Buick Regal 2016 Bulb Size
Bulb size chart
This 2016 Buick Regal bulb size guide helps you verify the correct bulb for each lighting position before you buy replacements. Because the Regal could be equipped with different lighting setups, the right bulb depends on where it is used, such as headlights, tail lamps, reverse lights, or interior lamps.
Use this page to match bulb sizes by location on your 2016 Buick Regal, including exterior and interior lighting. It is a practical reference for checking common fitment points like the headlight bulbs, license plate lights, dome lights, and turn signals so you can replace the correct bulb the first time.
Fitment can vary by trim, lighting package, market, and body style, so always confirm whether your Regal uses halogen headlights or HID headlights before ordering. That choice affects several bulbs, including the headlight, parking light, and daytime running light positions. If you are converting to aftermarket LED bulbs, make sure the bulb type, base, and physical clearance match the housing, since some LED replacements may not fit or may trigger warning issues. The safest approach is to compare this guide with the bulb already installed in your vehicle before purchasing.
FAQ
What bulb does the 2016 Buick Regal use for the low and high beam headlights with HID headlights?
For Regal models equipped with HID headlights, the high beam and low beam bulb size is D3S.
What bulb size is used for the halogen headlight setup on the 2016 Buick Regal?
For Regal models with halogen headlights, the high beam and low beam bulb size is 9012.
What is the front turn signal bulb size on a 2016 Buick Regal?
The front turn signal light bulb is 7440A.
What bulb does the rear turn signal use on this model year?
The rear turn signal light bulb is 7440.
What bulb size is used for the back up reverse light?
The back up reverse light bulb is 921.
What are the license plate light bulb sizes for the 2016 Buick Regal?
The license plate light uses 194 or 7441 bulbs.
What bulb fits the trunk or cargo area light?
The trunk or cargo area light uses 194 or 7441 bulbs.
What bulb size is listed for the dome light and map light?
Both the dome light and map light use 2825 or 98 bulbs.
What bulb is used for the vanity mirror light?
The vanity mirror light bulb is 7065.
What bulb size is used for the interior door light and courtesy light?
Both the interior door light and courtesy light use 6411 or 6428 bulbs.
What bulb fits the front side marker light?
The front side marker light bulb is 194NA.
What bulb is used for the rear side marker light?
The rear side marker light bulb is LED, and this page lists it by lighting position rather than a separate replaceable halogen bulb size.
Does the 2016 Buick Regal use different bulbs for parking lights and daytime running lights?
Yes. Regal models with HID headlights use LED parking lights and LED daytime running lights, while models with halogen headlights use 7443 bulbs for both positions.
Are the center high mount stop light, brake light, and tail light bulbs listed as LED?
Yes. The center high mount stop light, brake light, and tail light bulbs are listed as LED on this page.
How should I confirm the correct bulb before buying replacements?
Check your current bulb, confirm whether your Regal has halogen or HID headlights, and match the bulb base and size to the position on the vehicle. This is especially important for trim and package differences.