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Service bulletin PI0859

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 id10126184
Published by NHTSA2017-12-22
Manufacturer's numberPI0859
Manufacturer's date2012-11-15
NHTSA componentSTEERING

NHTSA's summary

This preliminary informational bulletin provides a procedure on replacing the inlet and outlet hoses on the power steering gear to correct the condition of the power steering gear leaking fluid

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering

Vehicles listed
CADILLAC XTS2013

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
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.
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.
PIC5714A2023-12-11. Service bulletin. Steering Wheel Control Next Or Previous Favorite Switch Operation.
122752023-12-11. Service bulletin. Service Update for Inventory Vehicles Only Steering Wheel Doesn't Heat, Horn Continuous, Battery Drain Expires December 31, 2013
130232001D2023-12-11. Service bulletin. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions
130232001B2023-12-11. Service bulletin. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions
130232001A2023-12-11. Service bulletin. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions
1302320012023-12-11. Service bulletin. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature Conditions