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Service bulletin PIC6048E

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 id10098421
Published by NHTSA2017-05-05
Manufacturer's numberPIC6048E
Manufacturer's date2016-09-14
NHTSA componentSTEERING:ELECTRIC POWER ASSIST SYSTEM

NHTSA's summary

THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT SOME CUSTOMERS MAY COMMENT ON THE OPERATION OF THEIR HAPTIC SEAT DURING A LANE KEEP ASSIST EVENT. LANE KEEP ASSIST WORKS DIFFERENTLY THAN LANE DEPARTURE WARNING. THE LANE KEEP ASSIST ICON IS SOLID AMBER, FORWARD CAMERA MODULE IS ACTIVELY COMMANDING A TORQUE TO ELECTRONIC POWER STEERING. THIS MEANS THAT THE DRIVER SHOULD ALSO FEEL SOME FEEDBACK FROM THE STEERING WHEEL. NO CHIMES OR HAPTIC IN THE SEAT. LANE KEEP ASSIST ICON IS FLASHING AMBER; FORWARD CAMERA MODULE IS ACTIVELY COMMANDING TORQUE TO ELECTRONIC POWER STEERING. THIS WILL ALSO BE ACCOMPANIED WITH LANE DEPARTURE WARNING CHIMES AND HAPTIC IN THE SEAT FEEDBACK BASED ON THE SETTING CHOSEN IN THE VEHICLE SETTINGS. THIS WILL TAKE PLACE WHEN THE VEHICLE HAS CROSSED LANE MARKING BY (40 CM) OR (15.75 IN).

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
BUICK ENVISION2016, 2017
BUICK LACROSSE2017
CADILLAC ATS2015, 2016
CADILLAC CT62016
CADILLAC CTS2016
CADILLAC XT52017
CADILLAC XTS2015, 2016
GMC ACADIA2017

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

Recalls for the same vehicles and component
25V1750002025-03-20. STEERING:ELECTRIC POWER ASSIST SYSTEM
19V0860002019-02-07. STEERING:ELECTRIC POWER ASSIST SYSTEM
17V1160002017-02-23. STEERING:ELECTRIC 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
18207 012022-05-31. Service bulletin. Customer Satisfaction. Certain vehicles may have a condition in which the power steering gear motor could separate from the steering gear housing due to corrosion of the attaching bolts. If the motor separates, power steering assist may be reduced or lost, and the driver may experience an unexpected increase in steering effort, especially at low speeds. Replace the bolts that attach the electric power steering motor to the steering gear and add a protective wax coating to each bolt and the seam around the electric power steering motor. If the bolts cannot be removed due to corrosion, the steering gear must be replaced. ** Revised Parts Information **
182072022-05-31. Service bulletin. Customer Satisfaction. Certain vehicles may have a condition in which the power steering gear motor could separate from the steering gear housing due to corrosion of the attaching bolts. If the motor separates, power steering assist may be reduced or lost, and the driver may experience an unexpected increase in steering effort, especially at low speeds. Replace the bolts that attach the electric power steering motor to the steering gear and add a protective wax coating to each bolt and the seam around the electric power steering motor. If the bolts cannot be removed due to corrosion, the steering gear must be replaced.
17-NA-3402021-04-15. Service bulletin. Service Power Steering Message Displayed with a Loss of Power Steering Assist and DTC C056E-5A Set Condition Some customers may comment on a Service Power Steering Message displayed with a loss of power steering assist. During diagnosis a technician may find DTC C056E-5A set or stored in the history. Cause This may be due to the Smooth Road Shake Compensation algorithm in the power steering module. Correction Reprogram the power steering control module.
17-NA-2842021-04-14. Service bulletin. Reduced Steering Assist Message with DTC C0460 Sym 5A Condition Some customers may comment on a Reduced Steering Assist message on the DIC with no loss of steering assist. During diagnosis a technician may find DTC C0460 Sym 5A. Cause The condition is due to Steering Angle Sensor trim error. Note: The calibration allows for an error to set without actual loss of assist. Correction Reprogram the Power Steering Control Module.
18NA0092018-06-04. Service bulletin. This technical bulletin provides a procedure to replace the P/S hose, O2 sensor and engine harness if P/S fluid has been found leaking and the cause of the Mil on.
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.
17-NA-1582018-05-21. Service bulletin. This informational bulletin explains to diagnose and repair the P0128 code before just replacing the power steering gear.
17NA2842018-04-23. Service bulletin. This technical bulletin provides a procedure to reprogram the power steering control module to correct a condition of Reduced Steering Assist Message with DTC C0460 Sym 5A due to a software abnormality.
PIC6073D2018-03-12. Service bulletin. This Preliminary Information communication provides information to the technician about the Media Oriented Systems Transport Bus Diagnostic Tool Kit (EL-51578) has been released to help diagnose any of the Media Oriented Systems Transport bus concerns. The kit contains header connectors that are installed to bypass Media Oriented Systems Transport bus modules. The bypass connector also contains a terminal for verifying Media Oriented Systems Transport control circuit voltages. Technician should review Media Oriented Systems Transport bus description and operation and Diagnostic Trouble Code U0028 diagnostic procedures.
PIP55452018-02-21. Service bulletin. This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair.