One problem related to clutch pedal/linkage has been reported for the 2018 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Ford Mustang based on all problems reported for the 2018 Mustang.
Intermittently, the clutch pedal will be stuck to the floor after pressing it to switch gears. It happened to me when I was going from neutral to 1st gear and from 1st gear to second gear which is a huge safety concern as the car stalled and I almost hit someone and someone almost hit me. It has only happened to me 2 times in the last month because I found the source of the problem. The clutch return line is at fault because it seems to be very short. Because of it being short, it has a lot of tension on it. Because of the car having a flat plane crank, I believe the excessive vibrations that the engine creates might make this line back off over time. My car only had 5,000 miles when this happened and it was very frightening. The line is an interference fit on the fluid reservoir and its cause the line to slowly leak every time you touch the line because the seal isn't good enough. To temperately remedy this issue, I have just been pushing the line back on. This isn't a good fix and Ford needs to recall these cars because it can cause a bad accident especially at speed. The picture attached is a picture of the line that is in question. In the picture, the line was fitted correctly on the fluid reservoir. This is just to show the faulty line in question. I hope Ford can recall these cars ASAP because I'm scared to drive it really.