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GMC TSB #GCUS-3-908
2017 GMC Acadia
TSB Document:
Affected Component: ELECTRICAL SYSTEM:SOFTWARE
- Summary
- 17056 - Service Update. Certain vehicles may have a condition in which condensation from the HVAC module can leak into the housing of the active noise cancellation (ANC) module. This can lead to electronic failures inside the ANC module such as erratic audio from the speakers, popping noises, intermittently inoperative, to complete loss of audio. Dealers are to inspect the ANC module for corrosion, replace if corrosion is present, and add a service shield over the ANC module.
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