Posted on 07/18/2025 by Alla Lighting
Table of Contents
Ready to upgrade your old halogen bulbs? Learn how to replace and complete the installation of LED rear turn signal bulbs. Easy installation and tips!
The halogen interior light bulbs may be too dim in your 2021 Toyota Tacoma, which can make vision difficult, especially in bad weather or severe driving conditions. Upgrading the old halogen bulbs on your Toyota Tacoma with new aftermarket LED bulbs can add a great new look to your vehicle and improve visibility at night for a safer driving experience.
If you choose to upgrade your old halogen bulbs to new LED bulbs, it is best to confirm you have the correct replacement LED bulb by referring to the original bulb or the vehicle’s direct owner’s manual.
We will show you how to install your new ALLA Lighting LED bulbs for your map light application.
Bulb sizes for the 2021 Toyota Tacoma map light bulb is # 12961(W5W)
We’ll begin with the driver side map light.
Insert your trim tool on the edge closest to you nearest the switch, pry it down until the clip is free.Â
On the opposite side use your tool to pry out that clip.
Pull down the lens and slide it towards the switch to remove it.
We highlight here the three clips holding it in.
Wrap some tape around the bulb to make it easier to pull out.
Pull out the incandescent bulb.
Replace it with the LED and test it.
Put the outside edge of the lens in first then push up the other corners to lock it.
Now repeat those steps on the other side.
Pry out both edges closest to the switch.
Wiggle it out towards the middle.
Wrap the bulb in tape and pull it out.
Replace it with the LED and test it.
Put in the outside edge of the lens first then push in the other corners.
These new LED bulbs are much brighter than the incandescent bulbs, they light up the entire cabin of the truck and are pure 6000k white.
Check out our Step by Step installation video 2021 Toyota Tacoma!
Congratulations! Your LED map lights installation is now complete in your 2021 Toyota Tacoma. If you experienced any issues during your installation and unable to complete installation, please contact us for assistance. If the LED bulbs are experiencing hyper-flashing, flickering, an error code issues, then load resistors for this application will be required to be installed. These issues can occur due to the LEDs low current nature, which draws much less current than original stock halogen bulbs.
Please feel free to contact us at service@allalighting.com for assistance. Our team of highly trained representatives will be available to assist and provide the best solution. May also visit us at www.allalighting.comÂ
Looking for more LED upgrades for your 2021 Toyota Tacoma. Check out the below bulb guide! For your reference only. All information below is not 100% guaranteed accurate. Please confirm the original bulb part numbers by referring to the original bulb or the vehicle’s direct owner’s manual prior to purchase.
Front Exterior Lights
Front Fog Light Bulb. Stock #: H16 / LED
Front Sidemarker Light Bulb. Stock #: 12961 (W5W)
Front Turn Signal Light Bulb. Stock #: 7440NA
High Beam and Low Beam Headlight Bulb. Stock #: LED
High Beam Headlight Bulb. Stock #: H9
Low Beam Headlight Bulb. Stock #: H11
Rear Exterior Lights
Back Up Light Bulb. Stock #: 921
Brake Light Bulb. Stock #: 7443
Center High Mount Stop Light Bulb. Stock #: 168
License Plate Light Bulb. Stock #: 12961 (W5W)
Rear Side marker Light Bulb. Stock #: 7443
Rear Turn Signal Light Bulb. Stock #: 7443
Tail Light Bulb. Stock #: 7443
Interior Lights
Category: Home, How to Install, Toyota Tacoma
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