2020 HONDA RIDGELINE radiator

71Continued
Safe Driving
Safety Labels
Label Locations
These labels are in the locations shown. They warn you of potenti al hazards that can cause serious injury or death. Read these labels
carefully.
If a label comes off or becomes hard to read (except for the U. S. dashboard label which may be removed by the owner), contact a dealer
for a replacement.
Sun Visor
U.S. models Canadian models
Radiator Cap U.S. models
U.S. models only
Dashboard
Canadian models
Air Conditioner System
Sun Visor
U.S. models only

489
Maintenance
Maintenance Under the Hood
Maintenance Items Under the Hood
Brake Fluid
(Black Cap)
Washer Fluid
Radiator Cap
Engine Coolant
Reserve Tank Engine Oil Dipstick
(Orange) Engine Oil Fill Cap
Battery

497
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. 491
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: Honda Long Li fe 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 anti freeze/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

uuMaintenance Under the Hood uEngine Coolant
498
Maintenance
1. Make sure the engine and radiator are
cool.
2. Remove the engine compartment cover.
2 Engine Compartment Cover P. 491
3.Turn the radiator cap 1/8 turn counter-
clockwise and relieve any pressure in the
cooling system.
4. Push down and turn the radiator cap
counterclockwise 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

uuOverheating uHow to Handle Overheating
550
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. 491
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
MAX
MIN

581
Index
Controls.................................................... 111
Conversation Mirror ................................ 177
Coolant (Engine) ...................................... 497
Adding to the Radiator ........................... 498
Adding to the Reserve Tank .................... 497
Overheating ............................................ 549
Creeping (Automatic Transmission) ........ 387
Cross Traffic Monitor ............................... 471
Cup Holders .............................................. 175
Customer Service Information ................ 578
Customized Features ............................... 295
D
Daytime Running Lights .......................... 149
Dead Battery ............................................ 546
Defaulting All the Settings ...................... 319
Defogger/Heated Door Mirror ................ 155
Defrosting the Windshield and Windows ................................................. 188
Devices that Emit Radio Waves ............... 571
Dimming Headlights .............................................. 145
Rearview Mirror ...................................... 160
Dipstick (Engine Oil) ................................ 493
Directional Signals (Turn Signal) ............. 144
Display Button .......................................... 204
Door Mirrors ............................................. 161
Doors ........................................................ 113
Auto Door Locking.................................. 126
Auto Door Unlocking .............................. 126 Door Open Message ............................ 34, 92
Key .......................................................... 113
Locking/Unlocking the Doors
from the Inside ................................ 14, 123
Locking/Unlocking the Doors
from the Outside ................................... 116
Lockout Prevention System ...................... 122
DOT Tire Quality Grading ........................ 512
Driving ....................................................... 357
Adaptive Cruise Control (ACC) ................ 432
Automatic Transmission ........................... 387
Braking .................................................... 462
Off-Highway Driving Guidelines ............... 377
Shifting ................................................... 388
Starting the Engine .................................. 379
Driving Guidelines for Your Utility Vehicle ..................................................... 385
Driving Position Memory System ............. 157
Dust and Pollen Filter ............................... 521
E
Eco Assist® System ...................................... 10
ECON Button ............................................. 396
ECON Mode Indicator ................................ 88
Electric Power Steering (EPS) System Indicator ............................................ 81, 553
Electronic Stability Control (ESC) ............. 404
Emergency ................................................ 562
Emergency Trunk Opener ........................ 131
Emissions Testing (Readiness Codes) ....... 573Engine
Coolant ................................................... 497
Jump Starting .......................................... 546
Oil ........................................................... 492
Remote Engine Start................................ 381
Starting ................................................... 379
Engine Compartment Cover .................... 491
Engine Coolant ......................................... 497
Adding to the Radiator ............................ 498
Adding to the Reserve Tank..................... 497
Overheating ............................................ 549
Temperature Gauge ................................ 106
Engine Oil ................................................. 492
Adding .................................................... 494
Checking................................................. 493
Displaying Oil Life .................................... 485
Low Oil Pressure Indicator ................. 75, 551
Recommended Engine Oil ....................... 492
ENGINE START/STOP Button .................... 141
EPS (Electric Power Steering) System Indicator............................................ 81, 553
Exhaust Gas Hazard
(Carbon Monoxide) .................................. 70
Exterior Care (Cleaning) ........................... 524
Exterior Mirrors ........................................ 161

584
Index
L
Lane Keeping Assist System (LKAS)......... 445
Indicator .............................................. 87, 88
LaneWatch
TM............................................. 415
LATCH (Child Seats) .............................. 60, 65
Lights ................................................. 145, 501
Auto High Beam ...................................... 150
Automatic ............................................... 146
Bed.......................................................... 185
Bulb Replacement .................................... 501
Daytime Running Lights ........................... 149
Fog Lights ................................................ 148
High Beam Indicator .................................. 81
Interior .................................................... 171
Light Switches ......................................... 145
Lights On Indicator .................................... 82
Turn Signals ............................................. 144
Load Limits ................................................ 361
Locking/Unlocking .................................... 113
Auto Door Locking/Unlocking .................. 126
Childproof Door Locks ............................. 125
From Inside .............................................. 123
From Outside ........................................... 116
Key .......................................................... 113
Using a Key ............................................. 122
Lockout Prevention System ...................... 122
Low Battery Charge .................................. 551
Low Fuel Indicator ...................................... 78
Low Oil Pressure Indicator ................. 75, 551
Low Tire Pressure Indicator ........................ 81
Lower Anchors ............................................ 60 Lubricant Specifications Chart
................. 569
Luggage (Maximum Load Limit) ............. 361
Lumbar Support ....................................... 162
M
M (sequential mode) Indicator/Sequential
Mode Gear Selection Indicator ................ 76
Maintenance ............................................. 481
Battery .................................................... 518
Brake Fluid .............................................. 500
Cleaning ................................................. 522
Climate Control System ........................... 521
Coolant ................................................... 497
Maintenance Minder
TM............................ 485
Oil ........................................................... 493
Precautions ............................................. 482
Radiator .................................................. 498
Remote Transmitter ................................. 520
Replacing Light Bulbs .............................. 501
Safety...................................................... 483
Service Items ........................................... 487
Tires ........................................................ 509
Transmission Fluid ................................... 499
Under the Hood ...................................... 489
Wiper Blades ........................................... 507
Malfunction Indicator Lamp .............. 75, 552
Map Lights ................................................ 172
Maximum Load Limit ............................... 361
Meters, Gauges ......................................... 106 Mirrors
...................................................... 160
Adjusting ................................................ 160
Door ....................................................... 161
Exterior ................................................... 161
Interior Rearview ..................................... 160
Modifications (and Accessories) .............. 528
Moonroof ................................................. 139
MP3 ................................................... 239, 251
MP3/WMA/AAC ................................ 239, 251
Multi-Information Display ....................... 107
Multi-View Rear Camera ......................... 475
N
Numbers (Identification)......................... 570
O
Odometer................................................. 108
Off-Highway Driving Guidelines ............. 377
Oil (Engine) .............................................. 492
Adding ................................................... 494
Checking ................................................ 493
Displaying Oil Life ................................... 485
Low Oil Pressure Indicator ................. 75, 551
Recommended Engine Oil ....................... 492
Viscosity.................................................. 492
Open Source Licenses .............................. 294

585
Index
Opening/ClosingHood ...................................................... 490
Moonroof ............................................... 139
Power Windows...................................... 135
Tailgate................................................... 128
Trunk ...................................................... 129
Outside Temperature Display ................. 109
Overheating ............................................. 549
P
Paddle Shifters (Sequential Mode) ... 20, 395
Pandora ®................................................. 249
Panic Mode ............................................... 134
Parking ..................................................... 466
Parking Brake ........................................... 462
Parking Brake and Brake System Indicator ........................................... 74, 553
Parking Sensor System ............................. 467
Passenger Airbag Off Indicator ................. 53
Passing Indicators ..................................... 145
Playing Bluetooth ® Audio ....................... 254
Power Windows ....................................... 135
Precautions While Driving ....................... 385
Driving Guidelines for Your Utility Vehicle .................................................. 385
Rain ........................................................ 385
Pregnant Women ....................................... 40
Puncture (Tire) ......................................... 533
R
Radiator.................................................... 498
Radio (FM/AM) .......................................... 228
Radio (SiriusXM ®) ..................................... 231
Radio Data System (RDS) .......................... 230
Range ........................................................ 110
RDS (Radio Data System) .......................... 230
Readiness Codes (Emissions Testing) ....... 573
Rear Climate Control System ................... 191
From the Rear Panel ................................ 192
Rear Defogger/Heated Door Mirror
Button ..................................................... 155
Rear Outer Seat Heaters .......................... 182
Rear Seats .................................................. 165
Rearview Mirror ........................................ 160
Refueling ................................................... 477
Fuel Gauge .............................................. 106
Gasoline .......................................... 477, 568
Low Fuel Indicator ..................................... 78
Regulations ............................... 410, 512, 571
Remote Engine Start ................................ 381
Remote Transmitter ................................. 121
Replacement Battery .................................................... 520
Bulbs ....................................................... 501
Fuses ............................... 556, 558, 559, 560
Tires ........................................................ 515
Wiper Blade Rubber ................................. 507
Reporting Safety Defects ......................... 572
RESET Button ............................................ 107
Resetting a Trip Meter ............................. 109 Reverse Tilt Door Mirror
.......................... 161
Road Departure Mitigation (RDM) ......... 454
Indicator.................................................... 86
On and Off.............................................. 456
S
Safe Driving ................................................ 29
Safety Check ............................................... 34
Safety Labels ............................................... 71
Safety Message ............................................. 1
Seat Belts .................................................... 35
Adjusting the Shoulder Anchor.................. 39
Automatic Seat Belt Tensioners ................. 37
Checking................................................... 41
Fastening .................................................. 38
Installing a Child Seat with a Lap/Shoulder
Seat Belt .................................................. 63
Pregnant Women ...................................... 40
Reminder .................................................. 36
Warning Indicator ............................... 36, 77
Seat Heaters .............................. 180, 181, 182
Seat Ventilation ........................................ 181
Seats .......................................................... 162
Adjusting ................................................ 162
Driver’s Seat Lumbar Support .................. 162
Front Seats .............................................. 162
Rear Seats ............................................... 165
Seat Heaters ............................ 180, 181, 182
Seat Ventilation ....................................... 181