The bulb type depends on the headlamp configuration in your car. For most 2016 Impalas with halogen headlights, the low beams use H11 bulbs and the high beams use 9005 bulbs. If your Impala has HID projector headlights, the low beams use HID bulbs (the exact bulb code can vary, commonly D1S or D2S), and the high-beam setup can differ by the specific headlamp assembly. Always verify the exact bulb code for your vehicle using the owner’s manual or a VIN-based parts lookup.
Halogen headlights (most common on base trims)
The following bulbs cover the standard halogen headlight configuration you’re likely to encounter on a 2016 Impala with traditional reflectors.
- Low beam: H11
- High beam: 9005 (HB3)
In halogen-equipped models, this pairing is the typical setup for the main headlamps, with fog lights sometimes using a separate bulb type.
HID projector headlights (optional or higher trims such as LTZ)
For Impalas equipped with HID projector headlights, the low-beam system uses HID bulbs inside a projector housing. The exact bulb code can vary by production date and ballast configuration.
- Low beam: HID bulb (bulb codes commonly include D1S or D2S; verify for your vehicle)
- High beam: configuration varies by assembly (could be a separate halogen or HID; confirm with VIN/manual)
Because HID headlamps are more system-specific, it’s important to confirm the exact bulb type for your build before buying replacements.
How to confirm your bulb type
Check the following sources to ensure you buy the correct bulb for your exact car:
- Owner’s manual under the bulb replacement section
- Sticker on the driver’s door jamb listing bulb codes
- GM Parts look-up by VIN or a dealer service portal
If you’re unsure, a quick call to a Chevrolet dealer with your VIN can prevent ordering the wrong bulb and wasting a trip to the store.
Summary
In short, the 2016 Chevy Impala can use either halogen bulbs (H11 low beam, 9005 high beam) or HID bulbs for the low beams (commonly D1S or D2S, depending on the assembly). The high-beam configuration varies with trim and headlamp type. Always verify with the owner’s manual, door-jamb sticker, or VIN-based parts lookup to ensure you purchase the correct bulbs for your exact vehicle.