2014-2015 GMC Sierra 1500 | Bulb Size Chart (Headlights, Fogs & More)

Last updated: March 15, 2023

In this guide, we'll help you easily and rapidly determine the replacement bulb size(s) you need for your 2014 and 2015 GMC Sierra 1500 (4th Generation). From the low beams to the taillights and everything in between.

This guide covers all sub-models and trims (Denali, SLE, and SLT). During these 2 years, the GMC Sierra 1500 came with either factory halogen bulbs or LED. We make the distinction below in our size guide.

We organized all the bulbs into 5 lighting categories with easy-to-read charts. Select any of the categories below to jump right to the bulb size chart you're looking for:

• Headlight Bulb Sizes
• Fog Light Bulb Sizes
• Brake & Tail Light Sizes
• Turn Signal & Marker Bulb Sizes
• All Other Bulb Sizes
• Bulb Size Summary
• Upgrading Your Bulbs (Popular!)
• Installation Video
• Owner Manuals
• FAQ's

---

💡 TIP: Did you know that you can upgrade your headlight and fog light bulbs on your GMC Sierra 1500? Get up to 300% more light with LED or HID bulbs. Learn more below the size charts!

️⭐ NOTE: This guide only applies to 2014 and 2015 Sierra 1500 with the original factory (OEM) assemblies. If you have aftermarket headlights, fog lights, brake lights, etc. you will need different bulb sizes as per the manufacturer's specifications.

🎯 ACCURACY: If you notice any inaccuracies or missing information, please let us know so we can update the guide. Providing accurate and complete information is important to us and our readers.

🚧 IMPORTANT: Automotive light bulbs are vehicle-specific! Follow this guide, review your owner's manual or contact your dealership to make sure you're buying the right bulbs to avoid fitment issues.

---

---

2014 & 2015 GMC Sierra 1500 - Headlight Bulb Sizes (Low & High Beam)

• Year Range 2014 and 2015.
• This vehicle uses dual-beam bulbs. Learn More

2014 & 2015 GMC Sierra 1500 - Fog Light Bulb Sizes

• Year Range 2014 and 2015.

---

2014 & 2015 GMC Sierra 1500 - Brake & Tail Lights Bulb Sizes

• Year Range 2014 and 2015.

---

2014 & 2015 GMC Sierra 1500 - Turn Signal & Marker Bulb Sizes

• Year Range 2014 and 2015.
• Factory LED lights cannot be changed or upgraded. Please visit an authorized dealer for service.

---

2014 & 2015 GMC Sierra 1500 - All Other Bulb Sizes

• Year Range 2014 and 2015.
• Factory LED lights cannot be changed or upgraded. Please visit an authorized dealer for service.

---

GMC Sierra 1500 LED/HID Bulb Size Summary

• All trims:Denali, SLE, and SLT.

---

Upgrade Your Headlight Bulbs On Your 2014-2015 GMC Sierra 1500

Looking to improve the lights on your 2014 to 2015 GMC Sierra 1500 with better, brighter, and more durable lighting? At XenonPro.com, we developed LED and HID bulbs that fit right into your vehicle. With the same design and plugs, our bulbs are incredibly easy to install and will improve your light output by up to 300%.

• Shop 2014 GMC Sierra 1500 Bulb Upgrades
• Shop 2015 GMC Sierra 1500 Bulb Upgrades

---

Discover our award-winning lighting products backed by our Lifetime Warranty:

• LED Headlights
• Xenon HID Conversion Kits

Check out some of our most popular guides:

• LED vs HID - Which Are Better?
• Headlight Replacement Cost - Complete Guide
• Do LED & Xenon HID Headlights Fade Over Time?
• How Long Should Halogen, LED & Xenon HID Headlights Last?

Discover some related topics:

• GMC Sierra 1500 (1999-2006) | Bulb Size Chart
• GMC Sierra 1500 (2007-2013) | Bulb Size Chart

---

Headlight Bulb & Assembly Replacement Video - 2014-2015 GMC Sierra 1500 (4th Generation)

Check out this video on how to change your headlamp bulbs and assemblies on your 2014 to 2015 GMC Sierra 1500. All you'll need is a flathead screwdriver and a pair of latex gloves.

---

Owner Manuals 2014 and 2015 GMC Sierra 1500

Need more information about bulb sizes, how to change the bulbs, or simply need the owner's manual? Find it below:

• 2014 GMC Sierra 1500 Owner's Manual
• 2015 GMC Sierra 1500 Owner's Manual

---

FAQ

Can this guide be applied to a 2014 or 2015 GMC Sierra 1500 Denali?

Yes. This guide applies to all sub-models and trims (Denali, SLE, and SLT) for the 2014 to 2015 GMC Sierra 1500.

What type of bulbs do you recommend for my 2014-2015 GMC Sierra 1500?

If you do a lot of nighttime driving or have difficulty seeing at night, we recommend upgrading from halogen to either LED or HID bulbs. They will produce more light and last longer than replacement bulbs.

Discover how you can put LED or HID bulbs in your factory headlights

Can I change the bulbs on my 2014-2015 Sierra 1500 myself?

Yes, so long as they are halogens. Changing halogen bulbs is quite easy for the most part. We strongly advise finding How-To videos online for the specific bulb(s) you wish to change and consult the Owner's Manual for additional help.

If your vehicle has factory LEDs, you will need to visit your dealership to have them changed.

I purchased aftermarket assemblies for my Sierra 1500, can I use this guide?

No. Aftermarket assemblies typically use different bulb sizes. Consult with the assembly manufacturer for the right bulb size(s).

---

Sources:

• XenonPro.com Research
• GMC Owner Manuals
• Sylvania Automotive
• Philips Automotive Bulb Finder (USA)

---

Disclaimer: The information contained on this page is provided free of charge to our visitors. It was prepared to the best of our abilities and with all the information available to us at the time of writing. We reserve the right to change, remove or update any information contained on this page at any time and without notice to improve its accuracy. The most reliable method to determine the bulb size is by pulling your actual bulb(s) and reading the part number indicated directly on the bulb. The information compiled on this page comes with no guarantees or warranties.