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November 1, 2017 Service bulletin

Service Power Steering Message Displayed with a Loss of Power Steering Assist and DTC C056E-5A Set...

Buick technical service bulletin 17-NA-340 for 2017-2018 Buick Envision.

Bulletin number
17-NA-340
Component
Steering: hydraulic power assist system
Summary
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.

Owners of these vehicles have filed 12 complaints in the steering category.

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