The Function and Purpose of Reverse Lights in Cars and How to Maintain Their Performance

JAKARTA, JANUARY 2026, The reverse lights typically installed at the rear of the car play an important role, especially in driving safety. This is because this device will function every time the driver shifts into reverse gear, and then these lights will automatically turn on. That is why these lights are required by law, and vehicle owners must comply with certain regulations, such as being mandatory to be white and having a maximum range.

Now, to help Daihatsu friends understand better, let's learn everything about reverse lights in cars. From the requirements to what to do if problems occur.

Function and Purpose of Reverse Lights in Cars

Reverse lights are a lighting system that automatically activates when the reverse gear is engaged. These lights are located at the back of the vehicle and emit white light with a limited range.

The main purpose is to warn other drivers or pedestrians in the surrounding area that a vehicle is reversing, thus giving them a safe distance.

Reverse lights also help drivers see better behind the vehicle, especially in low light conditions. This makes maneuvering easier and allows the driver to see obstacles, inclines, and other vehicles.

Types of Reverse Lights

As technology evolves, not all cars use the same type of reverse lights. Some models have one rear light (usually on the left side), while others have two lights to ensure better visibility.

In addition to their configuration, the reverse lights of some cars also differ in the type of bulb used, including:

1. Halogen

Most commonly used because it is more economical and easy to replace.

2. LED

Longer lifespan, lower consumption, and better illumination.

3. Xenon

Usually used in premium vehicles, but rarer and more expensive.

 Mandatory Color and Range of Reverse Lights

Reverse lights are usually white, this color clearly indicates that the vehicle is reversing, helping other drivers and pedestrians react quickly in time.

Unlike other rear lights such as brake lights or city lights which are red to indicate the position of the car. For Turn Signal Lights, Daihatsu friends should not use white lights as well and should preferably use yellow to enhance visibility during the day. Reverse lights have a very specific function, which is to illuminate the rear area with a clear and short beam of light when the reverse gear is activated. Therefore, using the wrong color for reverse lights can cause traffic chaos.

Meanwhile, the range of these lights is usually 10 meters according to regulations. This distance is sufficient to ensure visibility when parking or reversing at night. Thus, even if Daihatsu friends choose more powerful LED bulbs, the light beam of the reverse lights must still comply with the limits set by traffic regulations.

How to Check if Reverse Lights are Functioning Properly

To check if the reverse lights are functioning normally, Daihatsu friends must first start the engine. Ensure the area behind is clear and the clutch is functioning properly when shifting into reverse gear.

To avoid hassle in ensuring optimal reverse lights, ask someone else to check if the lights are on. If alone, use the rearview mirror to see the reflection of the light from the nearest object behind the car.

What to Do If the Reverse Lights Are Out

Although protected by a lens, reverse lights can also fail due to age, short circuits, or a leaking lens causing the bulb to burn out quickly. If the reverse lights stop functioning, here’s what to do:

1. Check the bulb

The bulb may be burnt out and needs to be replaced.

2. Check the fuse

A blown fuse can prevent the circuit from functioning.

3. Check the reverse switch

The reverse switch is usually located inside the gearbox.

4. Check the wires and connections

Damage or corrosion at the terminals can cause failure.

Tools Needed to Replace Reverse Lights

To replace the reverse lights, Daihatsu friends will need tools to assist in the disassembly and reassembly process as follows:

1. Screwdriver and Socket Wrench
2. Gloves
3. Clean cloth (to avoid touching the bulb with fingers)
4. Compatible new light bulb (check the vehicle's manual)
5. Current tester or multimeter (optional, to check for damage).

Maintenance Summary

Also Read: What Car Lights Should Be Used in the Rain? Here Are the Recommendations!

To ensure whether the reverse lights of your Daihatsu car meet the requirements, the reverse lights must ensure safety and visibility and must comply with legal requirements. That is why keeping these lights functioning well is the responsibility of all drivers.

Therefore, do not hesitate to seek the nearest official Daihatsu workshop if your car experiences damage to the lighting system, especially the reverse lights.