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April 23, 2018 Service bulletin

Steering

Chevrolet technical service bulletin PIT5593A for 2017-2018 Chevrolet Silverado 1500, 2017-2018 Chevrolet Tahoe and 2017-2018 GMC Sierra 1500 and others.

Bulletin number
PIT5593A
Component
Steering
Summary
This Preliminary information communicates a power steering control module calibration error that does not allow its DTC's to transition to history and they always stay current, which can mislead a technician diagnosis. Dealers are to reprogram the power steering control module with updated calibration which will allow DTC's to transition to history if the issue that caused the DTC(s) are now longer present.

Owners of these vehicles have filed 191 complaints in the steering category.

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