2005 Hummer H2 wipers, windshield & visibility problems

Driving home I began to smell and electrical burning smell. It began very quickly and came and went for about 2 miles. I pulled over and looked and could not see smoke or fire so I continued home. I drove the remaining 4 miles to my home and immediately got my husband to check as the cab had filled with the smell of an electrical fire. He located the area the smell was strongest and then watched as smoke came out.

Windshield wipers work intermittently, come on by themselves, then won't shut off. The problem has happened 5 times in 3 days. Same problems as the 2003 recall for same item.....dealer said water in motor and or module causing problem . Have to be replaced. Waiting to here from GM assistance.