2008 Infiniti G37 Owner's Manual - Page 311

COLD WEATHER DRIVING ● The steering wheel is forcibly turned beyond its operation limits. ● The battery voltage is reduced. Repeated steering maneuvers that may activate the protection mechanism will damage the 4WAS system. FREEING A FROZEN DOOR LOCK To prevent a door lock from freezing, apply deicer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole or use the Intelligent Key system. TIRE EQUIPMENT SUMMER tires have a tread designed to provide superior performance on dry pavement. However, the performance of these tires will be substantially reduced in snowy and icy conditions. If you operate your vehicle on snowy or icy roads, INFINITI recommends the use of MUD & SNOW or ALL SEASON tires on all four wheels. Consult an INFINITI dealer for the tire type, size, speed rating and availability information. For additional traction on icy roads, studded tires may be used. However, some U.S. states and Canadian provinces prohibit their use. Check local, state and provincial laws before installing studded tires. Skid and traction capabilities of studded snow tires, on wet or dry surfaces, may be poorer than that of non-studded snow tires. Tire chains may be used. For details, see "TIRE CHAINS" in the "8. Maintenance and do-ityourself" section of this manual. ANTIFREEZE In the winter when it is anticipated that the outside temperature will drop below 32°C (0°F), check antifreeze to assure proper winter protection. For additional information, see "ENGINE COOLING SYSTEM" in the "8. Maintenance and do-it-yourself" section. WARNING The 4WAS system, although a sophisticated device, cannot prevent accidents resulting from careless or dangerous driving techniques. Ultimately the responsibility for safety of self and others rests in the hands of the driver. Therefore only through attentive and careful driving methods can the 4WAS system be fully appreciated and safety optimized. BATTERY If the battery is not fully charged during extremely cold weather conditions, the battery fluid may freeze and damage the battery. To maintain maximum efficiency, the battery should be checked regularly. For additional information, see "BATTERY" in the "8. Maintenance and do-it-yourself" section. DRAINING OF COOLANT WATER If the vehicle is to be left outside without antifreeze, drain the cooling system, including the engine block. Refill before operating the vehicle. For details, see "ENGINE COOLING SYSTEM" in the "8. Maintenance and do-it-yourself" section. For all-wheel drive If you install snow tires, they must also be the same size, brand, construction and tread pattern on all four wheels. Starting and driving 5-51