Hi,
Anyone had any problems with above.We have had our 07 back 3 times to be fixed and after a couple of months of being ok it looks like it is going again. thanks
Have a 05 Vectra and never had a problem with cruise control. Use it quite frequently on commute to work.
Regarding the speeding up going down a hill, this would be normal if it is a very steep hill, as cruise controls will not activate the brakes in order to slow down to the set speed, all it will do is take away acceleration altogether.