Used for: Back Up Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Dome Light Bulb
Used for: Interior Door Light Bulb, Map Light Bulb, Trunk or Cargo Area Light, Vanity Mirror Light Bulb
This 2020 Toyota Prius bulb size page is designed to help you verify the correct bulb type by lighting position before you buy replacement bulbs. The Prius uses a mix of LED lighting and a few replaceable incandescent-style bulbs, so checking the exact location matters whether you are replacing an exterior lamp or an interior light.
For the 2020 Toyota Prius, many key exterior functions are listed as LED, including the high beam and low beam headlights, fog lights, brake lights, daytime running lights, license plate lights, and more. Other positions such as the back up light, map light, dome light, and turn signal bulbs use specific bulb sizes, so this page helps narrow down fitment by each lighting position.
Fitment can vary by trim, lighting package, market, and body style, so always compare the bulb position on your vehicle with the chart before ordering. Some Prius models use LED assemblies that are not serviced like a standard replaceable bulb, while others may allow a direct bulb swap. If you are considering an aftermarket LED conversion, make sure the bulb base, polarity, and physical clearance match the housing. The safest approach is to check the installed bulb before purchase, especially for positions like the back up light, interior lamps, and marker lights where similar-looking bulbs can differ.
The back up light bulb listed for the 2020 Toyota Prius is 921.
The chart for this page lists the high beam and low beam headlights as LED for the 2020 Toyota Prius.
The front fog light bulb is listed as LED.
Yes. The brake light bulb is listed as LED on this page.
The rear turn signal light bulb is listed as 7440.
The vanity mirror light bulb is listed as 168.
The dome light bulb is listed as DE3175.
The map light bulb is listed as 168.
Yes. The license plate light bulb is listed as LED.
Yes. Trim level, lighting package, market, and body style can change bulb fitment, especially on LED-equipped exterior lamps.
Not usually. Many LED positions are built into the lamp assembly, so they may not accept a standard replaceable bulb.
Yes. Checking the installed bulb is the best way to confirm fitment, especially for interior lamps and any position that may vary by trim or package.
