Subaru Outback Manuals 2018 Outback Owner's Manual | Page 374

8-26 Driving tips/Trailer towing (Outback) & Trailer Hitches S08AL03 WARNING Never drill the frame or under-body of your vehicle to install a commer- cial trailer hitch. If you do, danger- ous exhaust gas, water or mud may enter the passenger compartment through the drilled hole. Exhaust gas contains carbon monoxide, a colorless and odorless gas which is dangerous, or even lethal, if inhaled. Also, drilling the frame or under- body of your vehicle could cause deterioration of strength of your vehicle and cause corrosion around the drilled hole. CAUTION . Do not modify the vehicle ex- haust system, brake system, or other systems when installing a hitch or other trailer towing equipment. . Do not use axle-mounted hitches as they can cause damage to the axle housing, wheel bearings, wheels or tires. Do not use a trailer hitch other than genuine SUBARU trailer hitch. A genuine SUBARU hitch is available from your SUBARU dealer. & Connecting a trailer S08AL04 ! Trailer brakes S08AL0401 WARNING . Adequate size trailer brakes are required when the trailer and its cargo exceed 1,000 lbs (453 kg) total weight. . Do not directly connect your trailer’s hydraulic brake system to the hydraulic brake system in your vehicle. Direct connection would cause the vehicle’s brake performance to deteriorate and could lead to an accident. If your trailer’s total weight (trailer weight plus its cargo weight) exceeds 1,000 lbs (453 kg), the trailer is required to be equipped with its own brake system. Electric brakes or surge brakes are re- commended, and must be installed prop- erly. Check that your trailer’s brakes con- form with Federal, state/province and/or other applicable regulations. Your SUBARU’s brake system is not designed to be tapped into the trailer’s hydraulic brake system. Please ask your SUBARU dealer and professional trailer supplier for more information about the trailer’s brake system. ! Trailer safety chains S08AL0402 WARNING Always use safety chains between your vehicle and the trailer. Towing trailer without safety chains could create a traffic safety hazard if the trailer separates from the hitch due to coupling damage or hitch ball damage. In case the trailer hitch connector or hitch ball should break or become discon- nected, the trailer could get loose and create a traffic safety hazard. For safety, always connect the towing vehicle and trailer with trailer safety chains. Two chains should be used in total, one to the right side and the other to the left side trailer tongue. Pass the chains crossing each other under the trailer tongue to prevent the trailer from dropping onto the ground in case the trailer tongue should disconnect from the hitch ball. Allow sufficient slack in the chains taking tight turn situations into account; however, be careful not to let them drag on the