Engine Coolant; Checking The Battery; Checking The Reserve Tank; Charging The Agm Battery - Honda ODYSSEY 2020 Owner's Manual

MAINTENANCE
Models with Display Audio: You can also reset the Maintenance Minder
display using the audio/information screen.
Failure to reset the after a maintenance service results in the system
showing incorrect maintenance intervals, which can lead to serious
mechanical problems.

Engine Coolant

Park the vehicle on level ground. Check the reserve tank and the coolant level
in the radiator. Use Honda Long Life Antifreeze/Coolant Type 2.

Checking the Reserve Tank

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1. Make sure the engine and radiator are cool.
2. Check the amount of coolant in the
reserve tank.
If the coolant level is below the MIN
mark, add the specified coolant until
it reaches the MAX mark.
3. Inspect the cooling system for
leaks.
Removing the radiator cap while the engine is hot can cause the coolant to
spray out, seriously scalding you.
Always let the engine and radiator cool down before removing the radiator
cap.
Honda Genuine engine coolant is a 50/50 mixture of antifreeze and water
that can withstand freezing at temperatures as low as -31°F (-35°C). If your
vehicle is consistently subjected to temperatures below this, the
concentration of antifreeze in the coolant should be increased. Consult a
dealer for details.
If Honda antifreeze/coolant is not available, you may use another major
brand of non-silicate coolant as a temporary replacement. Check that it is a
high quality coolant recommended for aluminum engines. Continued use of
any non-Honda coolant can result in corrosion, causing the cooling system
to malfunction or fail. Have the cooling system flushed and refilled with
Honda antifreeze/coolant as soon as possible.
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Do not add rust inhibitors or other additives to your vehicle's cooling
system. They may not be compatible with the coolant or with the engine
components.
Adding Coolant
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1. Make sure the engine and radiator are cool.
2. Remove the engine compartment cover.
3. Turn the radiator cap 1/8 turn counterclockwise and relieve any
pressure in the cooling system.
4. Push down and turn the radiator cap counter-clockwise to remove it.
5. Pour coolant into the reserve tank until it reaches the MAX mark.
6. Put the radiator cap back on and tighten it fully.
Pour the fluid slowly and carefully so you do not spill any. Clean up any
spills immediately; they can damage components in the engine
compartment.

Checking the Battery

The battery condition is monitored by the sensor on the negative terminal. If
there is a problem with the sensor, a warning message appears on the Driver
Information Interface. Have your vehicle checked by a dealer.
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 posts, terminals, and related accessories contain lead and
lead compounds. Wash your hands after handling.

Charging the AGM Battery

AGM labeled batteries, like those installed in your vehicle, require a compatible
charger to be properly charged. Damage to the battery can result if the battery
is charged improperly or with the wrong equipment. For more information on
how to charge your vehicle's AGM battery, consult a dealer.
The battery installed in this vehicle is specifically designed for a model with
Auto Idle Stop. Using a battery other than this specified type may shorten the
battery life, and prevent Auto Idle Stop from activating. If you need to replace
MAINTENANCE
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