The tires on your car take a beating every time you drive. That’s why it’s so important to replace them when they start to show signs of wear.
Shallow Tread Depths 
Tread is an important part of tires because it grips the road surface to help you drive and also channels water out from under your tires. Without enough tread, your vehicle can lose traction and become difficult to control in rainy or snowy weather. Shallow tire treads can also cause your car to hydroplane on wet roads. This happens when the tires’ grooves are too shallow to effectively move water away from the contact patch, which can lead to loss of traction and increased risk of an accident. If you have a new set of tires, you should check their tread depth to ensure they meet minimum legal requirements for your province. Most passenger, light truck and medium truck tires have wear bars (also called tread wear indicators) spaced evenly throughout the grooves to tell you the tire’s minimum tread depth.
Irregular Wear
Irregular tire wear is a warning sign that you need to take your vehicle into a repair shop to ensure it is safe to drive. Understanding the signs of uneven tire wear and how they are caused will help you spot potential issues before they become dangerous. For example, if you notice that the inside or outside shoulder of your tread is wearing significantly faster than the rest of the tread, you could be suffering from camber wear. This wear pattern is a sign that your wheel alignment is off, which requires a professional to correct.
Cracked Sidewalls
Tires are designed to protect your car from various elements. This includes the sidewall, which is a protective layer that helps minimize damage to the casing of the tire. Aging tires will develop cracks in their sidewalls due to the natural degradation of rubber. As the polymers in the rubber lose their flexibility, they break down and become brittle. If you notice that your tires are starting to show signs of sidewall cracking, it is time to replace them. This will ensure that your tires are safe for the road and will also give you peace of mind.
Vibrating 
Aside from slipping on wet roads, worn-out tires can also cause the steering wheel to shake. The vibration is a warning sign that it’s time for a tire replacement. And while these vibrations may not be noticeable, they can still be dangerous, especially if you aren’t paying attention. With that being said, if you do suddenly notice the steering wheel shaking, it’s important to take your vehicle to a mechanic as soon as possible.