For over four decades, the Holden Commodore has been more than just a car; it’s a piece of Australian automotive soul. Even in 2026, with the final VF models now over a decade old, keeping these legends road-worthy and shining bright is a passion for thousands. One of the most common, yet sometimes confusing, maintenance tasks is replacing a blown bulb. Is it a P21W or a 7443? Does your VF Calais use the same reverse light as a VE?

This guide cuts through the confusion. We’ve compiled a comprehensive, model-specific reference for every bulb in your Commodore, updated for 2026 with the latest LED upgrade options and parts availability insights. Whether you’re a seasoned DIY mechanic or a new owner wanting to understand your car better, this is your ultimate lighting manual.

Understanding your Commodore’s lighting assembly is the first step to easy DIY maintenance.

Why Knowing Your Bulbs Matters in 2026

Gone are the days of walking into a generic auto shop and finding a dedicated “Holden” section. In today’s parts landscape, knowledge is power. Knowing the exact bulb type (like H7 for low beam) allows you to:

• Shop Accurately Online: Cross-reference with global part numbers for the best price and quality, from OEM to premium brands like Philips or Osram.
• Explore Modern Upgrades: The aftermarket for LED and high-performance halogen bulbs has exploded. Knowing your base fitting lets you safely explore brighter, whiter, or more efficient options.
• Perform Quick, Confident Changes: No more guessing. A quick check of this guide before a roadworthy inspection or a night trip can save you time and hassle.
• Preserve Your Pride and Joy: Using the correct bulb ensures proper light pattern, prevents electrical issues, and keeps your Commodore functioning as designed.

The Complete Holden Commodore Bulb Reference Table (VE & VF Focus)

The following table covers the most common Holden Commodore models still on the road in 2026: the VE Series (2006-2013) and the final VF Series (2013-2017). Bulb types are generally consistent across sedans, wagons, and utes (where applicable) within each series.

Step-by-Step: Replacing Key Bulbs (VF Commodore Example)

While each bulb location varies slightly, here’s a general guide for common replacements on a VF, the most recent and widely owned Commodore in 2026.

1. Replacing Low/High Beam (H11/H9) Bulbs

Tools Needed: New H11 (low) or H9 (high) bulb, gloves (skin oils can damage halogen bulbs), flat-head screwdriver (for some clips).

1. Access: Open the bonnet. Locate the back of the headlight assembly. You’ll see three large dust covers: one for low beam (often outer), one for high beam (often inner), and one for the indicator.
2. Remove Cover: Twist the relevant dust cover counter-clockwise and remove it.
3. Disconnect & Remove: Unplug the wiring harness by pressing the clip and pulling. Release the metal wire clip holding the bulb by pushing down and swinging it aside. Gently pull the bulb straight out.
4. Install: Without touching the glass, insert the new bulb, secure it with the clip, reconnect the harness, and replace the dust cover. Test before closing the bonnet.

Taking care not to touch the glass of a halogen bulb is crucial for its longevity.

2. Replacing Tail Light Bulbs (P21/5W 7443)

Tools Needed: New 7443 bulb, trim removal tool or flat-head screwdriver (wrapped in tape to avoid scratches).

1. Access: Open the boot. Locate the plastic trim covers on the side walls directly behind the tail light clusters.
2. Remove Trim: Carefully pry off the trim covers. You’ll now see the back of the tail light assembly with several bulb holders.
3. Remove Holder: Identify the holder for the tail/brake light (usually the largest). Twist it counter-clockwise and pull it out towards you.
4. Replace Bulb: With the holder in hand, pull the old bulb straight out. Push the new bulb in (it only fits one way). Reinsert the holder into the housing, twist clockwise to lock, and replace the trim.

Navigating the 2026 Lighting Upgrade Scene: LED & Beyond

The upgrade path for Commodores has never been clearer. Here’s your 2026 cheat sheet:

• Interior & Parking Lights (W5W/T10, Festoon): The easiest and most cost-effective upgrade. A full LED interior kit (dome, map, boot, licence plate) can be found for under $50 and offers a crisp, modern white light.
• Tail & Reverse Lights (7443, 7440): LED upgrades here are highly visible and have a faster response time (brake lights illuminate quicker). Ensure they are ADR-compliant for brightness and color.
• Headlights (H11, H9): Caution is key. While LED “bulbs” in halogen housings are sold everywhere, many produce poor beam patterns and excessive glare for oncoming traffic. For a legal and effective upgrade, consider high-output halogen bulbs (like Osram Night Breaker Laser) or investing in a complete factory-style LED or HID projector retrofit from a reputable specialist.
• Turn Signals (PY21W): Remember the hyperflash issue. Quality LED kits will include the necessary resistors or decoders.