What Size Bulbs Does a 2013 Scion iQ Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$15 - $40 (Halogen) / $30+ (LED)
What Lighting System Does the 2013 Scion iQ Have?
The 2013 Scion iQ features a comprehensive lighting system with 9 bulb positions. It uses halogen technology with H11 LED low beams and N/A high beams in a dual-bulb configuration. The iQ has been available from 2012 to 2015, and the 2013 model falls in the mid-generation years.
Can You Put LED Bulbs in a 2013 Scion iQ?
To upgrade the 2013 Scion iQ headlights to LED, you will need a H11 LED LED kit for the low beams and a N/A LED kit for the high beams. Start with the low beams since they are used most often and have the biggest impact on nighttime visibility.
How to Replace Bulbs on a 2013 Scion iQ
The H11 bulb uses a quarter-turn bayonet mount that locks with a short twist. To remove the old bulb, disconnect the wiring harness first, then twist the bulb counter-clockwise and pull it out. Older model years like the 2013 iQ typically offer easy access to the headlight bulbs from behind the headlight assembly under the hood. Most owners can complete the swap in under 10 minutes per side. When installing the new bulb, avoid touching the glass with bare fingers. Skin oils create hot spots that shorten bulb life. Wear clean gloves or handle the bulb by its plastic base only.
Full Upgrade Bundle
Upgrade All 13 Positions at Once
2013 Scion iQ Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | H11 LED | Buy H11 LED |
High Beam | N/A | Buy N/A |
Fog Light | N/A | Buy N/A |
Brake Light | LED Bulb | Buy LED Bulb |
Side Marker | 7443 LED | Buy 7443 LED |
Turn Signal Front | 7440NA LED | Buy 7440NA LED |
Turn Signal Rear | 7440NA LED | Buy 7440NA LED |
Dome Light | N/A | Buy N/A |
License Plate | 192 | Buy 192 |
Map Light | N/A | Buy N/A |
Parking Light | 2827 | Buy 2827 |
Reverse Light | 921 | Buy 921 |
Trunk Light | LED Light | Buy LED Light |
Want to upgrade everything at once?
Shop Complete LED Kit for 2013 Scion iQHow Long Do 2013 Scion iQ Headlight Bulbs Last?
Standard halogen headlights on the 2013 Scion iQ have an expected lifespan of 500 to 1,000 hours, which works out to roughly 2 to 3 years of normal use. Signs of a failing halogen bulb include noticeably dimmer output, a yellowish tint compared to the other headlight, or intermittent flickering. At 13 years old, the original bulbs on your iQ are likely overdue for replacement. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.
What Bulbs Are Compatible with the 2013 Scion iQ?
The H11 low beam bulb on the 2013 Scion iQ is cross-compatible with H8, H9, H16 bulbs. These share the same physical base and electrical connection, so they will fit the socket. However, H11 is the recommended size because it is optimized for the wattage and beam pattern designed into your headlight housing. Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.
2013 Scion iQ Headlight FAQ
Did Scion iQ Bulb Sizes Change Over the Years?
The Scion iQ has maintained consistent bulb sizes across all model years from 2012 to 2015. The low beam has used a H11 LED bulb throughout, which means replacement parts and LED upgrade kits are widely available and well-tested for this model. If you find a deal on bulbs for any iQ year in this range, they will fit your 2013 model.
Other iQ Years
More from Scion
Other Vehicles That Use H11 LED Bulbs
These vehicles from other makes also use a H11 LED low beam bulb: