Buick Regal 2012 Bulb Size
Bulb size chart
Looking for the right bulbs for your 2012 Buick Regal? This page is designed to help you verify bulb sizes by lighting position, so you can match the correct replacement to the exact lamp on your car. Because the Regal could be equipped with different headlight and lighting setups, checking the position first is the best way to avoid buying the wrong part.
The 2012 Buick Regal uses a mix of halogen, HID, and interior bulbs depending on trim and package. On this page you can quickly compare the bulb size for the low beam, high beam, turn signals, parking lights, brake lights, reverse lights, license plate lights, and cabin lights. That makes it easier to replace one bulb or plan a full lighting refresh with confidence.
Fitment can vary by market, trim, and body style, so always confirm whether your Regal has halogen headlights or HID headlights before ordering front lighting parts. The front turn signal and parking light bulb sizes differ between those setups, and the daytime running light may use either H11 LED or H16 LED depending on the configuration. If you are switching to aftermarket LED bulbs or using a conversion kit, check physical fit, polarity, and any required resistors or adapters before installation. It is also smart to compare the bulb you remove from the car with the size listed here before you buy, especially for interior lamps and exterior signal bulbs where small differences can matter.
FAQ
What bulb does the 2012 Buick Regal use for the low beam headlight?
The listed low beam headlight bulb for the 2012 Buick Regal is H11.
What is the high beam bulb on the 2012 Buick Regal?
The available bulb chart lists D1S for the high beam and low beam headlight setup on some versions of the 2012 Buick Regal.
Which front turn signal bulb fits a 2012 Buick Regal with halogen headlights?
For halogen headlights, the front turn signal bulb is 4157NA.
Which front parking light bulb fits a 2012 Buick Regal with halogen headlights?
For halogen headlights, the front parking light bulb is also 4157NA.
Which front turn signal bulb fits a 2012 Buick Regal with HID headlights?
For HID headlights, the front turn signal bulb is 3457A.
Which front parking light bulb fits a 2012 Buick Regal with HID headlights?
For HID headlights, the front parking light bulb is 3457A.
What bulb is used for the daytime running light on the 2012 Buick Regal?
The daytime running light bulb is listed as H11 LED or H16 LED, depending on the vehicle configuration.
What bulb size is used for the brake light and tail light?
Both the brake light and tail light use 3157R on the 2012 Buick Regal.
What bulb fits the rear turn signal and reverse light?
The rear turn signal bulb is 3157, and the back up reverse light bulb is also 3157.
What bulb is used for 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 3157A.
What bulb fits the license plate lights on a 2012 Buick Regal?
The license plate light bulb is listed as 2825 or 98.
What bulb size is used for the dome light and map light?
Both the dome light and map light use 2825 or 98.
What bulb fits the vanity mirror light?
The vanity mirror light bulb is 7065.
What bulb is used for the interior door light?
The interior door light bulb is listed as 6411 or 6428.
Does the 2012 Buick Regal use the same bulb for every trim?
Not always. Trim and lighting package can vary by market and body style, so the correct bulb can depend on whether the car has halogen or HID headlights and which lighting package it came with.
Should I check the bulb before ordering a replacement?
Yes. Checking the installed bulb is a good idea, especially if your Regal has been modified or if you are replacing a bulb on a car with optional equipment.