# Service bulletin PI0639C

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.

- Type: Service bulletin
- NHTSA id: 10112287
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: PI0639C
- Manufacturer's date: 2016\-01\-25
- NHTSA component: STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM

## NHTSA's summary

This preliminary informational bulletin provides a procedure to apply dielectric grease and a piece of adhesive shim stock to the steering angle sensor connector to correct a condition of service stabilitak message displayed in DIC and DTC C0455 or C0710

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10112287-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10112287-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Steering, Power steering

## Trouble codes named

C0455, C0710

## Vehicles listed

- 2007 to 2014 CADILLAC ESCALADE
- 2007 to 2014 CADILLAC ESCALADE ESV
- 2007 to 2013 CADILLAC ESCALADE EXT
- 2007 to 2013 CHEVROLET AVALANCHE
- 2007 to 2012 CHEVROLET COLORADO
- 2008 to 2016 CHEVROLET EXPRESS
- 2007 to 2013 CHEVROLET SILVERADO
- 2014 CHEVROLET SILVERADO 1500
- 2014 CHEVROLET SILVERADO 2500
- 2007 to 2014 CHEVROLET SUBURBAN
- 2007 to 2014 CHEVROLET TAHOE
- 2007 to 2012 GMC CANYON
- 2008 to 2016 GMC SAVANA
- 2007 to 2013 GMC SIERRA
- 2014 GMC SIERRA 1500
- 2014 GMC SIERRA 2500
- 2007 to 2013 GMC SIERRA DENALI
- 2007 to 2014 GMC YUKON
- 2007 to 2013 GMC YUKON DENALI
- 2007 to 2013 GMC YUKON DENALI XL
- 2007 to 2011 GMC YUKON XL
- 2012 to 2014 GMC YUKON XL

## Recalls for the same vehicles and component

- [17V414000](/recalls/nhtsa/17V414000.md), 2017-06-29: STEERING:ELECTRIC POWER ASSIST SYSTEM

## Other bulletins for the same vehicles and component

- [120232002A](/bulletins/10245766.md), 2023-12-04, Service bulletin: POWER TRAIN; BACK OVER PREVENTION; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; STEERING; STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS; STEERING:HYDRAULIC POWER ASSIST:PUMP; SERVICE BRAKES. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Pressure Hose During Extreme Low Temperature Operation \(Replace Power Steering Fluid\)
- [120232001A](/bulletins/10245765.md), 2023-12-04, Service bulletin: FUEL SYSTEM, GASOLINE; STEERING; POWER TRAIN; STEERING:HYDRAULIC POWER ASSIST SYSTEM; POWER TRAIN:DRIVELINE:HYDRAULIC:HOSES AND FITTINGS. Hydraulic Power Steering Leak at Hose Connection to Steering Rack
- [05\-02\-32\-008F](/bulletins/10140434.md), 2018-06-11, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:PUMP. 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\-001B](/bulletins/10138679.md), 2018-05-29, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. 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\-001C](/bulletins/10138670.md), 2018-05-29, Service bulletin: STEERING; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. 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\-008F](/bulletins/10138589.md), 2018-05-29, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS; STEERING. 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.
- [16NA218](/bulletins/10137403.md), 2018-05-21, Service bulletin: POWER TRAIN; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; STEERING. Brake Hydrdroboost Leaking Power Steering Fluid, this may be due to overheating \(thermal set of the hydro boost seals\) from lack of/insufficient cooling by the loop cooler.
- [PIT5338](/bulletins/10135339.md), 2018-05-07, Service bulletin: ELECTRICAL SYSTEM; STEERING; STEERING:ELECTRIC POWER ASSIST SYSTEM. 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.
- [PI0534B](/bulletins/10134644.md), 2018-04-23, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:PUMP. This preliminary information bulletin provides a procedure to eliminate a whine noise that varies with engine speeds.
- [12\-02\-32\-002A](/bulletins/10134625.md), 2018-04-23, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID; STEERING. 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.

JSON: [/v1/bulletins/10112287](/v1/bulletins/10112287)

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