Creo ModelCHECK > checks > SRF_NOT_REF_BY_ANNTN (Surfaces Not Referenced By Any GTOL or Dimension)
  
SRF_NOT_REF_BY_ANNTN (Surfaces Not Referenced By Any GTOL or Dimension)
Y/E/W
Reports the GTOLS and dimensions that do not reference any surface as placement and non placement references.
Suggested Settings:
Inter
Batch
Regen
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E
E
W
W