coolant temperature HONDA CIVIC 2023 User Guide

704
uuMaintenance MinderTMuTo Use Maintenance MinderTM
Maintenance
1Maintenance Service Items
•Adjust the valves during services A, 0, 9, 1, 2, or 3
if they are noisy.
Canadian models without Auto Idle Stop
*1: If a Maintenance Minder message does not appear more than 12 months after the display is reset,
change the engine oil every year.
*2: If you drive in dusty conditions, replace the air cleaner element every 24,000 km (15,000 miles).
*3: If you drive primarily in urban areas that have high concentrations of soot in the air from industry and from diesel-powered vehicles, replace the dust and pollen filter every 24,000 km (15,000 miles).
*4: Driving in mountainous areas at very low vehicle speeds results in higher transmission temperatures. This requires transmission fluid changes more frequently than recommended by the Maintenance
Minder
TM.
If you regularly drive your vehicle under these conditions, have the transmission fluid changed every
60,000 km (37,500 miles).
*5: If a Maintenance Minder message does not appear more than 36 months after the display for item 7 is reset, change the brake fluid every 3 years.
# : See information on maintenance and emissions warranty in the first column on page 825.
CODEMaintenance Main Items
A
●Replace engine oil*1
0●Replace engine oil*1 and oil filter
CODEMaintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element*2
●Replace dust and pollen filter*3
●Inspect drive belt
3
●Replace transmission fluid*4
4●Replace spark plugs●Inspect valve clearance
5
●Replace engine coolant
7●Replace brake fluid*5
9●Service front and rear brakes●Check expiry date for tire repair kit bottle●Inspect these items: • Tie rod ends, steering gearbox, and boots
• Suspension components
• Driveshaft boots
• Brake hoses and lines (including ABS/VSA ®)
• All fluid levels and condition of fluids
• Exhaust system
#
•Fuel lines and connections#
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 704 ページ ２０２２年６月２３日　木曜日　午後９時２８分

721
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. 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.
3. Inspect the cooling system for leaks.
Specified coolant: Ho nda Long Life Antifreeze/Coolant Type 2
■Reserve Tank
Models with Auto Idle Stop
1Engine Coolant
NOTICE
Genuine Honda engine coolan t 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 anti freeze/coolant 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.
MAX
MIN
Reserve Tank
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 721 ページ ２０２２年６月２３日　木曜日　午後９時２８分

723
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. Add the engine coolant accordingly.
1. Make sure the engine and radiator are cool.
2. 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.
3. Inspect the cooling system for leaks.
Specified coolant: Ho nda Long Life Antifreeze/Coolant Type 2
■Checking the Coolant
Models without Auto Idle Stop
1Engine Coolant
NOTICE
Genuine Honda engine coolan t 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 anti freeze/coolant 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.
Reserve Tank
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 723 ページ ２０２２年６月２３日　木曜日　午後９時２８分

uuOverheating uHow to Handle Overheating
792
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the Engine
temperature too hot. Do not drive.
Allow engine to cool. message on the
driver information interface disappears.
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, add coolant until it reaches the
MAX mark.
u If 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 driver information
interface.
If the Engine temperature too hot. Do not drive. Allow engine to cool.
message does not appear, resume driving. If it appears again, 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.
MAX
Reserve Tank
MIN
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 792 ページ ２０２２年６月２３日　木曜日　午後９時２８分

uuOverheating uHow to Handle Overheating
794
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the temperature
gauge goes 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, add coolant until it reaches the
MAX mark.
u If there is no coolan t in the reserve tank,
check that the radiator is cool. Cover the
reserve tank 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, restart it and check the temperature gauge.
If the temperature gauge has gone down, re sume 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 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 Tank
MIN
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 794 ページ ２０２２年６月２３日　木曜日　午後９時２８分

831
Index
Continuously Variable TransmissionCreeping................................................. 502
Fluid ....................................................... 725
Kickdown ............................................... 502
Operating the Shift Lever .......... 29, 504, 506
Shift Lever Does Not Move ...................... 790
Shifting ........................................... 503, 505
Controls .................................................... 173
Coolant (Engine) .............................. 721, 723
Adding the Coolant ........................ 721, 724
Overheating ............................................ 791
Creeping (Continuously Variable Transmission) .......................................... 502
Cross Traffic Monitor ............................... 677
Cup Holders .............................................. 235
Customer Service Information ................ 827
Customize Display .................... 136, 151, 170
Customized Features ....................... 382, 390
D
Daytime Running Lights .......................... 209
Dead Battery ............................................ 786
Defaulting All the Settings .............. 389, 413
Defrosting the Windshield and Windows ................................................. 251
Devices that Emit Radio Waves ............... 818
Dimming Headlights .............................................. 206
Rearview Mirror ...................................... 220
Dipstick (Engine Oil) ................................ 713 Directional Signals (Turn Signal)
............. 205
Display Setup .................................... 266, 308
Door Mirrors ............................................. 221
Doors ......................................................... 176
Auto Door Locking .................................. 191
Auto Door Unlocking ............................... 191
Door Open Message .................................. 47
Keys ........................................................ 176
Locking/Unlocking the Doors from the Inside..................................................... 188
Locking/Unlocking the Doors from the
Outside.................................................. 179
DOT Tire Quality Grading ........................ 739
Drive Mode Switch ........................... 525, 529
Driver Attention Monitor ................ 131, 161
Driver Information Interface ... 125, 148, 154
Switching the Display ...................... 125, 155
Driver's Knee Airbag .................................. 65
Driving ....................................................... 485
Braking .................................................... 657
Continuously Variable Transmission ......... 502
Shifting Gear ........................................... 509
Shifting Position .............................. 503, 505
Starting the Engine .................................. 493
Dust and Pollen Filter ............................... 750
E
Eco Assist® System ...................................... 15
ECON Button ............................................. 513
Elapsed Time ..................................... 130, 160 Electric Power Steering (EPS) System
Indicator.......................................... 104, 798
Electronic Stability Control (ESC) ............. 535
Emergency ................................................ 808
Emergency Engine Stop ........................... 785
Emergency Hatch Opener ........................ 810
Emissions Testing (Readiness Codes) ....... 820
Engine
Coolant ........................................... 721, 723
If the Battery Is Dead ............................... 786
Oil ........................................................... 711
Starting ................................................... 493
Engine Coolant ................................. 721, 723
Adding the Coolant......................... 721, 724
Overheating ............................................ 791
Temperature Gauge ................................ 119
Engine Oil ................................................. 711
Adding .................................................... 716
Checking................................................. 713
Displaying Oil Life .................................... 696
Engine oil pressure low Warning ............. 795
Recommended Engine Oil ....................... 711
Engine oil pressure low Warning ............ 795
ENGINE START/STOP Button .................... 202
Exhaust Gas Hazard (Carbon Monoxide) .. 92
Exterior Care (Cleaning) ........................... 753
Exterior Mirrors ........................................ 221
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 831 ページ ２０２２年６月２３日　木曜日　午後９時２８分

834
Index
Kickdown (Continuously Variable Transmission) ........................................... 502
L
Lane Keeping Assist System (LKAS) ......... 618
LATCH (Child Seats) .................................... 82
Lights ................................................. 206, 728
Auto High-Beam ...................................... 210
Automatic ............................................... 207
Bulb Replacement .................................... 728
Daytime Running Lights ........................... 209
Fog Lights ................................................ 209
High Beam Indicator ................................ 106
Interior .................................................... 231
Light Switches ......................................... 206
Lights On Indicator .................................. 106
Turn Signals ............................................. 205
Limited Slip Differential (LSD) ................. 539
Load Limits ................................................ 489
Locking/Unlocking .................................... 176
Auto Door Locking/Unlocking .................. 191
Childproof Door Locks ............................. 190
From Inside .............................................. 188
From Outside ........................................... 179
Keys ........................................................ 176
Using a Key ............................................. 185
Low Battery Charge .................................. 796
Low Fuel Indicator .................................... 103
Low Remote Key Signal Strength ............ 178
Low Speed Braking Control ............. 567, 573Lower Anchors
............................................ 82
Luggage (Maximum Load Limit) ............. 489
M
Maintenance............................................. 691
Adding the Coolant......................... 721, 724
Battery .................................................... 747
Brake Fluid .............................................. 726
Cleaning ......................................... 751, 753
Climate Control System ........................... 750
Coolant ........................................... 721, 723
Maintenance Minder
TM............................ 695
Oil ........................................................... 713
Precautions ............................................. 692
Remote Transmitter ................................. 749
Replacing Light Bulbs .............................. 728
Safety...................................................... 693
Service Items ........................................... 700
Tires ........................................................ 736
Transmission Fluid ................................... 725
Under the Hood ...................................... 707
Malfunction Indicator Lamp ............ 101, 796
Manual Transmission ............................... 509
Map Lights ................................................ 232
Maximum Load Limit ............................... 489
Meters, Gauges ......................................... 118
Mirrors ...................................................... 220
Adjusting ................................................ 220
Door ....................................................... 221
Exterior ................................................... 221 Interior Rearview ..................................... 220
Modifications (and Accessories) .............. 756
Moonroof ................................................. 201
MP3 ................................................... 272, 331
Multi-View Rear Camera ......................... 681
N
Navigation................................................ 160
Numbers (Identification) ......................... 816
O
Odometer................................................. 120
Oil (Engine) .............................................. 711
Adding ................................................... 716
Checking ................................................ 713
Displaying Oil Life ................................... 696
Engine oil pressure low Warning ............. 795
Recommended Engine Oil ....................... 711
Viscosity.................................................. 711
Open Source Licenses .............................. 377
Opening
Hatch...................................................... 810
Hood ...................................................... 710
Opening/Closing
Hatch...................................................... 192
Moonroof ............................................... 201
Power Windows...................................... 198
Outside Temperature Display ................. 120
Overheating ............................................. 791
23 CIVIC HATCHBACK TYPE R-31T406100_03.book 834 ページ ２０２２年６月２３日　木曜日　午後９時２８分