To Resume A Set Speed
Suppose you set your cruise control at a desired speed with the "SET" button and then you apply the brake. This shuts off the cruise control. But you do not need to reset it. Once you're going 40 km/h (25 mph) or more, you can move the cruise control switch from "ON" to "R/A" (Resume/Accelerate) for about half a second.You will go back to the preset chosen speed and stay there.
If you shift into "P" (Park) after you set a cruise control speed, you will erase the systems memory. Moving the switch to "R/A" will not restore the speed you set.