I would check the emergency brake set up, if it is an inner rotor or drum set up you could have a sticking pad or bad return springs, corrosion or things of that nature.
corsa head lights want work
how do i put fog lights on
What about them?
lights are very dim
there are 2
have you checked the bulbs and fuses
Turn light switch clockwise
most likely a poor earth
fuse 25 20amp under bonnet
1 reverse light and 1 tail light
Most corsa hazards work off separate fuses. i would start with that as that is the cheaper option.
Either your charging system is not working, or the lens is clouded, scratched, or discolored from the sun.