Chevrolet 1994 Astro Passenger Owner's Manual page 97

To Resume a Set Speed
Suppose you set your Cruise Control at a desired speed and then you apply
the brake. This, of course, shuts off the Cruise Control. But you don't need
to reset it. Once you're going about 25 mph (40 k d h ) or more, you can
move the Cruise Control switch from ON to R/A (Resume/Accelerate) and
hold it for about half a second.
You'll go right back up to your chosen speed and stay there.
Remember, if you hold the switch at R/A (Resume/Accelerate) longer than
half a second, the vehicle will keep going faster until you release the switch
or apply the brake. You could be startled and even lose control. So unless
you want to go faster, don't hold the switch at R/A (Resume/Accelerate).
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