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Parts for your 2018 Holden Commodore-Headlights

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OEX Relay Base Suits 4 or 5 Pin Relays - ACX1997BL
OEX

OEX Relay Base Suits 4 or 5 Pin Relays - ACX1997BL

$10
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Narva Electronic LED Flasher 12V 3 Pin - 68245BL

Narva Electronic LED Flasher 12V 3 Pin - 68245BL

$63
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Explore 4WD & Adventure

OEX Headlight Relay 12V 30A - ACX2034
OEX

OEX Headlight Relay 12V 30A - ACX2034

$139
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OEX Starter Motor Slave Solenoid 12V - ACX3342
OEX

OEX Starter Motor Slave Solenoid 12V - ACX3342

$63
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Narva Relay - Unfused High Capacity - 72386BL

Narva Relay - Unfused High Capacity - 72386BL

$20
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OEX Flasher Relay, 3 Pin 12V - ACX1954BL
OEX

OEX Flasher Relay, 3 Pin 12V - ACX1954BL

$22
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OEX Glow Plug Timer 12V Universal - ACX4870
OEX

OEX Glow Plug Timer 12V Universal - ACX4870

$153
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Narva 12V Relay 5 Pin 30/40A With Resistor - 68044BL

Narva 12V Relay 5 Pin 30/40A With Resistor - 68044BL

$36
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Narva 12V HD Relay 200A - 68022

Narva 12V HD Relay 200A - 68022

$136
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OEX Mini Relay 12V Normally Open 30A - ACX1990
OEX

OEX Mini Relay 12V Normally Open 30A - ACX1990

$46
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Narva 12V Relay 4 Pin 40A - 68000BL

Narva 12V Relay 4 Pin 40A - 68000BL

$31
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OEX Battery Relay 12V 100A - ACX2030
OEX

OEX Battery Relay 12V 100A - ACX2030

$90
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OEX Turbo Timer 12V Universal - ACX4851
OEX

OEX Turbo Timer 12V Universal - ACX4851

$194
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OEX Continuous Duty Solenoid 12V 80A Normally Open - ACX3302
OEX

OEX Continuous Duty Solenoid 12V 80A Normally Open - ACX3302

$97
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Narva 12V Relay 5 Pin 30A - 68024BL

Narva 12V Relay 5 Pin 30A - 68024BL

$32
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Narva 12v Relay 4 Pin 20A - 68062BL

Narva 12v Relay 4 Pin 20A - 68062BL

$32
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Capital Glow Plug Timer 12/24V Afterglow - GPT1224

Capital Glow Plug Timer 12/24V Afterglow - GPT1224

$205
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Narva 12V Relay 4 Pin 40A - 68004BL

Narva 12V Relay 4 Pin 40A - 68004BL

$31
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Narva Voltage Sensitive Relay 12V/140A - 61092BL

Narva Voltage Sensitive Relay 12V/140A - 61092BL

$148
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Narva Relay 12V 30A 4 Pin With 30A Fuse - 68060

Narva Relay 12V 30A 4 Pin With 30A Fuse - 68060

$42
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Showing 1 - 39 of 187 products

Understanding Headlights on the 2018 Holden Commodore

Headlights are a fundamental part of any modern vehicle, and the 2018 Holden Commodore is no exception. This iconic Australian car relies heavily on its headlights not just for legality but for safety and functionality. When driving at night or through dimly lit conditions, having reliable headlights is crucial for visibility, both for the driver and other road users. The 2018 Holden Commodore comes equipped with a range of headlight technologies that enhance driving experience and road safety, so it's well worth understanding their purpose and how best to maintain or replace them.

Headlights serve the primary role of illuminating the road ahead during periods of low visibility. This allows the driver to see obstacles, pedestrians, road signs, and other vehicles in time to react safely. On the 2018 Holden Commodore, the headlights are designed to perform optimally in different driving conditions, which means they have both low beam and high beam settings.

The low beam is what drivers use most often for city or suburban driving. This beam lights up the road directly ahead without blinding oncoming traffic. The high beam is perfect for open roads or rural areas with little to no street lighting. When switched on, high beams cast a stronger, more focused light over a longer distance, but it's important to switch back to low beam when other vehicles approach to avoid dazzling other drivers.

The 2018 Holden Commodore typically features halogen or LED headlights depending on the trim level. While older models primarily utilised halogen bulbs, many Commodores from 2018 have upgraded to LEDs in at least the higher-end variants. LED headlights provide brighter, whiter light, consume less power, and have a longer life span than halogen bulbs, although they can be costlier to replace.

Because headlights are so vital to safe driving, regular checks and maintenance are essential. Many drivers overlook their headlights until they fail or become noticeably dim, which can be risky. It is recommended that the headlights on a 2018 Holden Commodore be inspected during every service, or at least every few months if you drive regularly at night.

  • Check the headlight lenses for cracks, cloudiness, or moisture build-up. These issues can reduce the effectiveness of the lights.
  • Clean the lenses regularly with appropriate products to keep the surface clear and maximally reflective.
  • Test that both low and high beams are functioning correctly. A simple way is to turn them on in a dark environment and visually inspect both lights for brightness and proper aiming.
  • Replace bulbs promptly if one has blown or is noticeably dimmer than the other, as uneven lighting can be distracting and unsafe.
  • Consider upgrading to LED bulbs if the current setup is halogen and the vehicle supports it, for both improved visibility and longevity.

Replacing a headlight bulb on the 2018 Holden Commodore is generally a straightforward process but might require referring to the owner's manual or service guide depending on the model's specific lighting setup. Typically, the headlight assembly can be accessed from under the bonnet by removing a few screws or clips. It's important to wear gloves or handle new bulbs carefully to avoid oils from your skin shortening the bulb's life.

For those not comfortable with doing it themselves, many automotive shops will quickly replace bulbs and can also help with diagnosing any electrical issues affecting the headlights. Additionally, if adjustments are needed to the beam alignment, qualified mechanics will have the proper tools to ensure the lights are aimed correctly, which is vital to avoid blinding other drivers or losing sight distance on the road.

Aside from the bulbs themselves, headlight systems on the 2018 Holden Commodore can include features such as automatic dusk sensing and daytime running lights (DRLs). Dusk sensors activate the headlights as natural light fades, providing convenience and ensuring the car is visible without the driver having to remember to switch the lights on. DRLs are designed to increase vehicle visibility during the day and are usually integrated within or near the headlight assembly.

Neglecting headlights can lead to legal trouble too. Driving without properly functioning headlights, especially at night or in poor weather conditions, can incur fines or demerit points in Australia. More importantly, it jeopardises the safety of the driver, passengers, and everyone else on the road. Keeping the 2018 Holden Commodore's headlights in good working order is a simple yet critical aspect of vehicle maintenance.

In essence, headlights are not just a mandatory vehicle feature but a key safety device. For the 2018 Holden Commodore, ensuring they are clean, aligned, functional, and using the right type of bulb can make a huge difference in driving confidence and security. Whether it's a quick visual check during your regular car wash or a professional assessment during servicing, taking care of the headlights helps keep everyone safer on the road.