Uneven tyre wear, a steering wheel that sits off-centre, or a car that drifts to one side are classic signs that the wheels may no longer be properly aligned. On roads full of potholes and rough surfaces these problems appear regularly. A full professional alignment uses specialised equipment and remains the most accurate solution, yet a few simple checks at home can confirm whether the visit is necessary and help you describe the symptoms clearly to the technician.
Begin with the tyres themselves. Park the car on level ground and examine the tread across the full width of each tyre. Wear that is noticeably heavier on the inner edge often points to excessive negative camber or incorrect toe. Heavier wear on the outer edge suggests positive camber or toe problems. A feathered pattern, where the tread blocks feel smooth in one direction and sharp in the other when you run your hand across them, is a strong indicator of incorrect toe. Comparing the left and right tyres on the same axle also reveals differences that alignment issues commonly produce. These visual clues cost nothing and already give useful information.
Next, check the steering wheel position. Drive on a straight, level road at a moderate speed and note whether the wheel sits centred when the car is travelling straight. An off-centre steering wheel that still allows the car to go straight usually means the toe has been disturbed, often after a suspension or steering component was replaced or after a solid impact. If the wheel is centred but the car still pulls, the problem may lie more with camber, tyre pressures, or a dragging brake.A simple road test adds further clarity. On a quiet, straight stretch of road with little camber, briefly let go of the steering wheel (while remaining ready to correct) and observe whether the car continues straight or drifts left or right. Consistent drift in one direction, once tyre pressures have been equalised and the road surface ruled out, strengthens the case for an alignment check. Perform this test only where it is safe and legal to do so.
A basic toe measurement can be done with a tape measure. Park on level ground with the steering wheel centred and the tyres pointing straight ahead. Measure the distance between the front edges of the front tyres at roughly hub height, then measure the distance between the rear edges of the same tyres at the same height. On most passenger cars a small amount of toe-in is normal, meaning the front measurement is slightly smaller than the rear. A difference of more than a few millimetres outside the typical range suggests the toe needs attention. The same method can be applied to the rear wheels on vehicles where rear toe is adjustable. This check is approximate and does not replace professional equipment, but large discrepancies are easy to spot.
Camber is harder to measure precisely without tools, yet a rough visual or spirit-level check still helps. Standing in front of the car, look at whether the tops of the front wheels lean inward or outward relative to the bottoms. A pronounced lean is visible to the eye. Placing a long straight edge or spirit level vertically against the wheel (avoiding the tyre bulge) can show whether the wheel is roughly vertical or tilted. Significant deviation from vertical, especially if it differs from side to side, is worth noting for the mechanic.
Before any of these checks, confirm that tyre pressures are correct and equal across each axle. Incorrect pressures produce many of the same symptoms as poor alignment and can mislead diagnosis. Also look for obvious mechanical problems such as a bent wheel, damaged control arm, or loose steering component. These issues must be corrected before an alignment will hold.These home checks do not allow precise adjustment of camber or caster on most modern cars, and they cannot match the accuracy of a laser or camera alignment rack.
Their value lies in confirming that a problem exists, identifying which end of the car is affected, and giving the technician a clearer starting point. If tyre wear is uneven, the steering wheel sits off-centre, or the car pulls consistently, a professional alignment is the logical next step. Performing the simple inspections first avoids unnecessary visits and helps ensure the eventual alignment addresses the real issue rather than a temporary symptom.