Parts for your 2013 Holden Colorado-Interior bulbs

2013 Holden Colorado Interior Bulbs

Based on factory references like the Holden Colorado RG Owner’s Manual (2012–2016, Interior Lamps), GM Service Information (SI) for the RG platform, and AU/NZ bulb guides from Narva and Philips, the 2013 Holden Colorado is fitted with interior bulbs. Depending on trim and cab style (Single, Space, Crew Cab), it uses small wedge globes for map/dome lights and festoon-style globes for roof and cargo lamps. These are serviceable items and form part of routine upkeep when they fail or get dim.

Interior bulbs handle cabin lighting for entry, map reading, vanity mirrors, the glovebox and, on many utes, the rear cabin or cargo area. In day-to-day use, they make the cab friendlier and safer after dark. From the factory, the Colorado typically runs 12V incandescent globes such as T10/W5W wedges for map/dome and 31 mm festoon types for roof or cargo lamps, though exact fitment can vary by variant. A quick check of the existing globe or the owner’s manual is the best way to confirm.

There’s no strict replacement interval, they’re swapped when they fail, look smoky, or the light output drops. Many owners upgrade to LED for a brighter, whiter light and lower current draw. For the Colorado’s BCM-controlled interior circuits, it’s wise to choose CANbus-friendly LEDs to avoid faint glowing or flicker when off. Warm to neutral white (4000–5000 K) keeps a factory look without being harsh.

1. Switch the interior lamp off and remove the key, allow hot globes to cool.
2. Use a plastic trim tool to gently release the lens without cracking it.
3. Note the globe type and orientation. Avoid touching the glass with bare fingers.
4. Fit the new globe securely, for LEDs, check polarity and function before refitting the lens.
5. If the lamp doesn’t work, re-seat it, try flipping an LED, and check the courtesy/interior fuse in the cabin panel.

• Keep lenses clean, haze cuts light output.
• If moisture appears in a lens, replace the seal or the assembly to protect the new globe.
• Different cab styles and trims can use different globes—verify before buying multiples.

Technical sources consulted: Holden Colorado RG Owner’s Manual (Interior Lamps section, 2012–2016), GM Service Information (RG Colorado), Narva AU/NZ Globe Application Guide, Philips Automotive Bulb Guide, industry fitment data aligned with the Isuzu D‑Max platform cousin.

Popular questions

What bulb sizes fit the Colorado’s interior lights?
Most 2013 RG models use T10/W5W wedge globes for map/dome lamps and 31 mm festoon globes for roof or cargo lamps. Variations exist by trim and cab style, so it’s best to check the existing globe or the owner’s manual before purchasing.

Can I replace the interior bulbs with LEDs?
Yes. Quality CANbus-friendly LEDs work well and reduce power draw while improving brightness. Ensure correct polarity and test before refitting lenses. Aim for a neutral white colour temperature if a factory look is preferred.

Why won’t my interior light turn off?
Check the lamp switch position (often door/on/off), ensure all doors and the tailgate are fully closed, and inspect the courtesy/interior fuse. If the light still stays on or flickers, the BCM or a door switch may need attention—an auto sparky can scan and diagnose.