Look under there they are a bitch to get to,but you can test them with a meter...and they could just be out of adjustment.
I think theres 3 total one on the brake and 2 on the clutch one on the clutch deactivates the cruise when you start to push the clutch.....the other is for when you push the clutch in to start the car.
On the brake I think one switch does both the brakelights and the cruise cancel,but it might be 2 separate ones.Its been a while...lol
Not only can they be out of adjustment,but I have had the "dick" break off on the switch(for lack of better term)LOL
When you look under there and work the pedals by hand you will be able to see what they should be doing and make adjustments and test them out.
I have some spares if it is a switch..LMK I will send you one