My '05 has done this many times. My fix has been to get a spray can of White Lithium Grease and lube it up. If you look under the dash where the rod goes thru the firewall, there is the starter interlock switch (so you have to push in clutch to start). Undo the little plastic click lock and it slides back. You will be able to move/slide the switch back to see a white plastic washer and a foam grommet of sorts.
It will make more sense when you get out and under the dash.
Ok, now, the clutch rod/shaft slides through a rubber grommet in the firewall to the clutch cylinder. The squeaking/jerky operation comes when the rubber gets dry. So, lube the shaft with the lithium grease while you move the clutch pedal in/out. The grease should work itself in with in a day or so and the squeak will quit. Be generous with the grease.
Mine will usually be trouble free after this for 8-9 months before its time to repeat.
I promise its a lot easier than I've made it sound when you get out there and start the task.
Good luck.
FWIW, the dealer told me to do this.