2009 Toyota 4Runner Owners Manual - Page 249

2-5. Driving information n When connecting and disconnecting a trailer Set the electronically modulated air suspension system to LO mode and push the HEIGHT CONTROL OFF switch to turn off the rear height control air suspension. (if equipped) n Break-in schedule If your vehicle is new or equipped with any new power train components (such as an engine, transmission, differential and wheel bearing), Toyota recommends that you do not tow a trailer until it has been driven for over 500 miles (800 km). However, avoid full throttle acceleration. n Maintenance l If you tow a trailer, your vehicle will require more frequent maintenance due to the additional load. (See "Scheduled Maintenance Guide" or "Owner's Manual Supplement".) l Retighten the fixing bolts of the towing ball and bracket after approximately 600 miles (1000 km). When driving 2 CAUTION n Trailer towing precautions l Follow all the instructions described in this section. Failure to do so could cause an accident resulting in death or serious injury. l Exceeding the towing capacity, GVWR, GCWR or GAWR can cause an accident resulting in death or serious injuries. n To avoid accident or injury l Do not exceed the trailer hitch assembly weight, gross vehicle weight, gross axle weight and trailer tongue load capacities. l Do not exceed 45 mph (72 km/h) or the posted towing speed limit, whichever is lower. As instability (swaying) of the towing vehicle-trailer combination increases as speed increases, exceeding 45 mph (72 km/h) may cause loss of control. l Do not use cruise control when you are towing. l Slow down and downshift before descending steep or long downhill grades. Do not make sudden downshifts. 225