MY JEEP GRAND CHEROKEE HAS A BAD VENTILATION SYSTEM. THIS IS A MANUFACTURING DEFECT WHICH AFFECTS ALL JEEP GRAND CHEROKEE'S MANUFACTURED WITH AUTO CLIMATE CONTROLS FROM 1999-2004. I HAVE HAD TO BRING MINE IN FOR REPAIR TWICE NOW, AND IT HAS ONCE AGAIN FAILED. THE LEVERS IN THE VENTILATION DUCTS HAVE PLASTIC COMPONENTS WHICH, OVER TIME, BREAK DOWN AND CRACK CAUSING COLD-ONLY OR HOT-ONLY AIR TO BLOW FROM THE VENTS. THIS ISSUE CAUSES MAJOR FOGGING OF THE WINDSHIELD AT TIMES DEPENDING UPON HOW THE LEVERS GET STUCK, WHICH IS A SERIOUS AND MAJOR SAFETY CONCERN- I HAVE TO PULL OVER AND WIPE THE WINDSHIELD DOWN SO I CAN SEE. I LEAD A GROUP COMPRISED OF OVER 1000 PEOPLE WHO HAVE FORMED EXPRESSLY AS A RESULT OF THIS MATTER; ALL OF OUR VEHICLES ARE AILING, AND REST ASSURED, THERE ARE THOUSANDS MORE OUT THERE WITH THIS PROBLEM WHO PROBABLY AREN'T EVEN AWARE OUR GROUP UNITED AGAINST DAIMLER CHRYSLER EVEN EXISTS. IT WOULD BE IN DC'S BEST INTEREST TO ISSUE A RECALL OR SETTLEMENT AGREEMENT BEFORE THIS TURNS INTO ANOTHER CLASS-ACTION SUIT LIKE THEY EXPERIENCED WITH THE 99-03 JEEP GRAND CHEROKEE BRAKE ROTOR/CALIPER MATTER EARLIER IN THE YEAR. *JB