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Service bulletin 16-NA-004

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 id10112291
Published by NHTSA2017-08-15
Manufacturer's number16-NA-004
Manufacturer's date2016-01-26
NHTSA componentSTEERING:HYDRAULIC POWER ASSIST SYSTEM; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING; STEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

This technical bulletin provides a procedure to perform a wire to wire repair on the engine harness to correct Intermittent Multiple IPC Warning Lamps Illuminated, Loss of Power Steering Assist, Service Power Steering Message on DIC, Malfunction Indicator Lamp Illuminated, Multiple HSLAN U-Codes Set

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

Electrical system, Steering, Power steering, Wiring and fuses

Vehicles listed
CHEVROLET EQUINOX2012, 2013, 2014, 2015, 2016
GMC TERRAIN2012, 2013, 2014, 2015, 2016

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.
1300890082023-12-11. Service bulletin. GM Wiring Repair Strategy Information
120232002A2023-12-04. Service bulletin. Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Pressure Hose During Extreme Low Temperature Operation (Replace Power Steering Fluid)
PI-1067B2021-04-16. Service bulletin. Malfunction Indicator Lamp (MIL) Light On, Reduced Power Mode, DTC Set, Poor Performance/Shifts In rare cases, some customers may comment that the malfunction indicator lamp is on, poor performance and reduced power mode on. Technicians may find DTC P0641 or various others set. Not all of the effects listed may be experienced. However, the different effects and driver notifications may be caused by one of the wires in the ECM harness being chafed or cut. Due to the cause of the condition, and the positions of the wires in the harness, it is unlikely that more than one circuit will be affected by the condition. This condition may be caused by the ECM wiring harness rubbing on the ECM bracket. The harness may have chafing or damage to the wires. Contact with the edge of the bracket may result in a rub-through of the wires within that harness.
100089005G2019-05-13. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
100089005H2019-03-18. Service bulletin. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.
10-00-89-005C2018-06-04. Service bulletin. This informational bulletin is a revision for 10-00-89-005B to add the 2014 model year and labor codes.
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.
PI1004A2018-05-29. Service bulletin. This preliminary bulletin provides a procedure to repair the engine wiring harness if the customer states MIL on multipul service messages displayed.