2013 Hyundai Sonata Owner's Manual - Page 286

Driving your vehicle WARNING - Tire chains • The use of chains may adversely affect vehicle handling. • Do not exceed 20 mph (30 km/h) or the chain manufacturer's recommended speed limit, whichever is lower. • Drive carefully and avoid bumps, holes, sharp turns, and other road hazards, which may cause the vehicle to bounce. • Avoid sharp turns or lockedwheel braking. Use high quality ethylene glycol coolant Your vehicle is delivered with high quality ethylene glycol coolant in the cooling system. It is the only type of coolant that should be used because it helps prevent corrosion in the cooling system, lubricates the water pump and prevents freezing. Be sure to replace or replenish your coolant in accordance with the maintenance schedule in section 7. Before winter, have your coolant tested to assure that its freezing point is sufficient for the temperatures anticipated during the winter. Change to "winter weight" oil if necessary In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you should use, consult an authorized HYUNDAI dealer. Check spark plugs and ignition system Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. CAUTION • Chains that are the wrong size or improperly installed can damage your vehicle's brake lines, suspension, body and wheels. • Stop driving and retighten the chains any time you hear them hitting the vehicle. Check battery and cables Winter puts additional burdens on the battery system. Visually inspect the battery and cables as described in section 7. The level of charge in your battery can be checked by an authorized HYUNDAI dealer or a service station. 5 44