12-Volt Battery - Honda CLARITY 2021 Owner's Manual

12-Volt Battery

Checking the 12-Volt Battery
Test Indicator Window
If your vehicle's battery is disconnected or goes dead:
• The audio system is disabled.
2 Reactivating the audio system P. 202
• The clock resets.
2 Clock P. 134
Check the battery condition monthly. Look at
the test indicator window and check the
terminals for corrosion.
The battery condition is monitored by the
sensor on the negative terminal. If there is a
problem with the sensor, the warning
message on the driver information interface
will let you know. Have your vehicle checked
by an authorized Honda Clarity Fuel Cell
dealer.

112-Volt Battery

WARNING
3
The battery gives off explosive hydrogen
gas during normal operation.
A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.
When conducting any battery
maintenance, wear protective clothing and
a face shield, or have a skilled technician do
it.
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
The test indicator's color information is on the
battery.
When you find corrosion, clean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.
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