Fuses protect your car’s electrical circuits from damage by breaking the connection when too much current flows. If a fuse blows, the component it powers — such as lights, radio, or windows — will stop working. Replacing a blown fuse restores the function of that system and keeps your vehicle’s electrics safe.

What is a fuse replacement?

This service involves locating the blown fuse in the fuse box and replacing it with a new one of the correct amperage rating. The mechanic will also check for any underlying electrical faults that may have caused the fuse to blow.

Why do you need a fuse replacement?

A blown fuse means an important electrical system in your car will not function, such as headlights, wipers, or safety features. While replacing the fuse is simple, identifying and fixing the root cause prevents repeat failures.

Common signs you need a fuse replacement

• One or more electrical components stop working suddenly
• No power to accessories like the radio, windows, or charging ports
• Lights (interior or exterior) fail without warning
• A burning smell or visible damage around the fuse box

What happens during a fuse replacement?

A mechanic will:

1. Locate and inspect the fuse box
2. Identify the blown or damaged fuse
3. Replace it with a new fuse of the correct rating
4. Inspect the electrical circuit for shorts or overloads
5. Test the affected component to ensure it works properly

How much does a fuse replacement cost?

Fuse replacement is usually inexpensive, typically costing $50–$120. If the issue is due to a deeper electrical fault, diagnostic and repair costs may be higher.

Is it unsafe to drive with a blown fuse?

It depends on which system the fuse protects. A blown fuse for headlights, wipers, or safety systems can make driving unsafe, especially in poor conditions. Replacing the fuse promptly ensures all systems work as intended.