Honda CLARITY PLUG-IN HYBRID 2019 Owner's Manual page 495

■
Checking the Coolant Level for the High Voltage Battery
and Related Parts
Window
MAX
MIN
Expansion Tank
1. Check the fluid level in the tank from the
window.
2. If the coolant level has dropped below the
MIN level, have your vehicle serviced at an
authorized Honda Clarity Plug-In Hybrid
dealer.
u Only a properly trained technician can
refill the coolant and check the system
for leaks.
uuMaintenance Under the HooduCooling System
493