On Sunday and for the fourth consecutive grand prix, Perez failed to score a point, since it was announced he was leaving Sauber and joining McLaren as Lewis Hamilton's replacement.
In Abu Dhabi, Perez was dicing for fifth position with Romain Grosjean in his Lotus and Force India's Paul di Resta, only to suffer.
Running off the Yas Marina circuit at one point, Perez made a hasty return and collided with Grosjean, who in turn collected Red Bull's Mark Webber, resulting in the latter duo retiring.
The stewards, that included British Racing Drivers' Club president Derek Warwick, took a dim view of Perez's manoeuvre, hitting him with a 10-second stop-go penalty for causing a collision, resulting in him finishing 15th.
It is clear Perez has lost his way of late, and whilst Kaltenborn is adamant the poor form since signing for McLaren is "a coincidence", she will nevertheless sit down with the 22-year-old to discuss the matter.
"He knows how important it is for us to score at the remaining races," said Kaltenborn. "Maybe it's his inexperience that sometimes pushes him to do more than he should.
"That's nothing we can reproach him for because he's trying his best to do something good for the team before he leaves.
"But we definitely will talk to him, although I think he is mature enough to know what is at stake.
"He knows doing well in his current team is also very good for his career when he leaves for the next team.
"That is something that will be appreciated, not only by us, but also the future team because he could be in that situation there as well.
"He's aware of that and he's really trying his best."
Kaltenborn felt Perez was "harshly punished" for his indiscretion in the race, but added: "We know the FIA is tough on these situations, so all we can do is accept it and make sure he doesn't do it again."
As far as Perez's future boss is concerned, McLaren team principal Martin Whitmarsh was recently quoted as saying that whilst the Mexican "has something", he does not know "if it is enough to be groomed into a future world champion".
One paddock rumour is that McLaren signed Perez as a knee-jerk reaction upon learning of Hamilton's exit, deciding not to speak with any other driver.
Defending his remark and decision to sign Perez, Whitmarsh said; "He is 22 years old, the same age now as when Lewis started in Formula One.
"He has a lot of talent, and we would not have signed him unless we thought he could go to another level.
"Obviously we don't know (about his championship credentials) because he has never experienced the type of pressure Jenson and Lewis are under.
"You turn up in a McLaren, and if you are not on the front couple of rows then there is a lot of pressure applied on you.
"Jenson and Lewis know that, they have experienced it, they live it, but they live with it, thrive and do well.
"There have been drivers who have talent, can live with that pressure and deliver, and others that can't.
"It would be foolish of me to sit here and say that in taking a very young driver there is not an element of risk.
"But we wouldn't have done it unless we felt there was a possibility (of him becoming champion).
"Time will tell, and we'll have that inquest next year."