2021 HONDA ACCORD SEDAN coolant temperature

561
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
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 a bout -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.
Reserve
Tank
MAXMIN

uuOverheating uHow to Handle Overheating
614
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 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, restart it and check the temperature gauge.
If the temperature gauge pointer has come do wn, resume driving. If it has not come
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.
MAX
Reserve Tank
MIN

650
Index
Shift Lever Does Not Move....................... 611
Shifting............................................ 429, 431
Controls ..................................................... 165
Coolant (Engine) ....................................... 561
Adding to the Engine Coolant Reserve
Tank ...................................................... 561
Adding to the Radiator ............................ 562
Overheating............................................. 613
Creeping (Automatic Transmission/ Continuously Variable Transmission) ..... 421
Cross Traffic Monitor ................................ 527
Cup Holders ............................................... 227
Customer Service Information ................. 647
Customized Features ................................ 352
D
Daytime Running Lights ........................... 198
Dead Battery ............................................. 608
Defaulting All the Settings ...................... 371
Defrosting the Windshield and
Windows .................................................. 241
Devices that Emit Radio Waves ................ 639
Dimming
Headlights ............................................... 195
Rearview Mirror ....................................... 210
Dipstick (Engine Oil) ................................. 554
Directional Signals (Turn Signal) .............. 194
Door Mirrors ............................................. 211 Doors
......................................................... 167
Auto Door Locking .................................. 180
Auto Door Unlocking .............................. 180
Door and Trunk Open Message ................. 37
Keys ........................................................ 167
Locking/Unlocking the Doors from the Inside ...................................... 177
Locking/Unlocking the Doors
from the Outside ................................... 170
Lockout Prevention System ...................... 176
DOT Tire Quality Grading ........................ 580
Driver Attention Monitor ........................ 154
Driver Information Interface ................... 140
Switching the Display .............................. 140
Warning and Information Messages ........ 109
Driving ...................................................... 403
Automatic Transmission/Continuously Variable
Transmission.......................................... 421
Braking ................................................... 510
Shifting Position ...................... 422, 429, 431
Starting the Engine.................................. 414
Driving Position Memory System ............ 207
Driving Support Information ................... 157
Dust and Pollen Filter ............................... 589
E
Eco Assist® System ...................................... 12
ECON Button ............................................ 436
Econ Mode
Indicator.................................................. 100 Elapsed Time
............................................ 147
Electric Power Steering (EPS) System
Indicator ........................................... 95, 619
Electronic Stability Control (ESC) ............ 443
Emergency ................................................ 628
Emergency Engine Stop ........................... 607
Emergency Trunk Opener ....................... 183
Emissions Testing (Readiness Codes) ...... 641
Engine ....................................................... 638
Coolant .................................................. 561
Jump Starting ......................................... 608
Oil .......................................................... 553
Starting................................................... 414
Engine Coolant ........................................ 561
Adding to the Engine Coolant Reserve Tank ..................................................... 561
Adding to the Radiator ........................... 562
Overheating ............................................ 613
Temperature Gauge ................................ 139
Engine Oil ................................................. 553
Adding ................................................... 556
Checking ................................................ 554
Displaying Oil Life ................................... 544
Low Oil Pressure Warning ....................... 615
Recommended Engine Oil ....................... 553
ENGINE START/STOP Button .................... 191
EPS (Electric Power Steering) System ...... 619
Exhaust Gas Hazard
(Carbon Monoxide) .................................. 78
Exterior Care (Cleaning) .......................... 592
Exterior Mirrors ........................................ 211

653
Index
L
Lane Keeping Assist System (LKAS)........ 488
Language (HFL) ........................................ 377
LATCH (Child Seats) ................................... 69
Lights ................................................ 195, 566
Auto High-Beam ..................................... 199
Automatic............................................... 196
Bulb Replacement ................................... 566
Daytime Running Lights .......................... 198
Fog Lights ............................................... 197
High Beam Indicator ................................. 97
Interior.................................................... 223
Light Switches......................................... 195
Lights On Indicator.................................... 97
Turn Signals ............................................ 194
Load Limits ............................................... 407
Locking/Unlocking ................................... 167
Auto Door Locking/Unlocking ................. 180
Childproof Door Locks ............................ 179
From Inside ............................................. 177
From Outside .......................................... 170
Keys........................................................ 167
Using a Key............................................. 175
Lockout Prevention System ..................... 176
Low Battery Charge ................................. 615
Low Fuel Indicator ..................................... 93
Low Oil Pressure Warning ....................... 615
Low Remote Signal Strength .................. 169
Low Speed Braking Control .................... 467
Lower Anchors ........................................... 69
Lubricant Specifications Chart ........ 634, 636Luggage (Maximum Load Limit)
............. 407
Lumbar Support Adjustment Switch ....... 213
M
Maintenance..................................... 149, 539
Battery .................................................... 586
Brake Fluid .............................................. 564
Cleaning .................................................. 590
Climate Control System ........................... 589
Coolant ................................................... 561
Maintenance Minder
TM............................ 543
Oil ........................................................... 554
Precautions .............................................. 540
Radiator .................................................. 562
Remote Transmitter ................................. 588
Replacing Light Bulbs ............................... 566
Safety ...................................................... 541
Service Items ........................................... 547
Tires ........................................................ 577
Transmission Fluid ................................... 563
Under the Hood ...................................... 550
Malfunction Indicator Lamp .............. 87, 616
Map Lights ................................................ 224
Maximum Load Limit ............................... 407
Meters, Gauges ......................................... 139
Mirrors ....................................................... 210
Adjusting ................................................. 210
Door ........................................................ 211
Exterior .................................................... 211
Interior Rearview ..................................... 210 Modifications (and Accessories)
.............. 595
Moonroof ................................................. 190
MP3 ........................................................... 296
MP3/WMA/AAC ........................................ 296
Multi-View Rear Camera .......................... 531
N
Navigation........................................ 148, 163
Numbers (Identification) .......................... 638
O
Odometer................................................. 142
Oil (Engine) ............................................... 553
Adding .................................................... 556
Checking................................................. 554
Displaying Oil Life .................................... 544
Low Oil Pressure Warning........................ 615
Recommended Engine Oil ....................... 553
Viscosity .................................................. 553
Open Source Licenses ............................... 346
Opening
Trunk ...................................................... 630
Opening/Closing Hood....................................................... 552
Moonroof ............................................... 190
Power Windows ...................................... 187
Trunk ...................................................... 181
Outside Temperature ............................... 143
Overheating .............................................. 613