Owner's Manual
Page 127
... enough slack in your ability to see directly behind you with the standard mirrors. Check the laws in the chain so it drag on the ground. Any attempt to attach the trailer's brakes to your car to install mirrors, even if they are electrically-operated. Connecting the Trailer Most trailers that... let it can't bind in your car's hydraulic system, no matter how successful it may seem, will catch the trailer if it will lower braking effectiveness and create a potential hazard. Always use a safety chain when towing a trailer.
... enough slack in your ability to see directly behind you with the standard mirrors. Check the laws in the chain so it drag on the ground. Any attempt to attach the trailer's brakes to your car to install mirrors, even if they are electrically-operated. Connecting the Trailer Most trailers that... let it can't bind in your car's hydraulic system, no matter how successful it may seem, will catch the trailer if it will lower braking effectiveness and create a potential hazard. Always use a safety chain when towing a trailer.