Page 577 of 667

575
uuMaintenance Under the Hood uEngine Coolant
Continued
Maintenance
Engine Coolant
This coolant is premixed with 50% an tifreeze and 50% water. Do not add any
straight antifreeze or water.
We recommend you check the engine coolant level every time you refuel. Check the
reserve tank first. If it is completely empty, also check the coolant level in the
radiator. Add the engine coolant accordingly.
1. Make sure the engine and radiator are cool.
2. Remove the engine compartment cover.
2 Engine Compartment Cover P. 569
3.Check the amount of coolant in the reserve
tank.
u If the coolant level is below the MIN
mark, add the specified coolant until it
reaches the MAX mark.
4. Inspect the cooling system for leaks.
Specified coolant: Ho nda Long Life Antifreeze/Coolant Type 2
■Reserve Tank
1Engine Coolant
NOTICE
Genuine Honda engine coolant is a 50/50 mixture of
antifreeze and water that can withstand freezing at
temperatures as low as about -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.
Do not add rust inhibitors or other additives to your
vehicle’s cooling system. Th ey may not be compatible
with the coolant or with the engine components.
3WARNING
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.
MAX
MIN
Reserve Tank
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Page 578 of 667
uuMaintenance Under the Hood uEngine Coolant
576
Maintenance
1. Make sure the engine and radiator are
cool.
2. Remove the engine compartment cover.
2 Engine Compartment Cover P. 569
3.Turn the radiator cap 1/8 turn counter-
clockwise and relieve any pressure in the
cooling system. Do not push the cap down
when turning.
4. Push down and turn the radiator cap
counter-clockwise to remove it.
5. The coolant level should be up to the base
of the filler neck. Add coolant if it is low.
6. Put the radiator cap back on, and tighten it
fully.
■Radiator1Radiator
NOTICE
Pour the fluid slowly and ca refully so you do not spill
any. Clean up any spills immediately; they can
damage components in the engine compartment.Radiator
Cap
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Page 581 of 667

579Continued
Maintenance
Replacing Light Bulbs
Headlight Bulbs
When replacing, use the following bulbs.1.Remove the engine compartment cover.
2 Engine Compartment Cover P. 569
2. Remove the clips.
3. Remove the air intake duct.
High beam headlight:LED type*
60 W (HB3 for halogen bulb type)*
Low beam headlight:LED type
■High Beam Headlights
1Headlight Bulbs
NOTICE
Halogen bulbs get very hot when lit.
Oil, perspiration, or a scratch on the glass can cause
the bulb to overhe at and shatter.
The headlight aim is set by the factory, and does not
need to be adjusted. Howeve r, if you regularly carry
heavy items in the cargo area or tow a trailer, have
the aiming readjusted at a dealer or by a qualified
technician.
Low beam headlights are LED type. Have an
authorized Honda d ealer inspect and replace the light
assembly.
High beam headlights ar e LED type. Have an
authorized Honda d ealer inspect and replace the light
assembly.
When replacing a halogen bu lb, handle it by its base,
and protect the glass from c ontact with your skin or
hard objects. If you touch the glass, clean it with
denatured alcohol and a clean cloth.
Models with LED high beam headlights
Models with halogen high beam headlights
Models with halogen headlights
Clips
Air Intake Duct
Driver side
* Not available on all models
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Page 599 of 667

597
Maintenance
Battery
Checking the Battery
The condition of the battery is monitored by a
sensor located on the negative terminal of the
battery. If there is a problem with this sensor,
the driver information interface will display a
warning message. If this happens, have your
vehicle inspected by a dealer.
Check the battery termina ls for corrosion monthly.
To access the battery terminals:
1. Remove the engine compartment cover.
2 Engine Compartment Cover P. 569
2.Remove the clips using a Ph illips-head screwdriver, then remove the air intake
duct.
2 High Beam Headlights P. 579
If your vehicle’s battery is disconnected or goes dead:
•The audio system is disabled.
2 Audio System Theft Protection P. 229
•The clock resets*.
2 Clock P. 130
1Battery
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
When you find corrosion, cl ean 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.
When replacing the battery, the replacement must be
of the same specifications.
Consult a dealer for more information.
3WARNING
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 prot ective clothing and
a face shield, or have a skilled technician do
it.
* Not available on all models
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Page 606 of 667

604
uuCleaning uExterior Care
Maintenance
Exterior Care
Dust off the vehicle body after you drive.
Regularly inspect your vehi cle for scratches on painted surfaces. A scratch on a
painted surface can result in body rust. If you find a scratch, promptly repair it.
Wash the vehicle regularly. Wash more frequently when driving in the following
conditions:
• If driving on roads with road salt.
• If driving in coastal areas.
• If tar, soot, bird droppings, insects, or tree sap are stuck to painted surfaces.
• Fold in the door mirrors.
• For models equipped with automatic inte rmittent wipers, turn the wipers off.
• Make sure to follow the instructions indicated on the automated car wash.
If you use a conveyor type automati c car wash, keep the transmission in
(N position.
2If you want to keep the transmission in (N position [car wash mode] P. 464
•Keep sufficient distance between the cleaning nozzl e and the vehicle body.
• Take particular care around the windows. St anding too close may cause water to
enter the vehicle interior.
• Do not spray high pressure water directly into the engine compartment. Instead,
use low pressure water and a mild detergent.
■Washing the Vehicle
■Using an Automated Car Wash
■Using High Pressure Cleaners
1 Washing the Vehicle
Do not spray water into the air intake vents. It can
cause a malfunction.
Do not spray water onto the capless unit when the
fuel fill door is open. It ca n cause damage to the fuel
system or engine.
When using an automated car wash that pulls the
vehicle through with a convey or, make sure vehicle is
in car wash mode. 2 If you want to keep the transmission in
(N
position [car wash mode] P. 464
Air Intake Vents
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Page 624 of 667
622
Handling the Unexpected
Jump Starting
Turn off the power to electric devices, such as audio and lights. Turn off the engine,
then open the hood. 1.Pull up on the engine compartment cover,
remove it from the pins.
2. Remove the holding clips and the air intake
duct.
■Jump Starting Procedure1Jump Starting
Securely attach the jumper cables clips so that they
do not come off when the e ngine vibrates. Also be
careful not to tangle the ju mper cables or allow the
cable ends to touch each other while attaching or
detaching the jumper cables.
Battery performance degrades in cold conditions and
may prevent the engi ne from starting.
3WARNING
A battery can explode if you do not follow
the correct procedure, seriously injuring
anyone nearby.
Keep all sparks, open flames, and smoking
materials away from the battery.
Pin
Engine Compartment Cover
Air Intake Duct
Clip
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Page 627 of 667

625Continued
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The temperature gauge needle is at the mark or the engine suddenly loses
power.
• Stop Driving When Safe. En gine Temperature Too Hot message appears on
the driver information interface.
• Steam or spray comes out of the engine compartment.
■First thing to do
1. Immediately park the vehicle in a safe place.
2. Turn off all accessories and turn on the hazard warning lights.
u No steam or spray present: Keep the engine running and open the hood.
u Steam or spray is present: Turn off the engine and wait until it subsides.
Then, open the hood.
1 How to Handle Overheating
NOTICE
Continuing to drive with the temperature gauge
needle at the mark may damage the engine.
Continuing to drive with the Stop Driving When
Safe. Engine Temperature Too Hot message on
the driver information interface may damage the
engine.
3WARNING
Steam and spray from an overheated
engine can seri ously scald you.
Do not open the hood if steam is coming
out.
H
H
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Page 628 of 667

uuOverheating uHow to Handle Overheating
626
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the temperature
gauge needle comes down.
u If the cooling fan is not operating,
immediately stop the engine.
2. Once the engine has cooled down, inspect
the coolant level an d check the cooling
system components for leaks.
u If the coolant level in the reserve tank is
low, remove the engine compartment
cover then add coolant until it reaches
the MAX mark.
2Engine Compartment Cover P. 569
uIf there is no coolan t in the reserve tank,
check that the radiator is cool. Cover the
radiator cap with a heavy cloth and open
the cap. If necessary, add coolant up to
the base of the filler neck, and put the
cap back on.
■Last thing to do
Once the engine has cooled sufficiently, re start it and check the temperature gauge.
If the temperature gauge needle has gone do wn, resume driving. If it has not gone
down, contact a dealer for repairs.
1 How to Handle Overheating
If the coolant is leaking, contact a dealer for repairs.
Use water as an emergency/temporary measure only.
Have a dealer flush the system with proper antifreeze
as soon as possible.
3WARNING
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.
Reserve Tank
MAXMIN
19 PASSPORT-31TGS6020.book 626 ページ 2020年2月20日 木曜日 午後3時29分