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November 14, 2019 Service bulletin

This Preliminary information communicates that a customer may come to the dealer with a complaint of a...

Chevrolet technical service bulletin PIT5720 for 2019-2020 Chevrolet Blazer, 2017-2020 GMC Acadia and 2018-2020 Chevrolet Traverse and others.

Bulletin number
PIT5720
Component
Visibility
Summary
This Preliminary information communicates that a customer may come to the dealer with a complaint of a hum, drone or pulsing type noise at times. On investigation the dealer may discover that this concern only occurs when the customer is driving with one or both rear windows down or one front window down. The dealer is instructed to advise the customer that if this is occuring with rear windows down to open a front window or the sunroof (if equipped) or if it is occurring with a front window down to open the other front window or the sunroof (if equipped) to alleviate this concern.

Owners of these vehicles have filed 40 complaints in the visibility category.

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