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GM Power Steering Noise

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

GM has issued a service bulletin ##13-02-32-001B to address a problem with GM Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions. The bulletin applies to the models listed below:

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 Tracker, 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
2009-2012 Opel Insignia

The issue covered by the bulletin involves 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.

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

To resolve the problem, GM recommends replacing the damaged components and flushing the entire power steering system with DEXRON HP ATF fluid.

GM cautions that the DEXRON HP ATF flud must be used in these vehicles thereafter and may NOT be used in any vehicle not listed above.

DEXRON HP ATP Part Number 19300536 32 oz.

 

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