMC Sierra 2500/3500
2012-2017 GMC Acadia
2009-2017 Opel Insignia (Equipped with Hydraulic Power Steering)
Attention: This Bulletin also applies to any of the above models that may be Export from North
America vehicles.
This Bulletin has been revised to add the 2019-2020 Model Years to the Silverado and Sierra
2500/3500. Please discard Corporate Bulletin Number 13-02-32-001E.
Condition
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.
Cause
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.
Page 2 July, 2019 Bulletin No.: 13-02-32-001F
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
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.
Parts Information
Pentosin CHF202 fluid can be obtained through a local
automotive parts retailer.
Warranty Information
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.
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
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.

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