The following two web sites confirm the information below:

http://www.snopes.com/autos/techno/wetroad.asp
http://www.icbc.com/Road_Safety/roadsafety_tips_season_wet.asp

       Subject: Fw: DIDJA KNOW THIS about cruise control?

             I wonder how many people know about this? A 36 year old
female had an accident several weeks ago and totaled her car. A resident
of Kilgore, Texas, she was traveling between Gladewater & Kilgore. It
was raining, though not excessively, when her car suddenly began to
hydro-plane and literally flew through the air. She was not seriously
injured but very stunned at the sudden occurrence!

             When she explained to the highway patrolman what had
happened he told her something that every driver should know - NEVER
DRIVE IN THE RAIN WITH YOUR CRUISE CONTROL ON.

             She thought she was being cautious by setting the cruise
control and maintaining a safe consistent speed in the rain.

             But the highway patrolman told her that if the cruise
control is on when your car begins to hydro-plane and your tires lose
contact with the pavement, your car will accelerate to a higher rate of
speed making you take off like an airplane.

             She told the patrolman that was exactly what had occurred.
The patrolman said this warning should be listed, on the driver's seat
sun-visor - NEVER USE THE CRUISE CONTROL WHEN THE PAVEMENT IS WET OR
ICY, along with the airbag warning.

             We tell our teenagers to set the cruise control and drive
a safe speed - but we don't tell them to use the cruise control only
when the pavement is dry.

             The only person the accident victim found, who knew this
(besides the Patrolman), was a man who had a similar accident,
totaled his car and sustained severe injuries.

             NOTE: Some vehicles (like the Toyota Sienna Limited XLE)
will not allow you to set the cruise control when the windshield wipers
are on. Cool!!!

BoB