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GMC TSB #PIE0658A
2021 GMC Yukon
TSB Document:
Affected Component: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
- Summary
- This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the HVAC is stuck in defrost mode and can not change to vent or any other option.
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