Used for: Headlight Bulb High Beam and Low Beam
Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb, Turn Signal Light Bulb Rear
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Daytime Running Light Bulb
Used for: Daytime Running Light Bulb
Used for: License Plate Light Bulb, Dome Light Bulb, Map Light Bulb
Used for: License Plate Light Bulb, Dome Light Bulb, Map Light Bulb
Used for: Parking Light Bulb(with halogen headlights), Turn Signal Light Bulb Front(with halogen headlights)
Used for: Parking Light Bulb(with HID headlights), Turn Signal Light Bulb Front(with HID headlights)
Used for: Side Marker Light Bulb Front
Used for: Side Marker Light Bulb Rear
Used for: Interior Door Light Bulb
Used for: Interior Door Light Bulb
Used for: Vanity Mirror Light Bulb
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.
The listed low beam headlight bulb for the 2012 Buick Regal is H11.
The available bulb chart lists D1S for the high beam and low beam headlight setup on some versions of the 2012 Buick Regal.
For halogen headlights, the front turn signal bulb is 4157NA.
For halogen headlights, the front parking light bulb is also 4157NA.
For HID headlights, the front turn signal bulb is 3457A.
For HID headlights, the front parking light bulb is 3457A.
The daytime running light bulb is listed as H11 LED or H16 LED, depending on the vehicle configuration.
Both the brake light and tail light use 3157R on the 2012 Buick Regal.
The rear turn signal bulb is 3157, and the back up reverse light bulb is also 3157.
The front side marker light bulb is 194NA.
The rear side marker light bulb is 3157A.
The license plate light bulb is listed as 2825 or 98.
Both the dome light and map light use 2825 or 98.
The vanity mirror light bulb is 7065.
The interior door light bulb is listed as 6411 or 6428.
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.
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.
