Vehicles in traditional systems may experience one of two tires on an axle to slip and spin without traction while the other tire does not move. In systems using anti-slip control, the power is distributed between the tires proportional to how each..

Tire Dictionary
Air Pressure

Check the pressure in your tires at a minimum of once per month and before long trips when your tires are cool. Your tires can be considered cool after the vehicle has been stopped for at least 3 hours and driven less than one mile. Adjust to the vehicle manufacturer's specified pressure while tires are cold. Never bleed or reduce air pressure when tires are hot. It is normal for pressure to build up as a result of driving. Use an accurate tire gauge to check pressure and maintain it at the level recommended by the vehicle manufacturer. Keep your tire within the manufacturer's specified pressure range. Ignoring this recommendation may result in unexpected loss of vehicle control or accidents.

Alignment of Vehicle

If you notice that your vehicle pulls to the left or right of the road while driving with the wheel in the 12 o' clock position, you may need a wheel alignment. A wheel alignment places all four wheels of the vehicle parallel, or aligned, to one another. The aligned tires are also adjusted to be perpendicular with the ground. Properly aligned wheels help with ease of steering and will distribute general wear on your tires evenly.

All Season Tires

All season tires are tires designed to be used throughout the year. These tires are designed specifically to handle mud and snow conditions. To spot an all season tire, look for the marking "MS", "M/S", "M+S", or "M&S" on the tire's sidewall. The Rubber Manufacturer's Association (RMA) defines a standard criteria for all season tires. In essence, the tire must have several large gaps over the entire length of the tread, with the gap space being at least 25% of the tread surface. The exact specification, as taken from the RMA Snow Tire Definitions for Passenger and Light Truck (LT) Tires, is as follows:

1. New tire treads shall have multiple pockets or slots in at least one tread edge that meet the following dimensional requirements based on mold dimensions:
a. Extend toward the tread center at least 1/2 inch from the footprint edge, measured perpendicularly to the tread centerline.
b. A minimum cross-sectional width of 1/16 inch.
c. Edges of pockets or slots at angles between 35 and 90 degrees from the direction of travel.

2. The new tire tread contact surface void area will be a minimum of 25 percent based on mold dimensions.

General mud and snow all season tires are not required to be industry tested. For this reason, the "Severe Snow Use" tire indicator symbol is used for all season tires that have passed a RMA specification testing standard.