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January 29, 2016 Service bulletin

Service update (revised special repair tool added)

GMC technical service bulletin GCUS-3-424 for 2016 GMC Acadia, 2016 Chevrolet Traverse and 2016 Buick Enclave.

Bulletin number
GCUS-3-424
Component
Equipment
Summary
15663a - service update (revised special repair tool added). Relocate a wire circuit within the onstar connector. These vehicles lack a ground in the microphone return path, which results in the voice recognition becoming inoperable when the vehicle is in retained accessory (rap) or accessory power mode. In addition, the hands-free voice quality can be degraded. The onstar functions are not impacted by this condition.

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