Car Sidelights Explained and How to Use Them Correctly
April 9, 2025
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📌 Key Takeaways
Sidelights (also called parking lights) are the small, dim lights in the corners of your car.
Highway Code Rule 249 requires you to leave them on when parking on any road with a speed limit above 30 mph.
Ignoring this rule can result in a fine of £35–£75 under the Road Vehicles Lighting Regulations 1989.
On 30 mph roads, sidelights aren’t needed provided you park close to the kerb, at least 10 metres from a junction, facing the flow of traffic.
They won’t drain a healthy battery overnight but don’t leave your headlights on, as that’s both illegal and battery-killing.
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Sidelights (or parking lights) are the small, dim lights found on the front corners of a car, usually built into the headlight area. The main purpose of these lights is to increase visibility in low light conditions specifically between sunset and sunrise.
Here’s what car sidelights do:
Front Sidelights: Usually white or amber, these lights are located near the vehicle’s headlights. They help other drivers spot your car, especially when it’s parked or in situations with poor visibility (e.g., in foggy or low-light conditions). They are not as bright as headlights, so they don’t illuminate the road ahead.
Rear Sidelights: Red in color, they function similarly to the front sidelights, making the car more visible to other drivers from behind.
At Goodluck driving school we get a lot of questions about car sidelights. Let’s clear things up in a few quick steps.
I see questions about sidelights all the time. Let’s clear things up in a few quick steps.
What Are Car Sidelights?
Car sidelights are also called parking lights
Sit in the front corners of your car
Less bright than headlights
Help other drivers see you when it’s not dark enough for full beams
How Do You Turn Them On?
Most modern cars use the same switch as your headlights
Look for a stalk on the steering wheel or a dial on the dashboard
The sidelights car symbol often shows two semi-circles facing opposite directions