These Tire Wear Patterns Can Reveal What’s Wrong With Your Car – Jalopnik

Because the tires connect the vehicle to the road, no matter how powerful, luxurious or safe a car is, it is only as good as the tires it rides on. That’s why tires aren’t just made of rubber; they can provide a window into the health of your car’s suspension and steering. If the car skids, this may indicate worn tires. If the steering wheel feels loose or the car is pulling to one side, it could reveal problems with alignment, suspension, or even braking performance.

These are also telltale signs that your car tires need to be replaced as soon as possible, but even with new tires, the problem will persist if you don’t fix the cause. That’s why tire maintenance and regular checks are so important. If you don’t catch the problems early, they are likely to develop further and you risk not only the life of your tires, but possibly your own safety as well. With that in mind, these tire wear patterns can reveal what’s wrong with your car.

If you look at your tires and notice that they are worn in the center, this could indicate problems with over-inflation. This is because the air pressure affects the contact surface. If your tires are overinflated, they will bulge in the center, meaning the center of the tire will wear out faster due to a smaller overall contact patch. This was also noted in a 2025 study published in Lubricants (MDPI), which stated: “Experimental observations show that the increased inflation pressure leads to a proportional decrease in the contact area.”

An over-inflated tire can have other consequences besides wearing out the center of the tire. Inflating to your tire’s PSI number is a terrible idea as it can shorten the life of the tire and also reduce overall safety, stability and driving comfort. To avoid this and save your tires in time, always make sure they are inflated to the correct PSI level, according to the manufacturer’s recommendations. If you don’t know where to find it, look in the car’s owner’s manual, on the sticker on the door pillar or on the inside of the fuel filler flap.

Overinflating your tires will reduce the contact patch, but underinflating them will increase it. While that may seem like a trick to increase traction (and in some off-road situations it is), it can also cause more wear and tear on your shoulder tires. Underinflated tires can also reduce your fuel efficiency, because the bigger the spot, the higher the rolling resistance – one of the ways tire pressure affects gas mileage.

According to a National Highway Traffic Safety Administration (NHTSA) report entitled “Tyre-Related Factors in the Pre-Crash Phase” (DOT HS 811 617), “when tires are underinflated by 25% or more, they are approximately three times more likely to be cited as critical events in the pre-crash phase compared to properly inflated tires.”

It is worth distinguishing between underinflation and other factors that can also cause or contribute to tire wear. These include aggressive cornering where more weight is placed on the outside edge. Problems with wheel alignment or even worn suspension components (such as a broken sway bar or issues with the control arm bushings) can also cause this.

Tires that are worn concave or scalloped are warning signs that it is time to have your tires balanced. According to Bridgestone“Tire cupping can look like someone took an ice cream scoop and scooped away some of the tread every two to three inches around the circumference.” In other words, cupping occurs when certain areas of the tire experience more pressure, causing those areas to wear out faster.

This is usually caused by tire misalignment, worn suspension components, or problems with low-quality tires. Specifically, your car’s shocks and struts determine how your car rides over bumps. As time goes by, these can wear out and bounce over undulations, causing the tire to cup.

Tire misalignments that cause cupping include improper toe and camber angles, as well as front-to-rear wheel misalignment, which causes the wheels to not remain parallel to each other and perpendicular to the road. If your tires are of lower quality, they may also be more susceptible to cupping. Same story with unbalanced tires. With that in mind, it is important to inspect the vehicle, determine the cause, and replace the tires.

If the edges of your tire blocks develop a sawtooth-like pattern, where one side of the tire block is smoother while the other side is sharp, it usually means your tires are wearing in a sprung pattern. The most common cause of suspension tire wear is improper toe alignment, which means the two opposing tires rub unevenly against the road surface.

This is the cause of the smooth pattern on one side, but sharp on the other. In general, improper alignment can damage a car’s toe, camber and caster, and any of these can cause tire wear. Problems with wheel bearings and ball joints, unbalanced tires and pressure can also contribute. If you’re lucky enough to notice the pattern early on, proper alignment will likely fix it.

If the tires are severely worn on one side, you will likely need to make any necessary suspension and alignment repairs and replace the tires. Although you can align your car’s tires yourself, this is tricky and requires tools such as jack stands, string, a ruler, and possibly a tool to accurately measure distances. For this reason, and because a good alignment requires precision, it is better to take your car to a professional.

Tire wear on one side is similar to the feathered (toe wear) pattern mentioned earlier, but the difference from single-sided tire wear is that it is mainly caused by camber problems. To tell the difference between camber and toe wear, look at the tread: camber wear affects only one shoulder, while toe wear creates a spring-like pattern across the surface of the tread blocks. These can also be caused by impacts to the wheel structure, modifications, poor installation or by ball joint, spring and alignment problems.

Since camber essentially means your tires are at an uneven angle to the road, it can also lead to handling and traction problems. To fix this you will need to identify the culprit and perform an alignment. Make sure you do this right away as skipping an alignment is one of the small mistakes that can cause major damage to your wheels. Cars with independent rear suspension are prone to internal camber wear, meaning negative camber can track out the rear tire and cause it to wear out more quickly.