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GMC TSB #19-NA-136
2023 GMC Yukon
TSB Document:
Affected Component: POWER TRAIN
- Summary
- This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
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