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Lexus IS 250 2015 Bulb Size
Bulb size chart
Fog Light Bulb Front(with halogen headlights) - H16 LED
Fog Light Bulb Front(with HID headlights) - H11 LED
Headlight Bulb High Beam - 9005
Headlight Bulb High Beam and Low Beam - D4S
Headlight Bulb Low Beam - H11
Back Up Reverse Light Bulb - 921
Daytime Running Light Bulb - 9005
Parking Light Bulb - 7444NA
Stepwell Light Bulb - 194
Turn Signal Light Bulb Front - 7444NA
Turn Signal Light Bulb Rear - 7440A
Interior Door Light Bulb - 168
Map Light Bulb - 168
Trunk or Cargo Area Light(Compare to original - Option 1) - 168
Trunk or Cargo Area Light(Compare to original - Option 2) - DE3022
H16 LED Bulbs
Used for: Fog Light Bulb Front(with halogen headlights)
H11 LED Bulbs
Used for: Fog Light Bulb Front(with HID headlights)
9005 Bulbs
Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
D4S Bulbs
Used for: Headlight Bulb High Beam and Low Beam
H11 Bulbs
Used for: Headlight Bulb Low Beam
921 Bulbs
Used for: Back Up Reverse Light Bulb
7444NA Bulbs
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
194 Bulbs
Used for: Stepwell Light Bulb
7440A Bulbs
Used for: Turn Signal Light Bulb Rear
168 Bulbs
Used for: Interior Door Light Bulb, Map Light Bulb, Trunk or Cargo Area Light(Compare to original - Option 1)
DE3022 Bulbs
Used for: Trunk or Cargo Area Light(Compare to original - Option 2)
If you need to replace a bulb on your 2015 Lexus IS 250, this page helps you verify the correct bulb size by lighting position. That matters because the IS 250 can use different bulbs depending on the headlight setup, trim, and market, so the same model year may not share every fitment across every location.
Use the chart to match each bulb to its exact function before ordering. For the 2015 Lexus IS 250, common positions include the low beam, high beam, fog light, turn signal, parking light, reverse light, map light, interior door light, trunk or cargo light, and stepwell light, with some locations varying by halogen or HID equipment.
Fitment on the 2015 Lexus IS 250 can vary by trim package, lighting package, body style, and region, so it is smart to compare the bulb in the car with the listing before buying. This is especially important for halogen versus HID headlight setups, since the fog light and headlight requirements can differ, and some aftermarket LED conversions may change the bulb type or require additional parts. If your car has been modified, the safest approach is to check the installed bulb directly, confirm the connector and base style, and then purchase the replacement that matches what is already in the housing.
FAQ
What bulb does the 2015 Lexus IS 250 use for the low beam headlight?
The listed low beam bulb for the 2015 Lexus IS 250 is H11. This applies to the standard low beam position shown on the chart.
What bulb fits the high beam on a 2015 Lexus IS 250?
The high beam bulb listed for this model year is 9005. Always confirm the headlight type on your car before ordering, since equipment can vary by market.
Does the 2015 Lexus IS 250 use the same bulb for daytime running lights and high beams?
Yes, the chart lists 9005 for both the high beam and the daytime running light bulb positions. That does not mean every car is identical, so it is still best to verify the installed bulb.
What bulb is used for the front turn signal on the 2015 Lexus IS 250?
The front turn signal bulb is listed as 7444NA. This is separate from the rear turn signal bulb and should not be swapped without checking fitment.
What bulb fits the rear turn signal on this Lexus?
The rear turn signal bulb listed for the 2015 Lexus IS 250 is 7440A.
What is the reverse light bulb size for the 2015 Lexus IS 250?
The back up reverse light bulb is listed as 921. If one side is out, it is often a good idea to replace both sides together.
What bulb does the map light use?
The map light bulb listed for this model is 168. This same size is also used in several other interior positions on the chart.
What bulb fits the interior door light?
The interior door light bulb is listed as 168. Check the lens and socket style before purchase, especially if the interior has been changed or upgraded.
What are the trunk or cargo area bulb options for the 2015 Lexus IS 250?
The page lists two trunk or cargo area options: 168 for one configuration and DE3022 for another. Use the bulb currently installed in the car to confirm which one you need.
What bulb is used for the stepwell light?
The stepwell light bulb listed is 194. This is a common interior bulb size, but it should still be matched to the original part in the vehicle.
What fog light bulb does the 2015 Lexus IS 250 use with HID headlights?
For vehicles with HID headlights, the front fog light bulb is listed as H11 LED. Because aftermarket LED bulbs can vary, verify the actual housing and connector before ordering.
What fog light bulb does the 2015 Lexus IS 250 use with halogen headlights?
For vehicles with halogen headlights, the front fog light bulb is listed as H16 LED. Trim and lighting package differences can affect fitment, so checking the installed bulb is recommended.
Does the 2015 Lexus IS 250 have an optional HID headlight bulb listing?
Yes, the optional raw list includes D4S for a headlight high beam and low beam setup. This is only relevant to vehicles equipped with that specific lighting system.
What is the best way to confirm the right bulb before buying?
Check the bulb already installed in your 2015 Lexus IS 250, compare the base and connector shape, and match it to the chart on this page. This is the most reliable way to avoid ordering the wrong part when trim or market differences are involved.