Any car with cruise would have a cut out witch on the clutch and brake pedal
.I f it didn't and you stepped on the clutch to change gears the engine would
rev out of control,It is easy to ck your vehicle to see if it has a cut off
switch on the clutch ,just tap the pedal lightly while in cruise and it
should shut the system off.Then just hit resume and your back under way,
                  If it dosen't shut off you better find out why.This is the
beauty of having a cruise unit instead of just a throttle lever ,if while
under cruise you find a need to change gears or brake hard it automatically
shuts down without you having to think about it.