NHTSA Complaint #11221168 — 2017 JEEP GRAND CHEROKEE

WHEN BEING TOWED BEHIND MY MOTORHOME, THE JEEP GRAND CHEROKEE WILL GO INTO AN EXTREME "WOBBLE" DURING A SLOW SPEED, SHARP TURN TO THE LEFT OR RIGHT, EITHER FROM A COMPLETE STOP OR NEAR STOP ON THE ROAD THAT THE TURN ORIGINATES FROM. IF EITHER STEERING TIRE ON THE JEEP HITS AN IRREGULARITY IN THE ROAD SURFACE (I.E. A BUMP, MANHOLE COVER, POTHOLE), THE STEERING WHEELS ON THE JEEP BEGIN RAPIDLY TURNING FROM LEFT TO RIGHT AND BACK AGAIN. THIS ACTION VIOLENTLY SHAKES NOT ONLY THE JEEP BUT THE ENTIRE MOTORHOME TOWING IT. THE ONLY WAY TO STOP THE OSCILLATING WHEELS IS TO BRAKE HARD AND NEARLY COME TO A COMPLETE STOP. THE BRAKING SYSTEM ON THE JEEP WHEN IT IS BEING TOWED IS OPERATED BY THE AIR BRAKES ON THE MOTORHOME THROUGH A SYSTEM THAT APPLIES THE BRAKES AS NEEDED (THE TOW BRAKING SYSTEM IS MANUFACTURED BY SMI AND CALLED THE AIR FORCE ONE SYSTEM). OF THE FOUR TIMES IT HAS HAPPENED TO ME OVER THE PAST YEAR, ONE WAS WHILE TURNING LEFT ONTO A FOUR-LANE DIVIDED HIGHWAY. I PULLED INTO THE LEFT (PASSING) LANE TO ACCELERATE BUT HAD TO NEARLY STOP TO GET THE JEEP TO STOP WOBBLING. A SEMI TRUCK IN THE RIGHT LANE HAD TO SLOW DOWN BECAUSE HE SAW ME STOPPING AND NEEDED TO TAKE PRECAUTIONARY ACTION IN CASE I VEERED RIGHT. IT WAS A SCARY MOMENT. THIS PROBLEM IS BEING TALKED ABOUT EXTENSIVELY IN RV FORUMS (SEE HTTP://WWW.IRV2.COM/FORUMS/F85/JEEP-GRAND-CHEROKEE-DEATH-WOBBLE-339594.HTML) AND THE PROBLEMS ARE IDENTICAL FOR ALL THE OWNERS OF 2016 OR LATER JEEP GRAND CHEROKEES. THIS PROBLEM HAS BEEN REPORTED TO THE NHTSA BY OTHERS (SEE NHTSA TRACKING NUMBER 11186936 FOR ANOTHER COMPLAINT ON THIS ISSUE). THIS PROBLEM APPEARS TO BE SIMILAR TO THE JEEP CHEROKEE TOWED VEHICLE WHEEL WOBBLE ISSUE THAT FCA CREATED A FIX FOR. PLEASE GET FCA TO RESOLVE THE ISSUE QUICKLY BEFORE SOMEONE IS KILLED OR SEVERELY INJURED.