# Service bulletin 4550

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: 10022424
- Published by NHTSA: 2007\-08\-13
- Manufacturer's number: 4550
- NHTSA component: STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID

## NHTSA's summary

POWER STEERING FLUID LEAK FROM INLET HOSE TO RESERVOIR. \*KB

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Steering, Power steering

## Vehicles listed

- 2007 SATURN AURA

## Other bulletins for the same vehicles and component

- [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.
- [15356](/bulletins/10089834.md), 2017-01-30, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM. 15356 \- SPECIAL COVERAGE. ON SOME 2007\-2012 MODEL YEAR CHEVROLET MALIBU, PONTIAC G6, AND SATURN AURA VEHICLES EQUIPPED WITH ELECTRIC POWER STEERING ASSIST \(EPS\), THE STEERING COLUMN TORQUE SENSOR OR THE EPS MOTOR/CONTROLLER MAY CAUSE THE VEHICLE TO SUDDENLY LOSE EPS. IF THE VEHICLE LOSES EPS, THE VEHICLE’S DRIVER INFORMATION CENTER WILL DISPLAY A WARNING MESSAGE AND A WARNING CHIME WILL BE HEARD. THE VEHICLE WILL REVERT TO A MANUAL STEERING MODE, WHICH REQUIRES GREATER DRIVER EFFORT TO OPERATE AT LOW VEHICLE SPEEDS. DEALERS ARE TO REPLACE THE STEERING COLUMN TORQUE SENSOR OR EPS MOTOR/CONTROLLER BASED ON DTC. THE REPAIRS WILL BE MADE AT NO CHARGE TO THE CUSTOMER.
- [SB\-15356](/bulletins/10058788.md), 2015-11-24, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM. PONTIAC/SATURN/CHEVROLET: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. SOME VEHICLES WILL SUDDENLY LOSE ELECTRIC POWER STEERING ASSIST \(EPS\) DUE TO STEERING COLUMN TORQUE SENSOR OR EPS MOTOR/CONTROLLER AND DRIVER INFORMATION CENTER WILL HAVE WARNING MESSAGE ALONG WITH WARNING CHIME SOUND. MODEL 2007\-12 MALIBU, AURA, G6. \*PE
- [SB\-07\-02\-32\-002N](/bulletins/10053864.md), 2013-11-29, Service bulletin: STEERING:HYDRAULIC POWER ASSIST SYSTEM; STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. BUICK/CADILLAC/CHEVROLET/GMC/PONTIAC/ SATURN: THERE IS FLUID LEAKING FROM POWER STEERING SYSTEM, ALONG A FLUID LEAK IN FRONT OF VEHICLE UNDERNEATH AND SHOULD BE INSPECTED, CLEANED AND IDENTIFIED BEFORE REPAIRING OR REPLACING. MODEL 2010\-14 LACROSSE, 2011\-14 REGAL, 2007\-14 ESCALADE, SUBURBAN, TAHOE, YUKON, YUKON XL, YUKON DENALI, YUKON DENALI XL, 2013\-14 XTS, 2005\-14 MALIBU, 2007\-13 AVALANCHE, SILVERADO, SIERRA, 2006\-10 G6, 2007\-09 AURA. \*PE
- [06147](/bulletins/10020665.md), 2006-12-08, Service bulletin: STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID. PRODUCT ENHANCEMENT FOR INVENTORY VEHICLES ONLY \- POWER STEERING HOSE CONTACT. \*KB
- [060232002](/bulletins/10019478.md), 2006-03-16, Service bulletin: STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING. NORMAL OPERATING CHARACTERISTICS OF ELECTRIC POWER STEERING \(EPS\) SYSTEM DURING EXTENDED LOCK\-TO\-LOCK \(MAXIMUM STEERING WHEEL ROTATION\) USAGE. \*TT UPDATED 3/30/11. \*PE

JSON: [/v1/bulletins/10022424](/v1/bulletins/10022424)

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