Buick Regal 2015 Bulb Size
Bulb size chart
This 2015 Buick Regal bulb size guide helps you verify the correct replacement bulb by lighting position, so you can match the right part before you buy. Whether you are replacing an exterior lamp, an interior light, or a headlight bulb, checking the bulb chart by location is the easiest way to avoid fitment mistakes.
The 2015 Buick Regal uses different bulb types depending on the headlight setup and the specific lamp position. Some trims use HID headlights with D3S bulbs, while others use halogen headlights with 9012 bulbs. Rear and interior lamps also vary, so this page is designed to help you identify the correct bulb size for each spot on the car.
Fitment can change with trim, lighting package, market, and body style, so always compare this guide with the bulb already installed in your vehicle. The 2015 Regal may use LED lighting in several exterior positions, while some halogen-equipped models use different bulb numbers for parking lights and daytime running lights. If you are considering an aftermarket LED conversion, make sure the bulb matches the socket, polarity, and available space inside the housing. Before ordering, it is smart to remove the old bulb and confirm the printed number on the base, especially for items like the license plate light, interior lights, and headlight bulbs where small differences matter.
FAQ
What headlight bulb does a 2015 Buick Regal use with HID headlights?
For 2015 Buick Regal models equipped with HID headlights, the high beam and low beam bulb size is D3S.
What headlight bulb does a 2015 Buick Regal use with halogen headlights?
For 2015 Buick Regal models equipped with halogen headlights, the high beam and low beam bulb size is 9012.
What bulb is used for the front turn signal on a 2015 Buick Regal?
The front turn signal light bulb size listed for the 2015 Buick Regal is 7440A.
What bulb is used for the rear turn signal on a 2015 Buick Regal?
The rear turn signal light bulb size listed for the 2015 Buick Regal is 7440.
What bulb fits the back up reverse light on this Regal?
The back up reverse light bulb size for the 2015 Buick Regal is 921.
What bulb is used for the license plate light?
The license plate light bulb sizes listed for the 2015 Buick Regal are 194 and 7441.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb sizes listed for the 2015 Buick Regal are 194 and 7441.
What bulb size is used for the dome light and map light?
The dome light bulb and map light bulb sizes listed for the 2015 Buick Regal are 2825 and 98.
What bulb fits the vanity mirror light?
The vanity mirror light bulb size listed for the 2015 Buick Regal is 7065.
Do parking lights and daytime running lights use the same bulb on every 2015 Regal?
No. On HID headlight models, the parking light and daytime running light bulb size is LED. On halogen headlight models, both the parking light and daytime running light bulb size is 7443.
What bulb is used for the side marker lights?
The front side marker light bulb size listed for the 2015 Buick Regal is 194NA, and the rear side marker light bulb is LED.
Are the brake lights and center high mount stop light LED on the 2015 Buick Regal?
Yes. The center high mount stop light bulb, brake light bulb, and tail light bulb are listed as LED for this vehicle.
Can trim level affect the bulb sizes on a 2015 Buick Regal?
Yes. Trim, lighting package, market, and body style can change the bulb setup, especially for headlights and exterior lighting.
Should I check the installed bulb before ordering replacements?
Yes. Checking the installed bulb is the best way to confirm fitment, especially if your Regal has been modified or uses a different lighting package.