2020 HONDA CIVIC SEDAN overheating

Contents
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
This owner’s manual covers all models of your vehicle. You may find
descriptions of equipment and features that are not on your
particular model.
Images throughout this owner’s manu al (including the front cover)
represent features and equipment that are available on some, but
not all, models. Your particular mo del may not have some of these
features.
This owner’s manual is for vehicles sold in the United States and
Canada.
The information and specifications in cluded in this publication were
in effect at the time of approval for printing. Honda Motor Co., Ltd.
reserves the right, however, to discontinue or change specifications
or design at any time without notice and without incurring any
obligation.2 Safe Driving P. 33
For Safe Driving P. 34 Seat Belts P. 38 Airbags P. 46
2Instrument Panel P. 75
Indicators P. 76 Gauges and Driver Information Interface P. 111
2Controls P. 133
Clock P. 134 Locking and Unlocking the Doors P. 136
Moonroof* P. 159 Operating the Switches Around the Steering Wheel P. 160
Interior Lights/Interior Convenience Items P. 188
2 Features P. 213
Audio System P. 214 Audio System Basic Operation P. 221, 239
Customized Features P. 330, 337 HomeLink® Universal Transceiver* P. 364
2Driving P. 427
Before Driving P. 428 Towing a Trailer P. 433
Multi-View Rear Camera P. 536 Refueling P. 538
2Maintenance P. 543
Before Performing Maintenance P. 544 Maintenance MinderTM P. 547
Checking and Maintaining Wiper Blades P. 577
Heating System
*/Climate Control System* Maintenance P. 594
2 Handling the Unexpected P. 603
Tools P. 604 If a Tire Goes Flat P. 605
Shift Lever Does Not Move P. 631 Overheating P. 632
When You Cannot Unlock the Fuel Fill Door P. 645
2 Information P. 649
Specifications P. 650 Identification Numbers P. 654
Emissions Testing P. 657 Warranty Coverages P. 659
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28
Quick Reference Guide
Handling the Unexpected (P 603)
Flat Tire (P 605, 612)
● Park in a safe location and replace the
flat tire with the compact spare tire
* in
the trunk, or repair the flat tire using the
tire repair kit
*.
Indicators Come On
(P 634)
● Identify the indicator and consult the
owner's manual.
Engine Won’t Start
(P 625)
● If the battery is dead, jump start using a
booster battery.
Blown Fuse (P 640)
● Check for a blown fuse if an electrical
device does not operate.
Overheating (P 632)
● Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the engine cool down.
Emergency Towing
(P 644)
●Call a professional towing service if you
need to tow your vehicle.
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95
uuIndicators uDriver Information Interface Wa rning and Information Messages
Continued
Instrument Panel
*1:Models with the smart entry system have an ENGINE START/STOP button instead of an ignition switch.
MessageConditionExplanation
●Appears when the engine coolant temperature gets
abnormally high.
2Overheating P. 632
●Appears when you turn the ignition switch to ON
(w*1 without fastening the driver’s seat belt.
●Fasten the seat belt properly before you start to drive.
●Appears if the automatic brake hold is automatically
canceled while it is in operation.●Immediately depress the brake pedal.
●Appears when the automatic brake hold system is
turned off.
2Automatic Brake Hold P. 529
Continuously
variable
transmission models
Manual
transmission
models
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111Continued
Instrument Panel
Gauges and Driver Information Interface
Gauges
Gauges include the speedometer, tachometer, fuel gauge, and related indicators.
They are displayed when the ignition switch is in ON
(w*1.
Displays your driving speed in mph or km/h.
Shows the number of engine revolutions per minute.
Displays the amount of fuel left in the fuel tank.
Displays the temperature of the engine coolant.
*1: Models with the smart entry system have an ENGINE START/STOP button instead of an
ignition switch.
■Speedometer
■Tachometer
■Fuel Gauge
■Temperature Gauge
1 Gauges
Press the (display /information) button
repeatedly until the icon is shown on the driver
information interface. Press ENTER , then press and
hold it again. The spee dometer reading and the
displayed measurements wi ll switch between mph
and km/h.
1 Tachometer
You can turn on or off the tachometer display.
2 Customized Features P. 124, 337
1Fuel Gauge
NOTICE
You should refuel when the reading approaches .
Running out of fuel can cause the engine to misfire,
damaging the cata lytic converter.
The actual amount of remain ing fuel may differ from
the fuel gauge reading.E
1 Temperature Gauge
NOTICE
Driving with the temperat ure gauge pointer in the
upper zone can cause serious engine damage. Pull
safely to the side of th e road and allow engine
temperature to return to normal.
2 Overheating P. 632
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580
Maintenance
Checking and Maintaining Tires
Checking Tires
To safely operate your vehicle, your tires must be of the proper type and size, in
good condition with adequate tread, and properly inflated.
■Inflation guidelines
Properly inflated tires provide the best combination of handling, tread life, and
comfort. Refer to the driver’s doorjamb labe l or specifications page for the specified
pressure.
Underinflated tires wear unevenly, adversely affect handling and fuel economy, and
are more likely to fail from overheating.
Overinflated tires make your vehicle ride harshly, are more prone to road hazards,
and wear unevenly.
Every day before you drive, look at each of the tires. If one looks lower than the
others, check the pressure with a tire gauge.
At least once a month or before long trips, use a gauge to measure the pressure in
all tires, including the spare
*. Even tires in good condition can lose 1-2 psi (10-20
kPa, 0.1-0.2 kgf/cm2) per month.
■Inspection guidelines
Every time you check inflation, also examine the tires and valve stems. Look for:
• Bumps or bulges on the side or in the tread . Replace the tire if you find any cuts,
splits, or cracks in the si de of the tire. Replace it if you see fabric or cord.
• Remove any foreign objects and inspect for air leaks.
• Uneven tread wear. Have a deal er check the wheel alignment.
• Excessive tread wear.
2 Wear Indicators P. 585
•Cracks or other damage around valve stem.
1Checking Tires
Measure the air pressure when tires are cold. This
means the vehicle has been parked for at least three
hours, or driven less than 1 mile (1.6 km). If
necessary, add or releas e air until the specified
pressure is reached.
If checked when hot, tire pressure can be as much as
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm
2) higher than if
checked when cold.
Whenever tire pressure is adjusted, you must
calibrate the TPMS. 2 TPMS Calibration P. 460
Have a dealer check the tires if you feel a consistent
vibration while driving. Ne w tires and any that have
been removed and reinst alled should be properly
balanced.
Check the spare tire pressu re once a month or before
long trips.
3WARNING
Using tires that are excessively worn or
improperly inflated can cause a crash in
which you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding ti re inflation and
maintenance.
U.S. models
Models with a spare tire
* Not available on all models
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603
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 604
If a Tire Goes Flat
Changing a Flat Tire
*....................... 605
Temporarily Repair ing a Flat Tire*..... 612
Handling of the Jack ......................... 624
Engine Does Not Start Checking the Engine ........................ 625
If the Smart Entry Remote Battery is Weak .. 626Emergency Engine Stop ................... 627
Jump Starting .................................... 628
Shift Lever Does Not Move .............. 631Overheating
How to Handle Overheating............. 632
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On....634
If the Charging System Indicator Comes On ...634
If the Malfunction Indicator Lamp Comes
On or Blinks ................................... 635
If the Brake System Indicator (Red) Comes On or Blinks ................................... 636
If the Brake System Indicator (Red) Comes On or Blinks at the Same Time When the Brake
System Indicator (Amber) Comes On ... 637
If the Electric Power Steering (EPS) System Indicator Comes On ....................... 638
If the Low Tire Pressure/TPMS Indicator Comes On or Blinks ....................... 639
Fuses Fuse Locations ................................. 640
Inspecting and Changing Fuses ........ 643
Emergency Towing ........................... 644
When You Cannot Unlock the Fuel Fill Door ................................................. 645
When You Cannot Open the Trunk.....646
Refueling ........................................... 647
* Not available on all models
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632
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The temperature gauge pointer is at the mark or the engine suddenly loses
power.
• 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
pointer at the mark may damage the engine.
3WARNING
Steam and spray from an overheated
engine can seriously scald you.
Do not open the hood if steam is coming
out.
H
H
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633
uuOverheating uHow to Handle Overheating
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the temperature
gauge pointer 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 and check the cooling
system components for leaks.
u If the coolant level in the reserve tank is
low, or no coolant in the tank, check that
the radiator is cool. Cover the reserve
tank cap with a heavy cloth and open the
cap. Add coolant until it reaches the
MAX mark, and put the cap back on.
■Last thing to do
Once the engine has cooled sufficiently, restart it and check the temperature gauge.
If the temperature gauge pointer has gone down, 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 emergen cy/temporary measure only.
Have a dealer flush the system with proper antifreeze
as soon as possible.
3WARNING
Removing the reserve tank 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 reserve tank
cap.
MAX
Reserve TankMIN
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