2004 Subaru Impreza Owner's Manual - Page 348

Driving tips use towing mirrors that conform with Federal, state/ province and/or other applicable regulations. ! Trailer lights Connection of trailer lights to your vehicle's electrical system requires modifications to the vehicle's lighting circuit to increase its capacity and accommodate wiring changes. To ensure the trailer lights are connected properly, please consult your SUBARU dealer. Check for proper operation of the turn signals, the brake lights and parking lights each time you hitch up. In the event your vehicle gets a flat tire when towing a trailer, ask a commercial road service to repair the flat tire. If you carry a regular size spare tire in your vehicle or trailer as a precaution against getting a flat tire, be sure that the spare tire is firmly secured. Direct splicing or other improper connection of trailer lights may damage your vehicle's electrical system and cause a malfunction of your vehicle's lighting system. ! Tires Make sure that all the tires on your vehicle are properly inflated to the pressure specified on the tire placard located on the left center pillar of your vehicle. Trailer tire condition, size, load rating and proper inflation pressure should be in accordance with the trailer manufacturer's specifications. Never tow a trailer when the temporary spare tire is used. The temporary spare tire is not designed to sustain the towing load. Use of the temporary spare tire when towing can result in failure of the spare tire and/or less stability of the vehicle. ! Trailer towing tips " Never exceed 45 mph (72 km/h) when towing a trailer in hilly country on hot days. " When towing a trailer, steering, stability, stopping distance and braking performance will be different from normal operation. For safety's sake, you should employ extra caution - CONTINUED - 8-37