The short answer: low-beam headlights use H11 bulbs, high-beam headlights use 9005 (HB3), and fog lights (if equipped) typically use H11 as well.
Context and details: The 2014 Chevy Sonic generally follows a common GM lighting layout, but variations can occur by trim level or optional lighting packages. To avoid mistakes, always verify with the owner’s manual or by inspecting the existing bulbs in your vehicle before purchasing replacements.
Bulb types by function
The following reflects common factory configurations for most 2014 Sonic models. Use this as a guide, but confirm with your manual or a parts specialist for your exact trim.
- Low-beam headlights: H11
- High-beam headlights: 9005 (HB3)
- Front fog lights (if equipped): H11
The above list outlines the most typical configuration. If your Sonic has a different headlight assembly or aftermarket components, bulb types may vary. Always verify compatibility before purchasing replacement bulbs.
What to check if the bulb doesn’t fit
If you’re unsure about bulb compatibility, use these steps to verify without guesswork.
- Consult the owner’s manual or a Chevrolet service bulletin for the exact bulb specification by VIN or trim.
- Inspect the existing bulb: remove the dust cover and note the base type stamped on the bulb.
- Bring the old bulb or headlamp housing to an auto parts store to confirm compatibility.
Safety note: Ensure the headlights are off and the battery is disconnect-safe when handling bulbs to avoid electrical shock or short circuits. If you’re not comfortable with the replacement, a professional installation is recommended.
Summary
For most 2014 Chevy Sonics, the standard configuration uses H11 for low beams, 9005 for high beams, and H11 for fog lights when equipped. Always verify with the manual or parts professional, as there can be trim- or region-specific variations.
Additional context: If upgrading to brighter aftermarket bulbs, ensure compatibility with your housing and local regulations to maintain safe and legal operation on the road.