Are impressions or vasanas found in the Pali Canon? According to this answer:


  Kilesa has a residual impression which is called vāsanā which even
  arhats have. Only a Buddha eliminates that. This is what drives
  habits. Many habits are reflexive and there no much thoughts of the
  intention behind it. If it is purely reflexive it does not have karmic
  consequences.


Are vasana or residual impressions found in the Pali Canon? Preferably in the Sutta Pitaka.

What about the statement that arhats or arahants still have vasanas, but Buddha does not? Is this also in the Pali Canon?

Would arahants still have impressions although they had eliminated latent tendencies (anusaya)?
Vasana (Tendency Continues Life After Life)
Predisposition plays a role in a person's life, past or present. Tendency to proliferate bad habits in promoted by kelisa (mental defilement). Vasana based on morality
or good deeds is classified as samma chanda (wholesome wish). This vasana is inherent in the mind-continuum of all beings. Thus in your past kamma actions if you
have cultivated greed along with them, your vasana will now be greedy in nature. If
you do not reform this bad tendency in this existence, raga carita vasana will continue to dominate you in your future births as well. Dosa, moha, and vitakka characters
also, will continue to dominate likewise. If you are endowed with paññā carita now
and if you cultivate wisdom continually, this tendency will produce its own result here
and hereafter. You will be reborn a person with paññā in forthcoming existences.

Abhidhamma in Daily Life by Ashin Janakabhivamsa