2018 GMC Sierra 1500 Headlight Bulb Size
The 2018 GMC Sierra 1500 headlights have a single bulb size (D5S) for high and low beams.
Using the 2018 GMC Sierra 1500 bulb chart below, you can quickly identify the correct replacement lamp for all 12 positions of its lighting system.
Headlight Bulb High Beam and Low Beam - D5S
Center High Mount Stop Light Bulb - 921
Brake Light Bulb - 7444
Turn Signal Light Bulb Front - 7444NA
License Plate Light Bulb - 2825
Parking Light Bulb - 7444NA
Tail Light Bulb - 7444
Turn Signal Light Bulb Rear - 7444NA
Back Up Reverse Light Bulb - 921
Side Marker Light Bulb Rear - 194NA
Vanity Mirror Light Bulb - 6612F
Trunk or Cargo Area Light - 921
Replacement Bulb Size for the 2018 GMC Sierra 1500
Considering an upgrade from the Halogen to LED or HID headlights? Find below aftermarket replacements for OEM bulbs compatible with the 2018 GMC Sierra 1500's housing. Note that you may need additional equipment to install LED or Xenon bulbs despite the correct bulb size of the lamp.
2018 GMC Sierra 1500 High and Low Beam bulb size - D5S
LED Lights
Upgrade your vehicle's lighting system with these LED headlight bulb kits and enjoy a focused and wider beam, better visibility, and enhanced clarity. With high-quality and...
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Xenon HID Conversion Kit
- Get up to 200% more vision on the road.
- Consumes less energy and enhances visibility on the road.
- Original equipment quality with an Electronic high voltage starter...
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2018 GMC Sierra 1500 Center Stop bulb size - 921
LED Lights
- 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
- Easy Installation - 1:1 design...
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You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered,...
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2018 GMC Sierra 1500 Brake bulb size - 7444
LED Lights
Introducing the AUXLIGHT 7444 LED White Light Bulbs, the epitome of cutting-edge technology for your reverse and backup lighting needs. With its uniform beam pattern...
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Product review
2018 GMC Sierra 1500 Turn Signal bulb size - 7444NA
LED Lights
You have a high-quality, durable, and reliable product. It is the only bulb that can be used as a replacement for all types of turn...
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Halogen Lights
- Twice the life of standard incandescent bulbs.
- Best value.
- Original equipment quality seal for the most reliable performance.
- Miniature bulbs by Philips, for over 100 years we have...
Product review
2018 GMC Sierra 1500 License Plate bulb size - 2825
LED Lights
– Better beam pattern: each bulb has 5 pcs high power SMD led, color temperature: 6000K(xenon white), voltage: 12V
– No polarity no flip: it...
Product review
2018 GMC Sierra 1500 Parking bulb size - 7444NA
LED Lights
You have a high-quality, durable, and reliable product. It is the only bulb that can be used as a replacement for all types of turn...
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Popular Headlights
Explore the custom LED headlight kits that will improve the visibility ahead of the 2018 GMC Sierra 1500 at night. Made of quality materials, bright and long-lasting, they would be a perfect alternative to old or dimmed factory headlights. Explore more headlights for GMC Sierra 1500 2018 here.
Popular Taillights
A pair of custom tail lights is necessary if the people behind your 2018 GMC Sierra 1500 are to be impressed. Consider direct bolt-on replacements powered by LED instead of worn-out or damaged tail lights.
![ACANII - For [Incandescent Type] 2014-2018 GMC Sierra 1500 15-19 2500HD LED Tube Tail Lights Brake Lamps Pair Left+Right](https://m.media-amazon.com/images/I/51Mz3cqctFL._AC_SX150_.jpg)
GMC Sierra 1500 2018 bulb size chart specifies the recommended bulb part numbers and types for all positions of its lighting system, like headlights, fog lights, brake lights, side markers, etc.
If you want to upgrade the headlights, the aftermarket bulb you select has to be the exact size your GMC Sierra 1500 2018 requires to fit into the housing and match the wattage and voltage specifications.
LightningLab project pulls information about the 2018 GMC Sierra 1500 bulb sizes from the vehicle's manual and leading automotive lighting suppliers. All the data is classified and fact-checked by our editorial team.
The following chart with the 2018 GMC Sierra 1500 bulb sizes is provided for informative purposes only. Consult the owner's manual or contact the dealership to double-check the correct bulb type, wattage, voltage, and whether it requires any additional equipment or modifications to be installed on the specific 2018 GMC Sierra 1500 trim.
Ensure the bulb is "DOT" compliant to avoid legal issues.
FAQs
How to replace the 2018 GMC Sierra 1500 headlight bulb?
First things first, you'll need the right 2018 GMC Sierra 1500 bulb size. Of course, you may consult the owner's manual, but let's be honest, that's as dull. Instead, just look at the chart above or remove the old bulb to see its size. It's not rocket science; it's more like... bulb science.
Follow the simple step-by-step instructions:
- 1) Park the 2018 GMC Sierra 1500 on an even surface and turn off the ignition.
- 2) Open the hood and pop it up.
- 3) Pull the lock bar up and out of the clip to fix the hood.
- 4) Identify the back of the headlight assembly where the bulb is housed.
- 5) You may need to remove other components to access it.
- 6) Locate the electrical connector at the back of the headlight compartment.
- 7) Press down on the locking tab and pull the connector away from the bulb.
- 8) Remove the Old Bulb. Depending on your trim, you may need to:
- a) Unscrew a retaining ring
- b) Unclip a metal pin
- c) Rotate the bulb counterclockwise
- 9) Insert the new bulb without touching the glass.
- 10) Plug the electrical connector back, making sure it clicks into place.
- 11) Turn on the headlights to test the new bulb.
- 12) You may need to aim your headlights.
Reviewed by Brent Ordway
Brent Ordway is an ASE-certified car technician. He has been working on cars since he was a teenager and loved helping people keep their vehicles running smoothly. Brent's skills as a mechanic are unrivaled. In 2022, he earned his place on the list of winners for the ASE Master Automobile Technician of the Year award.
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GMC Sierra 1500 Bulb Chart By Years
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