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Used for: Fog Light Bulb Front(Base)
Used for: Fog Light Bulb Front(C)
Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
Used for: Headlight Bulb Low Beam(with halogen headlights)
Used for: Headlight Bulb Low Beam(with HID headlights)
Used for: Back Up Reverse Light Bulb
Used for: Parking Light Bulb, Interior Door Light Bulb, Map Light Bulb
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb
Used for: Dome Light Bulb
Used for: Glove Box Light Bulb
Used for: Trunk or Cargo Area Light
This 2010 Lexus IS 250 bulb size guide helps you verify the correct bulb by lighting position, so you can replace the right lamp the first time. Whether you are changing a headlight, turn signal, interior bulb, or reverse light, matching the bulb to the exact location is the easiest way to avoid fitment mistakes.
The 2010 Lexus IS 250 may use different bulb types depending on trim, market, body style, and lighting package. This page lists the common bulb sizes for the model year and helps you compare each position before you buy replacement bulbs.
For best results, confirm the bulb already installed in your vehicle before ordering, especially if your car has had previous repairs or aftermarket lighting changes. The 2010 Lexus IS 250 can differ between halogen and HID headlight setups, and fog light fitment may also vary with package or trim. If the car has been converted to LED or another aftermarket setup, the bulb listed on the chart may not match what is currently installed, so checking the actual bulb and connector is important before purchase.
The low beam bulb size for 2010 Lexus IS 250 models with halogen headlights is H11.
The low beam bulb size for 2010 Lexus IS 250 models with HID headlights is D4S.
The high beam bulb size is 9005.
The daytime running light bulb size is 9005.
The front turn signal bulb size is 7440A.
The rear turn signal bulb size is 7440A.
The back up reverse light bulb size is 921.
Both the front side marker and rear side marker bulb sizes are 194NA.
The parking light bulb size is 168.
The map light bulb size is 168, and the interior door light bulb size is also 168.
The courtesy light bulb size is 194, and the dome light bulb size is DE3021.
The trunk or cargo area light bulb size is DE3022.
The glove box light bulb size is 37.
The front fog light bulb size is H11 LED on the C setup and 9006 LED on the Base setup.
Because the 2010 Lexus IS 250 can have different lighting setups depending on trim, market, and equipment package, especially for headlights and fog lights.