Chevrolet 2007 Corvette Owner's Manual page 151

When power is restored to the vehicle, the
hydraulic bolt must be tightened, by turning it
clockwise. The power convertible top button can
then be used to lower or raise the convertible top.
If the power convertible top is operated multiple
times, the engine should be running to prevent
drain on the vehicle's battery. Under certain
conditions, the Driver Information Center (DIC)
may display a message regarding the power top.
See DIC Warnings and Messages on page 214
for more information.
If the battery has been disconnected, the power
windows must be initialized for the power top
to operate. See Power Windows on page 86 for
more information.
151