Hood problems of the 2009 Jeep Wrangler

The contact owns a 2009 Jeep Wrangler 4x4 sport (na). While driving approximately 65-70 mph, another vehicle passed the vehicle in the opposite direction and the wind caused the hood to open approximately an inch and a half. Then the hood closed very hard. The failure continued every 100 miles every time a commercial vehicle passed. The contact called the dealer who stated that the failure was not normal. The vehicle had not been inspected or repaired. The failure mileage was approximately 6,300 and the current mileage was approximately 7,500. Updated 3/14/11.