Posted on 10/31/2025
Your speedometer is one of those car parts you likely glance at without thinking. Whether you're checking your speed on the highway or slowing down in a school zone, it's a key part of safe driving. So when it stops working or starts acting strange, it can be both confusing and dangerous. A non-functioning speedometer means you’re driving blind when it comes to how fast you’re going, and that opens the door to speeding tickets, unsafe driving, or even vehicle control issues. Let’s look at some of the most common reasons your speedometer may stop working and how to get it fixed. How the Speedometer Works In modern vehicles, the speedometer relies on an electronic signal from a speed sensor attached to the transmission or wheel hub. This sensor tracks how fast your wheels are turning and sends that data to the vehicle's computer. From there, the information is displayed on your dashboard. Older vehicles may use a mechanical setup, where ... read more