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If you have been driving your vehicle and think that a tire is underinflated, fill it to the
recommended cold inflation pressure indicated on your vehicle's tire information placard or certification label.
While your tire may still be slightly underinflated due to the extra pounds of pressure in the warm tire, it is
safer to drive air pressure that is slightly lower than the vehicle manufacturer’s recommended cold inflation
pressure than to drive with a significantly underinflated tire. Since this is a temporary fix, don’t forget to
recheck and adjust the tire’s pressure when you can obtain a cold reading.
1.5.5. Tire Size
To maintain tire safety, purchase new tires that are the same size as the vehicle’s original tires or another size
recommended by the manufacturer. Look at the tire information placard, the owner’s manual, or the sidewall
of the tire you are replacing to find this information. If you have any doubt about the correct size to choose,
consult with the tire dealer.
1.5.6. Tire Tread
The tire tread provides the gripping action and action traction that prevent your vehicle from slipping or
sliding, especially when the road is wet or icy. In general, tires are not safe and should be replaced when the
tread is worn down to 1/16 of an inch. Tire have built-in tread wear indicators that let you know when it is time
to replace your tires. These indicators are raised sections spaced intermittently in the bottom of the tread
grooves. When they appear “even” with the outside of the tread with Lincoln’s head upside down and facing
you. If you can see the top of Lincoln’s head, you are ready for new tires.
1.5.7. Tire Balance and Wheel Alignment
To avoid vibration or shaking of the vehicle when a tire rotates, the tire must be properly balanced. This
balance is achieved by positioning weights on the wheel to counterbalance heavy spots on the wheel-and-tire
assembly. A wheel alignment adjusts the angles of the wheels so that they are positioned correctly relative to
the vehicle’s frame. This adjustment maximizes the life of your tires. These adjustments require special
equipment and should be performed by a qualified technician.
1.5.8. Tire Repair
The proper repaid of a punctured tire requires a plug for the hole and a patch for the area inside the tire that
surrounds the puncture hole. Punctures through the tread can be repaired if they are not too large, but punc-
tures to the sidewall should be repaired. Tires must be removed from the rim to be properly inspected before
being plugged and patched.
1.5.9. Tire Fundamentals
Federal Law requires tire manufactures to place standardized information on the sidewall of all tires. This
information identifies and describes the fundamental characteristics of the tire and also provides a tire
identification number for safety standard certification and in case of a recall.
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