The simplest answer: for most 2015 Traverse models with halogen headlights, use H11 for the low beams and 9005 for the high beams; fog lights are typically H11. Some higher-trim or aftermarket setups use HID headlights, which use different bulb types. Always confirm with your owner's manual or by checking the bulb markings on your current headlight assembly.
Halogen headlights (most 2015 Traverses)
If your Traverse is equipped with traditional halogen projector headlights, these are the typical bulb sizes you’ll encounter. Use the sizes below to replace in kind and maintain proper lighting performance. When in doubt, verify with the label on the headlight housing or the owner’s manual.
- Low beam bulb: H11
- High beam bulb: 9005 (HB3)
- Fog light bulb: commonly H11, though some trims may use a different fog bulb such as H16
In practice, you’ll want to match the exact bulb type to your specific trim and build date. Replacing bulbs in pairs helps maintain uniform light output and color.
HID headlights (available on higher trims or as an option)
Some 2015 Traverse models use HID projectors instead of halogen. If your vehicle has HID headlights, the low-beam bulbs are typically HID types (such as D1S, D2S, or D3S, depending on the ballast system), and the high beam is often a separate bulb (usually a halogen 9005) or a dedicated HID configuration depending on the exact build. Always verify using the vehicle’s documentation or by inspecting the existing ballast/bulb markings.
- Low beam HID bulb: D1S or D2S or D3S (depends on ballast configuration)
- High beam: usually a separate bulb (often 9005) on many HID setups
Because HID systems differ by production batch and options, it’s important to confirm the exact bulb type for your VIN before ordering replacements.
How to confirm your exact bulb type
Use these quick checks to ensure you buy the correct bulb the first time. The following steps help you identify the exact bulb type for your vehicle configuration.
- Consult the owner’s manual or the vehicle’s headlight section for the bulb specification.
- Inspect the current bulb or the label on the headlight housing (bulb type is often printed on the base).
- Check the driver’s door jamb or under-hood service label, which sometimes lists bulb sizes for headlamps and fog lamps.
- Verify with the GM parts catalog or a dealership using your VIN if you’re unsure; order by VIN to ensure exact fitment.
- Consult a professional if you’re uncertain about HID ballast types or high/low-beam configuration.
Accurate identification helps ensure correct wattage, color temperature, and electrical compatibility with your car’s lighting system.
Summary
For a 2015 Chevy Traverse with halogen headlights, plan on H11 for low beams and 9005 for high beams, with fog lights typically using H11 (though some trims use H16). If your vehicle has HID headlights, the low-beam bulbs are HID (D1S/D2S/D3S, depending on ballast), and the high beams may be separate halogen bulbs or part of the HID setup. Always confirm using the owner’s manual, the bulb markings on the current bulb, or a dealer to ensure you purchase the correct replacement.