In most Buick models, headlights switch on via a control on the left side of the steering column or dash. The quickest route is to set the headlight control to Auto for automatic operation, or to On to keep them lit manually; you can also flash high beams by pulling the stalk toward you.
Where the Controls Are and How They Work
Buick headlight controls generally come in two common formats. The exact layout varies by model and year, so this guide covers the typical setups you’ll encounter on most Buicks today.
- Dash-mounted rotary knob near the left side of the steering wheel, with positions Off, Parking, Auto, and On. Turn to Auto for automatic headlights, or to On to keep them illuminated manually.
- Steering-column stalk on the left side. Rotate the end of the stalk to the headlight symbol to turn the headlights on; pull toward you to flash high beams, and push away to switch them off.
- Some trims add a separate button or ring for fog lights that works in conjunction with the main headlight control.
Daytime Running Lights (DRL) are standard on many Buicks and may stay on regardless of the main headlight setting; ensure the main headlights are in the desired mode if you need full illumination at night.
Control Configurations by Model
Dash-control (common on newer Buicks)
On many modern Buicks, the control is a round knob on the dash left of the steering wheel. You’ll see icons for Off, Parking, Auto, and On. Selecting Auto lets the car switch headlights on or off based on ambient light.
Stalk-control (older or specific trims)
Some older models or certain trims use a steering-column stalk. The outer end acts as the headlight control: rotate to the headlight symbol to activate, and use the stalk pull/push to flash high beams or to dim/bloom depending on the action.
If fog lights are present, a separate button or ring may be used to toggle them when the headlights are on.
Step-by-Step Quick Start
Use this quick sequence to turn on your Buick’s headlights in most situations.
- Locate the headlight control—dash knob or steering-column stalk.
- Set to Auto for automatic headlights, or On for manual operation.
- If needed, test by moving into a darker area to confirm the lights engage.
- To flash high beams, pull the stalk toward you; release to return to normal operation.
Additional notes: If your headlights don’t come on in Auto, check the ambient light sensor, fuses, or consult the owner’s manual for model-specific instructions.
Summary
Most Buicks use either a dash-mounted knob or a left-side stalk to control headlights. Auto mode provides automatic activation based on light levels, while On keeps lights on manually. High beams are flashed with a pull of the stalk, and fog lights may have their own toggle. If you encounter trouble, refer to your vehicle’s manual or contact a Buick dealer for model-specific guidance.