2019 Honda Odyssey Bulb Sizes (Headlight, Tail, Fog)

As an ASE-certified master technician, I have seen plenty of fifth-generation Honda Odysseys roll through the shop doors. When it comes to the 2019 Honda Odyssey, lighting is heavily dependent on your trim level. Lower trims (LX, EX, EX-L) primarily utilize standard halogen bulbs for headlights and fog lights, while the upper-tier trims (Touring and Elite) feature fully integrated LED headlight housings from the factory.

Whether you are looking to replace a burnt-out incandescent bulb or trying to upgrade your family hauler to modern LEDs, this guide will ensure you purchase the correct bulb sizes for your 2019 Honda Odyssey.

Quick reference

Use this quick reference chart to find the exact bulb size for your specific trim. Note: If a component is listed as "LED," the entire assembly must be replaced if it fails, as the diodes are not individually serviceable.

LED vs halogen upgrade considerations

Upgrading your 2019 Honda Odyssey's halogen H11 low beams and 9005 high beams to LED is a very popular modification to improve nighttime visibility. However, there are a few things to keep in mind:

• CANBUS Systems: The 2019 Odyssey's electrical system is relatively forgiving, but cheap LED bulbs can still cause hyper-flashing (especially on turn signals) or radio interference. If you upgrade the 7440 turn signals to LED, you will likely need to install inline load resistors or purchase "CANBUS-ready" LEDs with built-in resistors to prevent hyper-flashing.
• Housing Limitations: Halogen reflector housings are designed to scatter light from a filament. When installing LED bulbs in the LX/EX/EX-L housings, ensure the LED chips are aligned at the 3 o'clock and 9 o'clock positions. This prevents blinding oncoming traffic and ensures a proper beam pattern.
• Dust Covers: The Odyssey's headlight assembly is fairly tight. If you buy bulky LED bulbs with large cooling fans, you may struggle to reinstall the factory dust caps. Look for compact LED bulbs or consider deeper aftermarket dust caps.

How to replace each bulb

• Headlights (Low/High Beam): These can be accessed from underneath the hood. You will need to remove the plastic engine bay covers first. Once exposed, turn the dust cap counterclockwise, unplug the harness, and twist the bulb out. The driver's side is a bit tight near the battery, but manageable.
• Fog Lights: The easiest way to access the H8 fog lights is by turning the steering wheel all the way to one side, removing the Phillips screws and push-clips from the inner wheel well liner, and peeling the liner back.
• Front Turn Signals: Located on the outer edge of the headlight housing. Twist the socket counterclockwise to remove.
• Tail, Brake, and Rear Turn Signals: Open the rear liftgate. Remove the two 8mm bolts or Phillips screws holding the taillight assembly in place. Pull the assembly straight back to unseat the alignment pins. You can now easily swap the 7440 rear turn signal and 921 reverse bulbs.
• Interior Dome/Map Lights: Use a plastic trim removal tool to gently pry the clear plastic lenses down. Do not use a metal flathead screwdriver, as you will scratch the plastic and dent the headliner.

Common lighting issues for this generation

The fifth-generation (2018+) Honda Odyssey is a highly reliable vehicle, but it does have a few minor lighting quirks.

1. Water Intrusion: Some early 5th-gen models (2018-2019) occasionally suffer from condensation build-up inside the taillight housings. If water shorts out the integrated LED brake lights, the entire housing must be replaced.
2. Premature Halogen Failure: If your H11 low beams seem to burn out every 6–8 months, ensure that you (or your mechanic) are not touching the glass of the new bulb with bare fingers. The oils from your skin cause the bulb to overheat and shatter.

If you are dealing with persistent electrical issues, blown fuses, or you simply don't want to wrestle with wheel well liners to change your fog lights, it's always best to leave it to the professionals. Find a trusted shop on Repairius.