How To Check Your Car Lights
A regular walk-round check catches failed bulbs before they become a safety or legal problem.
DifficultyEasy
TimeAbout 10 minutes
AreaLights and wipers
What you need
- A helper or a reflective surfaceTo see brake and reversing lights.
Step by step
- Switch on the sidelights and headlightsWalk round the car and check front and rear.
- Check the high beamAnd the front fog lights if fitted.
- Check the indicatorsLeft, right and hazard lights. A fast flash rate often means a bulb is out.
- Check brake lightsAsk a helper or use the reflection in a garage door or shop window.
- Check reversing and number plate lightsSelect reverse with the brake held.Keep the engine off or hold the brake firmly when selecting reverse.
When to go to a workshop
If a light still fails after a new bulb, there may be a fuse, wiring or module fault. LED units are often replaced as a whole.
Questions about How To Check Your Car Lights
Can I be fined for a broken bulb?
In many countries yes, and it can cause a failed inspection.
Should bulbs be changed in pairs?
For headlights it is often recommended, so both sides match in brightness and colour.