wipers gone wild

[H2-USA]

My 2003 had a very similar problem. After days of raining, the front wipers would go on and off whenever they wanted - no way to control.
The rear wipers would go on/off and it would continually pump out the washer fluid. I pulled ALL of the Wiper related fuses under the hood. With this done, nothing wierd happened with the wipers or washer, and I WAS able to use the front wipers with the proper controls.

There was a recall on the GM washer assemble for most, if not all similar vehicles (Suburban./Yukon, etc...)

Contact your dealer and have them fix it.

Happy Motoring!