Buick Regal Sportback Light Bulb Size Chart

• Buick Regal Sportback (2018) Bulb Size Chart
• Buick Regal Sportback (2019-2020) Bulb Size Chart

Tips: This chart is tailored for Buick Regal Sportback models from 2018-2020 with original factory (OEM) fittings. Bulb sizes for aftermarket headlights, fog lights, tail lights, and other components might differ based on the manufacturer's details.

We prioritize precision and thoroughness for our community. Should you spot any errors or omissions, kindly inform us for a swift guide update. We value your input immensely.

2018 Buick Regal Sportback Bulb Size Chart

Fog Light Bulbs	H11
Backup / Reverse Lights	T15/921/912
Brake / Tail Lights	1156/1157
Turn Signal Lights	1156/1157
License Plate Lights	T10/194/168
DRL Lights	1156/1157
Interior Lights	T10/194/168, T15/921/912

2019, 2020 Buick Regal Sportback Bulb Size Chart

LED Headlight Bulbs	H7
Fog Light Bulbs	H11
Backup / Reverse Lights	T15/921/912
Brake / Tail Lights	1156/1157
Turn Signal Lights	1156/1157
DRL Lights	1156/1157
Interior Lights	T15/921/912

BLOGS

View All>>

General Guides & Tips

bySEALIGHT-LED.com Team

August 07, 2026

How to Fix LED Turn Signal Hyper Flash: Causes and Solutions

Fix turn signal hyperflash with this research-based guide. Learn why LED bulbs blink fast and compare proven resistor, decoder, relay, and bulb fixes for your car.

#Turn Signal Bulbs

General Guides & Tips

bySEALIGHT-LED.com Team

August 07, 2026

5000K vs 6000K vs 6500K Headlights: Which Color Is Best?

Compare 5000K vs 6000K vs 6500K LED headlights in this complete, research-based guide. See color, brightness, night use, rain, fog, and the best bulb for your car.

#Headlight Bulb

General Guides & Tips

bySEALIGHT-LED.com Team

August 07, 2026

Projector vs Reflector Headlights: Beam, Glare & Brightness

Compare projector vs reflector headlights with a complete, research-based guide to beam pattern, glare, brightness, LED fit, and the best choice for night driving.

#Headlight Bulb