WHILE DRIVING MY 2017 CHEROKEE LATITUDE ON THE INTERSTATE, A "SERVICE SHFTER" WARNING APPEARED AND ALL THE RED LIGHTS ON THE SHIFTER (P, R, N &D) ALL ILLUMINATED. I WAS ABOUT A MILE AWAY FROM A CUSTOMER, SO I PULLED IN AND PUT THE JEEP IN PARK. HOWEVER, WHEN I TOOK MY FOOT OFF THE BRAKE, THE JEEP WENT FORWARD HITTING MY CUSTOMERS FENCE