The fuse boxes on a 2018 Honda Odyssey are located in two places: under the hood in the engine compartment on the driver's side, and inside the cabin on the left side of the dash behind a removable panel.
Locations and access
The two main fuse locations for the 2018 Odyssey are the engine compartment fuse box and the interior fuse box. Here is how to find and access each.
Before you inspect or replace fuses, note that the fuse diagrams live on the inside of each lid and in the owner's manual.
- Engine compartment fuse box: Located in the engine bay on the driver's side, near the strut tower/fender area. It is covered by a black plastic lid labeled “Fuse/Relay Box.” Remove the lid by releasing the locking clips; the diagram on the underside indicates which fuses protect which circuits. When replacing, use the correct amperage and ensure the fuse is fully reseated.
- Interior fuse box: Located inside the cabin on the left side of the dash, beneath the instrument panel near the driver’s knee. Remove the interior panel or the fuse box cover to access the fuses. The lid typically includes a diagram and fuse numbers for quick reference.
Concluding: Always replace fuses with the same amperage rating, and if you’re unsure about circuits or if a fuse keeps blowing, consult the owner’s manual or contact a Honda service professional for guidance.
What to do if you can’t locate or identify the fuse you need
If you’re having trouble finding a specific circuit’s fuse, refer to the owner's manual’s fuse diagrams or look for the exact circuit label on the inside of each fuse box lid. If the fuse box isn’t matching the diagrams, or if you suspect a faulty relay or wiring issue, seek professional assistance.
Summary
For a 2018 Honda Odyssey, the fuse boxes are located in two places: under the hood in the engine compartment on the driver’s side and inside the cabin on the left side of the dash. Access is straightforward via labeled covers with diagrams. Replace fuses with the correct amperage and consult the manual or a technician if problems persist.


