How can you check for tire tread depth?

Using a tread depth gauge or the coin test is the most accurate way to check for tire tread depth, which is critical for ensuring vehicle safety and performance. A tread depth gauge is a precise tool designed specifically for this purpose, allowing you to measure the depth in millimeters. This measurement helps determine whether the tire has sufficient tread for safe traction, especially in wet or slippery conditions.

The coin test, commonly using a penny or quarter, is a practical method for a quick check. By inserting the coin into the grooves of the tire tread, one can gauge whether the tread is deep enough to provide adequate grip. For example, if the top of Lincoln's head on a penny is visible, the tread is too shallow and may need to be replaced.

Both methods give a clear indication of tire wear, which is essential for maintaining safe driving conditions. Regularly checking tread depth can help prevent accidents caused by hydroplaning or reduced grip during braking.