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Parts for your 2003 Holden Commodore-Batteries

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Repco 12V LED Load Resistor - RLALR122

Repco 12V LED Load Resistor - RLALR122

$54
Fitment Notes:
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OEX Pilot Light LED Red Flashing 12-24v - ACX2485BL
OEX

OEX Pilot Light LED Red Flashing 12-24v - ACX2485BL

$17
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OEX Globe Holder T-10 Twist Lock Pre Wired - 1 Pce - ACX2594
OEX

OEX Globe Holder T-10 Twist Lock Pre Wired - 1 Pce - ACX2594

$10
Fitment Notes:
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Explore 4WD & Adventure

OEX Semi Sealed Beam Round 178mm Globe Style H4 - LLX78710
OEX

OEX Semi Sealed Beam Round 178mm Globe Style H4 - LLX78710

$43
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Narva Reflector Rectangle Red 28 x 70mm - 2 Pce - 84037BL

Narva Reflector Rectangle Red 28 x 70mm - 2 Pce - 84037BL

$23
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Hella Headlight Adjuster - 15297700

Hella Headlight Adjuster - 15297700

$32
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OEX Pilot Light LED Blue 12v Blade Terminals - ACX2429BL
OEX

OEX Pilot Light LED Blue 12v Blade Terminals - ACX2429BL

$15
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Narva Globe Holder For T-10 Wedge Base 1Pce - 49810

Narva Globe Holder For T-10 Wedge Base 1Pce - 49810

$24
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Narva Sealed Beam Connector H4 - 49894
Clearance

Narva Sealed Beam Connector H4 - 49894

$1
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Repco 24V LED Load Resistor - RLALR242

Repco 24V LED Load Resistor - RLALR242

$54
Fitment Notes:
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Narva Retro Reflector Clear 42mm (2pk) - 83990BL

Narva Retro Reflector Clear 42mm (2pk) - 83990BL

$22
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Narva Pilot Light LED Red 12v Blade Terminals - 62092BL

Narva Pilot Light LED Red 12v Blade Terminals - 62092BL

$20
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Hella 12v LED Pilot Lamp Red - 2721

Hella 12v LED Pilot Lamp Red - 2721

$20
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Wilco Underwater Light - White - LAUW0088
Clearance

Wilco Underwater Light - White - LAUW0088

$5
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HELLA  12V Pilot Light LED Red Screw on Terminals - 2716

HELLA 12V Pilot Light LED Red Screw on Terminals - 2716

$123
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OEX Pilot Light LED Green 12v Blade Terminals - ACX2427BL
OEX

OEX Pilot Light LED Green 12v Blade Terminals - ACX2427BL

$15
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Hella LED Trailer Lamp Kit 12/24v - 2VB980720811

Hella LED Trailer Lamp Kit 12/24v - 2VB980720811

$293
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Hella 12v Pilot Light Incandescent Amber - 2715

Hella 12v Pilot Light Incandescent Amber - 2715

$39
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OEX Led Load Resistor 12/24V - ACX2023
OEX

OEX Led Load Resistor 12/24V - ACX2023

$45
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Narva Pilot Light LED Green 12v Blade Terminals - 62091BL

Narva Pilot Light LED Green 12v Blade Terminals - 62091BL

$17
Fitment Notes:
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Showing 1 - 39 of 194 products

Maintaining and Replacing the Battery of Your 2003 Holden Commodore

The 2003 Holden Commodore, known for its reliability and robust performance, is equipped with a standard automotive battery, critical for starting the engine and powering the electrical systems. Checking and maintaining this component is an essential part of vehicle care that ensures smooth operation and prevents inconvenient breakdowns. Here, we explore the key steps in battery maintenance and replacement for your Holden Commodore.

A healthy car battery is vital, as it provides the necessary juice the starter requires to crank the engine and keeps all electrical components, like lights and the stereo, operational when the engine is off. Over time, batteries lose their capacity and efficiency, especially under adverse weather conditions or due to frequent short trips. Thankfully, a few straightforward steps help extend the life of your battery and maintain your car in top shape.

  1. Regular Inspection

    To start, regular inspection of your battery ensures that it's in good working condition. Check for signs of corrosion, swelling, or leaks around the terminals. Corrosion appears as a white, ashy substance around the battery posts and clamps. Cleaning this off with a battery cleaner or a paste of baking soda and water can help maintain a good connection.

  2. Checking Connections

    Ensure the battery terminals are tight and free from grime. Loose connections can lead to intermittent power loss and might cause starting problems. Use a wrench to carefully tighten them if you notice any wiggle room.

  3. Load Testing

    If you suspect your battery is losing its charge quickly, a load test could be in order. Many automotive shops offer this service, or you could pick up a load tester for a reasonable price and do it yourself. This test checks the battery's ability to hold voltage while under load, which can indicate its health and efficiency.

Should your battery show signs of failure or test poorly, it may be time for replacement. Here's a guideline for replacing the battery in your 2003 Holden Commodore:

  1. Select the Right Battery

    Your Commodore requires a specific type of battery, usually, an automotive battery with the correct cold cranking amps (CCA) for optimal performance. Consult your vehicle manual to identify the correct size and capacity, ensuring compatibility with your vehicle's requirements.

  2. Safety First

    When replacing the battery, safety is paramount. Ensure the engine is turned off, the parking brake is engaged, and remove any metal jewellery. Open the bonnet and identify the battery's location. Most Holden Commodores have it situated near the engine bay.

  3. Remove the Old Battery

    First, disconnect the negative terminal followed by the positive terminal. This mitigates the risk of short-circuiting. Use a wrench to loosen the terminals. After disconnecting, remove any hold-down clamps or brackets securing the battery. Carefully lift the old battery out, keeping it upright to avoid any acid spills.

  4. Install the New Battery

    Position the new battery within the tray, ensuring it's firmly seated. Secure it using the hold-down clamps then connect the positive terminal first followed by the negative terminal. Tighten the clamps with your wrench.

After installation, start your vehicle to ensure the new battery is functioning correctly. Dispose of your old battery responsibly by returning it to a recycling centre or an automotive store that offers disposal services. Batteries are recyclable, and returning them ensures components do not end up in landfills.

Regular battery maintenance and timely replacement significantly enhance the overall reliability of your Holden Commodore. Maintain good electrical health by incorporating these steps into your maintenance routine, and enjoy your trustworthy ride for many years. With just a bit of attention, you'll keep your Commodore purring along with all cylinders firing smoothly.