2016 Toyota Tacoma — Bulb Sizes (Headlight, Tail, Fog)

As an ASE-certified master technician, I’ve worked on countless third-generation Toyota Tacomas. The 2016 model year marked the beginning of this highly popular generation. Whether you're dealing with a burned-out low beam or looking to upgrade your factory halogen lights to crisp LEDs, having the correct bulb size is critical. Below is your comprehensive guide to the 2016 Toyota Tacoma lighting system.

Quick Reference: 2016 Toyota Tacoma Bulb Size Chart

Here is the complete bulb size list for the 2016 Toyota Tacoma. Note: Depending on your trim level (SR, SR5, TRD Sport, TRD Off-Road, Limited), some bulbs may be factory LED, meaning the entire housing or LED board must be replaced rather than a simple bulb.

*The SR and SR5 trims generally use standard halogen bulbs for DRLs and fogs, while TRD and Limited models frequently feature factory LED DRL strips and occasionally LED fog lights. Always check your specific housing before ordering.

LED vs Halogen Upgrade Considerations

Upgrading the 2016 Tacoma from factory halogens to LEDs is incredibly popular, especially for the H11 low beams and 921 reverse lights. However, there are a few technical hurdles to keep in mind:

• CANBUS Systems and Hyperflashing: While the Tacoma's electrical system is relatively straightforward compared to European vehicles, swapping your front or rear turn signals (7444NA/7440) to LEDs will cause "hyperflashing" (rapid blinking). You will need LED bulbs with built-in load resistors, or you will need to splice inline 50W 6-ohm load resistors to mimic the current draw of a halogen bulb.
• Projector Housing Limits: The 2016 Tacoma utilizes a projector housing for the low beam (H11). When selecting an LED upgrade, ensure you choose a bulb with diodes positioned exactly where the halogen filament would be. A bulky LED can create dark spots or scatter light, blinding oncoming traffic.
• Dust Cover Clearance: LED bulbs often have cooling fans or heat sinks on the back. Make sure the H11 or H9 LED you choose leaves enough clearance for the factory headlight dust covers to seal properly to prevent moisture intrusion.

How to Replace Each Bulb

Here are some quick technician tips for swapping out the bulbs on your 2016 Tacoma:

• Low & High Beam Headlights (H11/H9): Accessible from under the hood. The passenger side is wide open, but the driver side requires maneuvering around the battery and washer fluid neck. Twist counterclockwise to remove. Do not touch the glass of the new halogen bulb with bare fingers; skin oils will cause it to shatter.
• Fog Lights (H11/H16): The easiest way to access these is from underneath the front bumper or by turning the wheel fully to one side, removing a few 10mm bolts/push-pins from the fender liner, and reaching in.
• Front Turn Signals & DRLs: Located right next to the headlight bulbs. These require a firm twist. If you have big hands, moving the battery slightly on the driver's side can save your knuckles.
• Tail, Brake, Rear Turn, and Reverse Lights: Drop the tailgate and remove the two 10mm bolts securing the tail light assembly. Pull the assembly straight back (toward the rear of the truck, not to the side) to pop it off its alignment pins. All rear bulbs twist out easily from here.
• License Plate Lights: Reach up behind the rear bumper, twist the socket 1/4 turn, and pull it down. It takes less than two minutes.
• Interior Map/Dome Lights: Use a plastic trim removal tool to gently pry the plastic lenses off. A metal flathead screwdriver will scratch the plastic overhead console.

Common Lighting Issues for this Generation

The third-generation Tacoma is notoriously reliable, but as these trucks age, a few lighting quirks have emerged:

1. Moisture in Headlights/Taillights: Sometimes the factory seals around the headlight assemblies fail, or aftermarket LED dust covers aren't sealed right. If you see condensation, check your seals.
2. Melted DRL Housings: Some early 2016-2017 Tacomas had issues where the factory halogen DRL bulb ran too hot, slightly scorching the plastic housing. Swapping to a low-heat LED DRL can prevent this.

If you’re running into complex electrical issues, dealing with damaged wiring harnesses, or simply don't have the time to wrestle with headlight housing replacements, let a professional handle it.

Find a trusted shop on Repairius.