Used for: Back Up Reverse Light Bulb
Used for: Parking Light Bulb(without LED parking Lights), Turn Signal Light Bulb Front(without LED parking Lights)
Used for: Turn Signal Light Bulb Front(with LED parking Lights), Turn Signal Light Bulb Rear
Used for: Dome Light Bulb
Used for: Interior Door Light Bulb, Map Light Bulb, Trunk or Cargo Area Light
Used for: Interior Door Light Bulb, Map Light Bulb, Trunk or Cargo Area Light
Used for: Vanity Mirror Light Bulb
Used for: Vanity Mirror Light Bulb
This 2019 Toyota Prius bulb size page helps you verify the correct bulb by lighting position, so you can match the right part before you buy. The Prius uses a mix of LED and halogen-style bulbs depending on the lamp location, and the exact setup can vary by trim, lighting package, market, and body style.
Use the chart on this page to check common exterior and interior lights such as the low beam, high beam, brake light, license plate light, tail light, daytime running light, side marker, reverse light, turn signal, map light, dome light, and vanity mirror light. That makes it easier to find the right replacement whether you are fixing one bulb or planning a full set.
For best fitment, always compare the bulb position on your vehicle with the chart and inspect the installed bulb before ordering. Some 2019 Toyota Prius models come with LED lighting in certain positions, while others use replaceable bulbs like 921, 168/917, 194/7441, 7444NA, 7440A, or DE3175 depending on the lamp. If you are considering an aftermarket LED conversion, check polarity, heat management, and whether the housing is designed for LED use, since not every halogen-to-LED swap will perform the same way. Trim and package differences can change the bulb type, so a quick visual check of the existing bulb is the safest way to avoid a mismatch.
The 2019 Toyota Prius can use LED lighting for the headlight functions, and the chart lists both high beam and low beam as LED on this page. Because lighting equipment can vary, confirm the exact headlamp setup on your specific Prius before ordering.
On this page, the low beam is listed as LED. That usually means the bulb is part of an LED lighting assembly rather than a simple plug-in halogen bulb, so replacement may differ from a standard bulb swap.
The back up reverse light bulb is listed as 921. If your Prius has the same setup shown on the chart, that is the bulb size to check for reverse light replacement.
The license plate light bulb is listed as LED for the 2019 Toyota Prius on this page. If your vehicle matches this configuration, you should verify whether the lamp is an integrated LED unit or a serviceable bulb-style housing.
The rear turn signal light bulb is listed as 7440A. This is the bulb size to compare against the bulb currently installed in the rear signal lamp.
For models with LED parking lights, the front turn signal light bulb is listed as 7440A. Always confirm the lighting package on your Prius, since the front signal setup can differ by trim.
For Prius models without LED parking lights, the front turn signal light bulb is listed as 7444NA. This is one of the key fitment differences to check before buying.
The parking light bulb without LED parking lights is listed as 7444NA. If your Prius does not have the LED parking light setup, this is the bulb size to verify.
Yes, the chart lists the trunk or cargo area light, map light, and interior door light as 168 or 917. Those interior positions may share the same bulb family, but you should still confirm the exact lamp in your vehicle.
The vanity mirror light bulb is listed as 194 or 7441. Check the bulb currently installed in the mirror visor lamp, since either size may be shown depending on the specific setup.
The dome light bulb is listed as DE3175. If your 2019 Toyota Prius has the same interior dome lamp configuration, that is the bulb size to match.
Yes. Trim level, lighting package, market, and body style can change whether a position uses LED or a replaceable bulb. That is why it is important to verify by lighting position rather than assuming every Prius uses the same bulb.
Yes. Checking the installed bulb is the best way to confirm fitment, especially on a 2019 Prius with mixed LED and bulb-type lighting. It helps prevent ordering the wrong part for a specific lamp position.
