What Size Bulbs Does a 2018 Honda Odyssey Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Moderate (Dust covers often present)
Est. Replacement Cost
$50 - $150 (HID System)
What Lighting System Does the 2018 Honda Odyssey Have?
The 2018 Honda Odyssey features a standard lighting system with 2 bulb positions. It uses factory HID/Xenon technology with D2S projector headlights. The Odyssey has been available from 2001 to 2023, and the 2018 model falls in the late-generation years.
Can You Put LED Bulbs in a 2018 Honda Odyssey?
The 2018 Honda Odyssey comes equipped with factory D2S HID/Xenon headlights. These already produce significantly more light than halogen bulbs, so upgrading is generally unnecessary. When your HID bulbs burn out, replace them with OEM-spec D2S HID bulbs to maintain the correct color temperature and beam pattern. Avoid cheap aftermarket HID bulbs as they can produce incorrect beam patterns and blind oncoming drivers.
How to Replace Bulbs on a 2018 Honda Odyssey
To remove the headlight bulb, disconnect the wiring harness, then twist the bulb counter-clockwise and pull it straight out of the housing. On the 2018 Odyssey, you will likely encounter rubber dust covers behind the headlight housing. These pull off by hand or unscrew depending on the design. Allow about 15 to 20 minutes per side. HID headlights operate at high voltage. Always disconnect the battery before working on the headlight assembly. Never touch the HID ballast while the headlights are on, and handle the D2S capsule with gloves to avoid oil contamination.
Full Upgrade Bundle
Upgrade All 2 Positions at Once
2018 Honda Odyssey Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | HID-D2S LED | Buy HID-D2S LED |
High Beam | 9005 LED | Buy 9005 LED |
Want to upgrade everything at once?
Shop Complete LED Kit for 2018 Honda OdysseyHow Long Do 2018 Honda Odyssey Headlight Bulbs Last?
HID/Xenon headlights on the 2018 Honda Odyssey typically last 2,000 to 3,000 hours, or about 4 to 6 years of regular driving. As HID bulbs age, they shift color toward pink or purple, which is a clear sign that replacement is needed. Flickering on startup also indicates a worn bulb or failing ballast. At 8 years old, the original bulbs on your Odyssey 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 2018 Honda Odyssey?
For the high beams, the 9005 is interchangeable with HB3. 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.
2018 Honda Odyssey Headlight FAQ
Did Honda Odyssey Bulb Sizes Change Over the Years?
Over its production run from 2001 to 2023, the Honda Odyssey has seen bulb size changes in the Low Beam and High Beam positions. The 2018 model uses the newer bulb specification introduced around 2018. Always verify the exact bulb size for your specific 2018 model year using the chart above, as using the wrong size can result in poor fitment or reduced light output.
Other Odyssey Years
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Other Vehicles That Use HID-D2S LED Bulbs
These vehicles from other makes also use a HID-D2S LED low beam bulb: