WenmarOpen by Wenmar Pro

Service bulletin PIE-0178

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10039590
Published by NHTSA2011-08-03
Manufacturer's numberPIE-0178
Manufacturer's date2011-08-01
ReplacesPIE-0178A
NHTSA componentSTEERING:GEAR BOX (OTHER THAN RACK AND PINION); STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID

NHTSA's summary

GM: 2011 BUICK REGAL/LACROSSE. POWER STEERING FLUID IS LEAKING FROM THE VEHICLE. NO ROOT CAUSE DETERMINED. *RM UPDATED 10/3/11. *PE

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, Steering gear

Vehicles listed
BUICK LACROSSE2011
BUICK REGAL2011

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PIT5076C2023-12-26. Service bulletin. Learning Issues When Repairing Service Stability/Traction Message.
13-02-32-001B2018-05-29. Service bulletin. 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.
13-02-32-001C2018-05-29. Service bulletin. 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.
12-02-32-002A2018-04-23. Service bulletin. 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.
13-02-32-001A2018-04-23. Service bulletin. This technical bulletin provides a revision for 13-02-32-001 to update the models information.
PIT5076C2017-08-15. Service bulletin. This Preliminary Information communication advises the technician to insure that global diagnostic service 2 diagnostic packages are up to date prior to learning the steering angle sensor for a diagnostic trouble code C710 symptom code 71 set in the electronic brake control module or the power steering control module. When rechecking for diagnostic trouble codes a U0074 U0077, U0180D, U01293, U0126, U0125, C0186, C0196, or C0287 are set and will not clear diagnose the Chassis bus. If no fault is found in the chassis bus check for an multiple diagnostic interface to data link connector issue. Technician is to try a different multiple diagnostic interface cable and attempt the steering angle sensor learn again following service information instruction then try to clear the codes again.
PIT5063D2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician with a diagnostic tip service steering message or service stability message. Technician may find a Diagnostic Trouble Code C056E Sym 42 and a Diagnostic Trouble Code C0569 Sym 3A setting after a new steering gear assembly was installed. If Diagnostic Trouble Code C0710 Sym 71 is set it must be addressed firth before performing a steering gear "set-up" in Service Programming System. Steering Angle Sensor module Diagnostic Trouble Code C056D Sym 00 and it must be address first. Technician should be advised that Diagnostic Trouble Codes DTC C056E Sym 42 or C0569 Sym 3A will set when a steering gear assembly was replaced without Service Programming System programming.
PIC5598J2017-08-15. Service bulletin. This Preliminary Information communication advises the technician that the part restriction on the electric power steering module for NJ1 part numbers has ended. Dealer can order parts directly through your parts department.
13-02-32-001D2017-08-15. Service bulletin. This technical bulletin provides a procedure to flush and bleed the power steering system to correct a condition of power steering noise or fluid leak from power steering pump, gear or high pressure hose during extreme low temperature conditions.
SB-16-NA-1092016-08-06. Service bulletin. "THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE STEERING GEAR FOR A NORMAL CONDITION OF GREASE OR SEALANT ON EXTERIOR CASE OF GEAR DUE TO THE MANUFACTURING PROCESS."