Posted on 03/19/2026 by Alla Lighting
Table of Contents
Ready to upgrade your old halogen bulbs? Learn how to replace and complete the installation for LED light bulbs. Easy installation and tips!
The halogen exterior bulbs may be too dim in your 2020-2023 Toyota Corolla, which can make vision difficult, especially in bad weather or severe driving conditions. Upgrading the old halogen bulbs on your 2020-2023 Toyota Corolla 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 front side marker lights bulbs.
Bulb sizes for the 2020-2023 Toyota Corolla front side marker lights bulbs is # 168
We’ll begin under the hood on your 2020-2023 Toyota Corolla.
The side marker socket is located behind the headlights. Make note that when locked, this side will be at the 3:00 position.Â
Turn the socket counterclockwise to remove it
Pull out the incandescent bulb.
Replace it with the LED bulb and test it.
Line up the tabs on the socket with the housing.
The side we highlighted earlier will be inserted at the 1:00 position.
Then turn it clockwise until it’s at the 3:00 position to lock it.Â
Now we can repeat those steps for the passenger side.Â
On the passenger side, the socket will face out at the 9:00 position.Â
Turn it clockwise to the 7:00 position to unlock it.
Pull out the incandescent bulb and replace it with the LED bulb.
Test it and we can put it back together.Â
Line up the socket at the 7:00 position and turn it clockwise to the 9:00 position to lock it.Â
The new bright yellow LED bulbs for the front side markers look amazing on your 2020-2023 Toyota Corolla.
Check out our Step by Step installation video!
Congratulations! Your LED Front Side Marker Lights Bulbs installation is now complete in your 2020-2023 Toyota Corolla. 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 2020-2023 Toyota Corolla? 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.
High Beam: Stock Bulb size # LED
Daytime Running Lightt: Stock Bulb size # LED
Fog Light: Stock Bulb size # LED
Front Turn Signal Light: Stock Bulb size # LED
Front Side Marker Light: Stock Bulb size # 168
Rear Turn Light: Stock Bulb size # 7440NA
Back-Up Reverse Light: Stock Bulb size # 921
Rear Sidemarker Light Bulb: Stock Bulb size # 168
Brake Light: Stock Bulb size # LED
Tail Light: Stock Bulb size # LED
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