Service bulletins for the 2018 Buick Envision
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.
855 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Power steering are shown. Show all
| 17-NA-340 | 2021-04-15. Service bulletin. STEERING:HYDRAULIC POWER ASSIST SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 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. |
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| PIC6073D | 2018-03-12. Service bulletin. ELECTRICAL SYSTEM; STEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.