Honda Civic Owner's Manual page 390

uuReplacing Light BulbsuHigh-Mount Brake Light Bulb
High-Mount Brake Light Bulb
1.8 ℓ engine models
When replacing, use the following bulb.
High-Mount Brake Light: 21 W
2.4 ℓ engine models
High-mount brake light bulbs are LED type. Have an authorized Honda dealer
inspect and replace the light assembly.
388
1. Open the trunk.
2. Turn the socket to the left and remove it.
3. Remove the old bulb and insert a new bulb.
Bulb
Socket