Comfort

• When tire tread wears down, the ride quality goes down with it. First, the comfort of driving on the road begins to deteriorate, and you'll feel the road more than when you first bought your tires. A smooth drive down the street becomes a tedious task, with the driver and passengers beginning to feel every bump and dip in the road. Driving on an uneven road with tire treads worn down can cause jolting in the car, making everyone very uncomfortable. Usually the passengers will feel the jolting more than the driver. However, the driver will notice the wear on the tires when making turns.
  
  

Safety

• Comfortable driving is not the only thing you are robbed of with tire treads wearing down. Safety becomes an issue when tires can no longer hold to the road. Wet streets become more hazardous if your car's tires are sliding when you have to break at a red light or intersection. Even turning onto a street requires a bit more care with worn out tire treads. A vehicle with worn-out tire treads can actually flip over when making a sharp turn onto a street. Regardless of the other safety features of your car or the quality of your vehicle, tires are your car's means of contact with the ground. Your tires will not support your vehicle if the treads are worn out. Tire treads also aid a vehicle in stopping by providing traction and friction on the road. When tire treads wear out, the capacity to stop or slow down your vehicle is reduced. Skidding and sliding can occur without warning with warn-down treads. It is best to check your tires regularly, ensuring that there is enough tread remaining. Tires can be checked by placing a penny turned downward in the tire tread. As long as you can't see the whole face on the penny, your tires should be alright for awhile longer. If you see the face entirely, then you need to get to a tire shop as soon as possible.
  
  

Uneven wear

• Balance is important to your car and your tires. Tires can wear unevenly if your car is out of alignment. Uneven wear can be easily identified by looking at the tire treads on all tires. If the inner edge of the tire is worn more than the outer edge, or vice versa, then your car is probably out of alignment. Misalignment can cause your tires to wear down more quickly by putting too much pressure on one side of the tire. Taking your car in to have your alignment checked after 5,000 miles can save you from spending money on tire replacements. It's also a good idea to have your tires rotated every 5,000 miles.