Romain Grosjean has urged Haas to get to the bottom of a recurring technical fault in 2016.
More than once this year, the new American outfit has been halted by mysterious and dangerous failures to the front wing.
The latest was in Montreal last weekend, and Grosjean told Canal Plus: "This is the third time we have lost the front wing in a race. I think I'm going too fast for the car!
"We have to find the explanation, because we were not very far from points. I was doing the maximum I could, really on the limit everywhere with the car, and then the wing broke all by itself.
"Afterwards I got the most I could from the car so I'm pretty happy with the race, but we need to manage to solve all of these problems."
The championship continues with the European Grand Prix this weekend.
