The car is already at the dealership. I don't think they looked at it yet.
The warranty book says :
Transmission/Transaxle Coverage includes: All internally lubricated parts, case, torque converter, mounts, seals, and gaskets as well as any electrical components internal to the transmission/transaxle. Also covered are any actuators directly connected to the transmission (slave cylinder, etc.).
Exclusions: Excluded from the powertrain coverage are transmission cooling lines, hoses, radiator, sensors, wiring, and electrical connectors. Also excluded are the clutch and pressure plate as well as any Transmission Control Module and/or module programming.
Hopefully GM will acknowledge the problem and issue a recall. I always feeled like I noob when shifting this car. Something is not right with the clutch. Maybe I'll see a difference after the repair. Maybe there is a way to know if the clutch will go bad.
Is it using the same reservoir as the brakes? One of the caliper jammed this summer. It took a lot of force to push it back in when replacing the rotor. I wonder if it may be related.
That's it! The car is repaired free of charge. They also had to replace the clutch and pressure plate because the brake fluid has leak all over it and damaged it.
A big thank you to GM Ile-Perrot (Groupe Autoforce) for the service. Very appreciated.
It's been a couple of days driving my "new" car and I must say it does not feel the same at all. There was definitely something wrong from the factory.
Little update on my driving experience. The driving got back to "not so great" couples of weeks after the repair. After reading on the internet it seems to be a "dummy proof feature" of the clutch. I'll start a new thread for that.