1998 Buick Century Owner's Manual - Page 233

Rear Towing NOTICE: Do not tow with sling-type equipmentor the rear bumper valance will be damaged. Use wheel-lift or car-carrier equipment. Additional ramping may be required for car-carrier equipment. Use safety chains and wheel straps. Use the T-slots for car-carrier securing. Towing a vehicle over rough surfaces could damage a vehicle. Damage can occur from vehicle to ground or vehicle to wheel-lift equipment. To help avoid damage, install a towing dolly and raise the vehicle until adequate clearance is obtained between the ground and/or wheel-lift equipment. Do not attach winch cables or J-hooks to suspension components when using car-carrier equipment. Always use T-hooks inserted in T-hooks slots. Using a towing dolly for your drive wheels is recommended if your vehicleis towed more than 500 cumulative miles (800 km) orexceeds 50 mph (80 km/h). 5-13