When last have you checked your tires? Do you know when they need replacing? To check if your tires need to be replaced, you can inspect the tread depth, the tire label, and the sidewall for any signs of wear or damage. You can also use a tire gauge, a penny, or tread wear indicators to measure the tread depth. If the tread is at or below 2/32nds of an inch, you should replace your tires immediately.