2018 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

525
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
Automatic Transmission Fluid Dipstick

533
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.Remove the engine compartment cover.
2 Engine Compartment Cover P. 527
2.Check the amount of coolant in the reserve
tank.
3. 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 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. They may not be compatible
with the coolant or with the engine components.
MAX
MIN

uuMaintenance Under the Hood uEngine Coolant
534
Maintenance
1. Make sure the engine and radiator are
cool.
2. Remove the engine compartment cover.
2 Engine Compartment Cover P. 527
3.Turn the radiator cap counterclockwise and
relieve any pressure in the cooling system.
Do not push the cap down when turning.
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.
7. Pour coolant into the reserve tank until it
reaches the MAX mark. Put the cap back
on the reserve tank.
■Radiator1 Radiator
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.
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.Radiator
Cap

uuOverheating uHow to Handle Overheating
584
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the temperature
gauge needle 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, remove the engine compartment
cover then add coolant until it reaches
the MAX mark.
2Engine Compartment Cover P. 527
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

613
Index
Collision Mitigation Braking SystemTM
(CMBSTM) ................................................. 492
Indicator ............................................. 88, 89
Compact Spare Tire .......................... 567, 601
Console Compartment ............................. 174
Controls .................................................... 109
Conversation Mirror ................................ 179
Coolant (Engine) ...................................... 533
Adding to the Radiator ........................... 534
Adding to the Reserve Tank .................... 533
Overheating ............................................ 583
Creeping (Automatic Transmission) ........ 439
Cross Traffic Monitor ............................... 506
Cruise Control .......................................... 445
Indicator ................................................... 82
Cup Holders .............................................. 175
Customer Service Information ................ 610
Customized Features ............................... 317
D
Daytime Running Lights .......................... 150
Dead Battery ............................................ 579
Defaulting All the Settings ...................... 347
Defogger/Heated Door Mirror ................ 156
Defrosting the Windshield and Windows ......................................... 189, 198
Devices that Emit Radio Waves ............... 603
Dimming Headlights .............................................. 146
Rearview Mirror ...................................... 161 Dipstick (Engine Oil)
................................. 529
Directional Signals (Turn Signal) ............. 145
Display Button .......................................... 225
Door Mirrors ............................................. 162
Doors ......................................................... 111
Auto Door Locking .................................. 124
Auto Door Unlocking ............................... 124
Door Open Message ............................ 34, 91
Keys ........................................................ 111
Locking/Unlocking the Doors from the Inside ................................ 14, 121
Locking/Unlocking the Doors from the Outside ................................... 114
Lockout Prevention System ...................... 120
DOT Tire Quality Grading ........................ 548
Driving ....................................................... 409
Adaptive Cruise Control (ACC) ................ 455
Automatic Transmission ........................... 439
Braking .................................................... 488
Cruise Control ......................................... 445
Off-Highway Driving Guidelines ............... 430
Starting the Engine .................................. 432
Driving Guidelines for Your Utility Vehicle ..................................................... 438
Driving Position Memory System ............. 158
Dust and Pollen Filter ............................... 556
E
ECON Button............................................. 442
ECON Mode Indicator ................................ 87 Electric Power Steering (EPS) System
Indicator............................................ 80, 587
Electronic Stability Control (ESC) ............. 476
Emergency ................................................ 594
Emergency Trunk Opener ........................ 132
Emissions Testing (Readiness Codes) ....... 605
Engine ....................................................... 602
Coolant ................................................... 533
Jump Starting .......................................... 579
Oil ........................................................... 528
Remote Engine Start................................ 434
Starting ................................................... 432
Engine Compartment Cover .................... 527
Engine Coolant ......................................... 533
Adding to the Radiator ............................ 534
Adding to the Reserve Tank..................... 533
Overheating ............................................ 583
Temperature Gauge ................................ 103
Engine Oil ................................................. 528
Adding .................................................... 530
Checking................................................. 529
Displaying Oil Life .................................... 521
Low Oil Pressure Indicator ................. 75, 585
Recommended Engine Oil ....................... 528
ENGINE START/STOP Button .................... 142
EPS (Electric Power Steering) System ............................................... 80, 587
Exhaust Gas Hazard
(Carbon Monoxide) .................................. 70
Exterior Care (Cleaning) ........................... 559
Exterior Mirrors ........................................ 162

616
Index
L
Lane Keeping Assist System (LKAS)......... 468
Indicator .................................................... 86
LaneWatch
TM............................................. 486
Language (HFL) ................................. 352, 378
LATCH (Child Seats) .............................. 60, 65
Lights ................................................. 146, 537
Automatic ............................................... 147
Bed.......................................................... 186
Bulb Replacement .................................... 537
Daytime Running Lights ........................... 150
High Beam Indicator .................................. 80
Interior .................................................... 171
Light Switches ......................................... 146
Lights On Indicator .................................... 81
Turn Signals ............................................. 145
Load Limits ................................................ 413
Locking/Unlocking .................................... 111
Auto Door Locking/Unlocking .................. 124
Childproof Door Locks ............................. 123
From Inside .............................................. 121
From Outside ........................................... 114
Keys ........................................................ 111
Using a Key ............................................. 120
Lockout Prevention System ...................... 120
Low Battery Charge .................................. 585
Low Fuel Indicator ...................................... 77
Low Oil Pressure Indicator ................. 75, 585
Low Tire Pressure Indicator ........................ 80
Lower Anchors ...................................... 60, 65
Lubricant Specifications Chart ................. 601Luggage (Maximum Load Limit)
............. 413
Lumbar Support ....................................... 163M
Maintenance............................................. 517
Battery .................................................... 554
Brake Fluid .............................................. 536
Cleaning ................................................. 557
Climate Control System ........................... 556
Coolant ................................................... 533
Heating and Cooling System ................... 556
Maintenance Minder
TM............................ 521
Oil ........................................................... 529
Precautions ............................................. 518
Radiator .................................................. 534
Remote Transmitter ................................. 555
Replacing Light Bulbs .............................. 537
Safety...................................................... 519
Service Items ........................................... 523
Tires ........................................................ 545
Transmission Fluid ................................... 535
Under the Hood ...................................... 525
Malfunction Indicator Lamp .............. 75, 586
Map Lights ................................................ 172
Maximum Load Limit ............................... 413
Meters, Gauges ......................................... 103
Mirrors ...................................................... 161
Adjusting ................................................ 161
Door ....................................................... 162
Exterior ................................................... 162 Interior Rearview ..................................... 161
Modifications (and Accessories) .............. 563
Moonroof ................................................. 140
MP3 ........................................... 218, 261, 273
MP3/WMA/AAC ........................ 218, 261, 273
Multi-Information Display ....................... 104
Multi-View Rear Camera ......................... 510
N
Numbers (Identification)......................... 602
O
Odometer................................................. 105
Off-Highway Driving Guidelines ............. 430
Oil (Engine) .............................................. 528
Adding ................................................... 530
Checking ................................................ 529
Displaying Oil Life ................................... 521
Low Oil Pressure Indicator ................. 75, 585
Recommended Engine Oil ....................... 528
Viscosity.................................................. 528
Open Source Licenses .............................. 316
Opening/Closing Hood ...................................................... 526
Moonroof ............................................... 140
Power Windows...................................... 136
Tailgate................................................... 128
Trunk ...................................................... 130
Outside Temperature Display ................. 106

617
Index
Overheating............................................. 583
P
Pandora®.................................................. 271
Panic Mode ............................................... 135
Parking ..................................................... 501
Parking Brake ........................................... 488
Parking Brake and Brake System Indicator ........................................... 74, 587
Parking Sensor System ............................. 502
Passenger Airbag Off Indicator ................. 53
Passing Indicators ..................................... 146
Playing Bluetooth ® Audio ............... 221, 276
Power Windows ....................................... 136
Precautions While Driving ....................... 438
Driving Guidelines for Your Utility Vehicle .................................................. 438
Rain ........................................................ 438
Pregnant Women ....................................... 40
Puncture (Tire) ......................................... 567
R
Radiator.................................................... 534
Radio (FM/AM) ................................. 213, 249
Radio (SiriusXM ®)..................................... 253
Radio Data System (RDS) ................. 214, 251
Range ........................................................ 107
RDS (Radio Data System) ................. 214, 251
Readiness Codes (Emissions Testing) ...... 605Rear Climate Control System
From the Rear Panel ................................ 193
Rear Defogger/Heated Door Mirror Button ..................................................... 156
Rear Outer Seat Heaters .......................... 183
Rear Seats .................................................. 166
Rearview Mirror ........................................ 161
Refueling ................................................... 512
Fuel Gauge .............................................. 103
Gasoline .......................................... 512, 600
Low Fuel Indicator ..................................... 77
Regulations ............................... 482, 548, 603
Remote Engine Start ................................ 434
Remote Transmitter ................................. 119
Replacement Battery .................................................... 555
Bulbs ....................................................... 537
Fuses ....................................... 589, 591, 592
Tires ........................................................ 551
Wiper Blade Rubber ................................. 543
Reporting Safety Defects ......................... 604
RESET Button ............................................ 104
Resetting a Trip Meter ............................. 106
Reverse Tilt Door Mirror .......................... 162
Road Departure Mitigation (RDM) .......... 450
Indicator .................................................... 84
On and Off .............................................. 452
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 wi th a Lap/Shoulder Seat
Belt ......................................................... 63
Pregnant Women ...................................... 40
Reminder .................................................. 36
Warning Indicator ............................... 36, 76
Seat Heaters .............................. 181, 182, 183
Seat Ventilation ........................................ 182
Seats .......................................................... 163
Adjusting ................................................ 163
Driver’s Seat Lumbar Support .................. 163
Front Seats .............................................. 163
Rear Seats ............................................... 166
Seat Heaters ............................ 181, 182, 183
Seat Ventilation ....................................... 182
Security System ......................................... 133
Immobilizer System Indicator ..................... 81
Security System Alarm Indicator................. 82
Selecting a Child Seat ................................. 59
Selector Knob (Audio) .............................. 206
Setting the Clock ...................................... 110