theres a micro switch on the drivers side bonnet catch, rather than adjustment on the bonnet i would say the latch is not engaging properly. take the latch of the car and give it a good clean and regrease, test the switch while its off but i reckon it will be ok after a clean. they get filled with crap and dont work as smooth as they should with age, i cleaned mine the other day because the lever in the car was getting hard to pull, after the clean its back to being nice and easy.