Over the course of time, the normal wear and tear exerted on a clutch pedal can lead to the clutch beginning to slip, but the solution is usually quite simple. Adjusting the clutch pedal will help to prevent further slipping.
Most hydraulic clutch pedals have a self-adjustment feature which allows the driver to simply lift the pedal towards the seat, using their toe, in order to trigger the self-adjusting mechanism. This adjustment will alter the height of the pedal somewhat. A clutch that slips, a worn out clutch, too much travel on the pedal before resistance is felt, or experiencing difficulty in shifting are all good reasons to use the clutch’s self-adjustment feature.