Learn about wheel alignment on the Certified Service site to help prevent uneven tire wear.



Watch a video and find out why wheel alignment is important.

Why is wheel alignment important?

Proper wheel alignment is key to prolonging the life of your tires. If your vehicle is misaligned, it can cause your tires to wear unevenly, and you may experience handling problems such as pulling or abnormal vibration.

Consider a wheel alignment check if there is unusual tire wear or the vehicle is significantly pulling to one side or the other.


Camber is the tilting of the wheels from the vertical when viewed from the front of the vehicle. When the wheels tilt outward at the top, the camber is positive. When the wheels tilt inward at the top, the camber is negative. The amount of tilt is measured in degrees from the vertical. Camber settings influence the directional control and the tire wear.

How does camber affect wheel alignment?

  • Too much positive camber will result in premature tire wear on the outside of the tire and cause excessive wear on the suspension parts.
  • Too much negative camber will result in premature tire wear on the inside of the tire and cause excessive wear on the suspension parts.
  • Unequal side-to-side camber of 1 degree or more will cause the vehicle to pull or lead to the side with the most positive camber.


Caster is the tilting of the uppermost point of the steering axis either forward or backward, when viewed from the side of the vehicle. A backward tilt is positive and a forward tilt is negative. Caster influences directional control of the steering but does not affect tire wear.

How does caster affect wheel alignment?

  • With too little positive caster, steering may be touchy at high speeds and wheel returnability may be diminished when coming out of a turn.
  • If one wheel has more positive caster than the other, that wheel will pull toward the centre of the vehicle. This condition will cause the vehicle to pull or lead to the side with the least amount of positive caster.

See your Certified Service experts if you experience any of these situations. Check your Owner’s Manual for more information about wheel alignment and tire balance on your specific vehicle.



Toe is a measurement of how much the front and/or rear wheels are turned in or out from a straight-ahead position. When the wheels are turned in, toe is positive (+). When the wheels are turned out, toe is negative (-). The actual amount of toe is normally only a fraction of a degree. The purpose of toe is to ensure that the wheels roll parallel.

How does toe affect wheel alignment?

  • Toe also offsets the small deflections of the wheel support system that occur when the vehicle is rolling forward. In other words, with the vehicle standing still and the wheels set with toe-in, the wheels tend to roll parallel on the road when the vehicle is moving.
  • Improper toe adjustment will cause premature tire wear and cause steering instability.


Camber wheel patterns when tires are equipped incorrectly.

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