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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 id10081084
Published by NHTSA2016-09-28
Manufacturer's numberG-208570
Manufacturer's date2014-12-19
NHTSA componentSTEERING

NHTSA's summary

14608 - SERVICE UPDATE. THIS BULLETIN PROVIDES A FURTHER SERVICE PROCEDURE TO INSPECT VEHICLES AND REPLACE THE POWER STEERING COOLER ASSEMBLY AS NEEDED ON CERTAIN VEHICLES THAT WERE PREVIOUSLY SERVICED PRIOR TO SEPTEMBER 9, 2014 PURSUANT TO RECALL BULLETIN 14356 (SINCE SUPERSEDED BY BULLETIN 14356A).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

Vehicles listed
CHEVROLET SILVERADO 25002015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002015 (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
20184822018-09-07. Steering
18V5860002018-09-07. STEERING:ELECTRIC POWER ASSIST SYSTEM
14V7190002014-11-10. STEERING:ELECTRIC POWER ASSIST SYSTEM
20145092014-11-07. Steering
20144432014-10-07. Steering
20142412014-06-19. Steering
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
PI0281L2025-06-12. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
13-02-32-001H2025-05-06. Service bulletin. This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.
25-NA-0652025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
16-NA-1092025-02-28. Service bulletin. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
04-06-01-029K2024-12-04. Service bulletin. This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
24-NA-1852024-10-22. Service bulletin. This informational bulletin provides information on Steering Bump or Clunk Noise on Rough Roads or Potholes.
PI1354J2024-02-14. Service bulletin. This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur on full size pickups and how to correct and repair.
143562024-01-16. Service bulletin. Inspect Power Steering Hose Clamps
PIT53122024-01-08. Service bulletin. Steering Column Grind Pop Bind Noise And/Or Feeling When Turning
PI3541J2024-01-04. Service bulletin. This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur on full size pickups and how to correct and repair.