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Service bulletin G-208570

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 id10079360
Published by NHTSA2016-09-07
Manufacturer's numberG-208570
Manufacturer's date2015-01-13
NHTSA componentSTEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

NHTSA's summary

SERVICE UPDATE (REVISED PART INFORMATION). INSPECT VEHICLES AND REPLACE THE POWER STEERING COOLER ASSEMBLY AS NEEDED ON VEHICLES THAT WERE PREVIOUSLY SERVICED PRIOR TO SEPTEMBER 9, 2014 PURSUANT TO RECALL BULLETIN 14356 (SINCE SUPERSEDED BY BULLETIN 14356A). THESE VEHICLES MAY HAVE BEEN BUILT WITH A HOSE CONNECTION WITHIN THE POWER STEERING COOLER ASSEMBLY THAT IS MISSING THE FERRULE OR FERRULE CRIMP. IF THE VEHICLE IS DRIVEN WITHOUT THE FERRULE OR FERRULE CRIMP, THERE MAY BE A LOSS OF POWER STEERING FLUID.

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
CHEVROLET SILVERADO 15002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002015 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
18V5860002018-09-07. STEERING:ELECTRIC POWER ASSIST SYSTEM
14V7190002014-11-10. STEERING:ELECTRIC POWER ASSIST SYSTEM
14V3390002014-06-19. SERVICE BRAKES, HYDRAULIC:POWER ASSIST; STEERING:HYDRAULIC POWER ASSIST SYSTEM

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
14743B2023-12-18. Service bulletin. Loss of Electric Power Steering (EPS) Assist
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.
PIT5405C2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a reduced or loss of power steering assist, steering wheel jerks or kicks back when turning, Service Stabilitrak message with warning chime, engine stall, Instrument Panel Cluster going blank or inoperative, radio/Integrated Center Stack going blank, Heater-Vent-Air Conditioning going blank, hood ajar message and/or dome lamps flash when shifting into reverse, alarm sounds when locking doors or door locks cycling, and or wipers continue to run for a short time after turning off and then stop/park in the incorrect location. Technician may find Diagnostic Trouble Codes U0073, U0078, U0029, U0028, U0415, U0140, U0126, U0121, U0101, U0100, C0544, C0710, U1510, B127B, B2605, B3600, C0800, U0428, U0452, U0131, and P0513 set in the vehicle. Check the body control module ground at the G218 location. The front dash insulator mat may be trapped between the ground eyelet and the body stud. Remove the round nut and eyelet and cut the front dash insulator mat away from the ground stud so it no longer interferes with the ground stud and reinstall the eyelet and ground nut. Technician will also inspect the starter solenoid battery cable for shorting out on the starter heat shield. Technician will need to voltage drop the battery cables. The battery should be tested using the GR8. X183 or X133 should be inspected for any broken/loose/backed out terminals.
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.
G-2098982017-05-11. Service bulletin. 14608B - SERVICE UPDATE (REVISED SERVICE PROCEDURE). THE BULLETIN PROVIDES A FURTHER SERVICE PROCEDURE TO INSPECT VEHICLES AND REPLACE THE POWER STEERING COOLER ASSEMBLY AS NEEDED ON CERTAIN 2015 MODEL YEAR CHEVROLET SILVERADO 2500/3500 HD AND GMC SIERRA 2500/3500 HD VEHICLES THAT WERE PREVIOUSLY SERVICED PRIOR TO SEPTEMBER 9, 2014 PURSUANT TO RECALL BULLETIN 14356 (SINCE SUPERSEDED BY BULLETIN 14356A). THESE VEHICLES MAY HAVE BEEN BUILT WITH A HOSE CONNECTION WITHIN THE POWER STEERING COOLER ASSEMBLY THAT IS MISSING THE FERRULE OR FERRULE CRIMP. IF THE VEHICLE IS DRIVEN WITHOUT THE FERRULE OR FERRULE CRIMP, THERE MAY BE A LOSS OF POWER STEERING FLUID.
PI1354D2017-03-13. Service bulletin. THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION ON A PROCEDURE FOR DIAGNOSING AND REPAIRING VIBRATIONS CAUSED BY THE WHEEL AND TIRE, AXLE COMPONENTS AND/OR PROPELLER SHAFTS.
PIT5405B2016-10-21. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN FOR A REDUCED POWER MESSAGE, STEERING ASSIST, ENGINE STALL OR THE INSTRUMENT PANEL, RADIO, AND OR HEATER-VENT-AIR CONDITIONING GO BLANK WITH MULTIPLE DIAGNOSTIC TROUBLE CODES. IF ANY OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES U0073, U0078, U0029, U0028, U0415, U0140, U0126, U0121, U0101, U0100, C0544, U1510, U0073, B127B, B2605, B3600,C0800, U0428, AND U0452 SET IN THE VEHICLE. CHECK THE BODY CONTROL MODULE GROUND AT THE G218 LOCATION. THE FRONT DASH INSULATOR MAT MAY BE TRAPPED BETWEEN THE GROUND EYELET AND THE BODY STUD. REMOVE THE ROUND NUT AND EYELET AND CUT THE FRONT DASH INSULATOR MAT AWAY FROM THE GROUND STUD SO IT NO LONGER INTERFERES WITH THE GROUND STUD AND REINSTALL THE EYELET AND GROUND NUT. TECHNICIAN SHOULD ALSO INSPECT CONNECTOR X183 AND X133FOR ANY BROKEN, LOOSE, BACKED OUT TERMINALS AND REPAIR AS NECESSARY.
PIT-55082016-08-25. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON HOW TO DIAGNOSE AND REPAIR VEHICLES WITH ONE OF THE TWO CONCERNS. VEHICLE MAY HAVE AN INTERMITTENT "SERVICE POWER STEERING, DRIVE WITH CARE" ON THE DRIVER INFORMATION CENTER AND A DIAGNOSTIC TROUBLE CODE C0545 SYMPTOM 00 SET IN THE POWER STEERING CONTROL MODULE. OR THE VEHICLE MAY HAVE INOPERATIVE AIR CONDITION CAUSED BY ANY OF THE FOLLOWING DIAGNOSTIC TROUBLE CODE B393B, FUSE F60UA OR F35UA BEING OPEN, OR A POOR AIR CONDITION COMPRESSOR CLUTCH GROUND. TECHNICIAN WILL GAIN ACCESS TO THE WIRE HARNESS UNDER THE AIR CONDITION COMPRESSOR, INSPECT FOR DAMAGE WIRES AND REPAIR THE WIRES.
PIT-5457-A2016-08-13. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS FOR DIAGNOSING THE CONCERN, AND COMPLETING A WIRING REPAIR. THE VEHICLE MAY HAVE A SERVICE ANTILOCK BRAKING SYSTEM, TRACTION CONTROL, POWER STEERING OR SUSPENSION SYSTEM MESSAGE ON THE DRIVERS INFORMATION CENTER.
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."