2018 HONDA RIDGELINE engine coolant

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

Continued561
uuCleaning uExterior Care
Maintenance
If you get gasoline, oil, engine coolant, or battery fluid on resin coated parts, they
may be stained or the coating may peel. Prom ptly wipe it away using a soft cloth and
clean water.
Wipe using a glass cleaner.
Aluminum is susceptible to deterioration caused by salt and other road
contaminants. Use a sponge and mild detergent to wipe away promptly.
Be careful not to use harsh chemicals (inc luding some commercial wheel cleaners) or
a stiff brush. They can damage the clear coat of the aluminum alloy wheels that help
keep the aluminum from corroding and tarnishing.
■Maintaining the Bumpers and Other Resin Coated Parts
■Cleaning the Window
■Maintaining Aluminum Wheels
1 Maintaining the Bumpers an d Other Resin Coated Parts
Ask a dealer about the correct coating material when
you want to repair the pa inted surface of the parts
made of resin.

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

601
uuSpecifications u
Information
■Brake Fluid
■ Automatic Transmission Fluid
■ Rear Differential Fluid
*
■Transfer Assembly Fluid*
SpecifiedHonda Heavy Duty Brake Fluid DOT 3
SpecifiedHonda ATF DW-1 (automatic transmission fluid)
Capacity Change 3.3 US qt (3.1 ℓ)
SpecifiedHonda All Wheel Drive Fluid (DPSF-II)
Capacity Change 1.92 US qt (1.82 ℓ)
Specified·Honda Hypoid Gear Oil HGO-1
·Hypoid gear oil SAE 75W-85 or SAE 90 (API
grade GL4 or GL5)
Capacity Change 0.45 US qt (0.43 ℓ)
■ Engine Oil
■ Engine Coolant
Recommended·Genuine Honda Motor Oil 0W-20
·API Premium-grade 0W-20 detergent oil
Capacity Change 5.4 US qt (5.1 ℓ)
Change
including
filter
5.7 US qt (5.4 ℓ)
SpecifiedHonda Long Life Antifreeze/Coolant Type 2
Ratio 50/50 with distilled water
Capacity1.88 US gal (7.13 ℓ)
(change including the remaining 0.19 US gal
(0.72 ℓ) in the reserve tank)
■ Tire
RegularSize245/60R18 105HPressure
psi (kPa [kgf/cm2])35 (240 [2.4])
Compact
Spare Size
T165/90R17 105M
Pressure
psi (kPa [kgf/cm
2]) 60 (420 [4.2])
Wheel SizeRegular18 x 8JCompact Spare17 x 4T
* Not available on all models

Index
611
Index
Index
A
ABS (Anti-lock Brake System).................. 490
AC Power Outlet ...................................... 184
Accessories and Modifications ................ 563
Accessory Power Sockets ......................... 177
Adaptive Cruise Control (ACC) ................ 455
Indicator ................................................... 85
Additives
Coolant .................................................. 533
Engine Oil ............................................... 528
Washer ................................................... 536
Adjusting Armrest .................................................. 170
Front Seats.............................................. 163
Head Restraints ............................... 168, 169
Mirrors.................................................... 161
Rear Seats ............................................... 166
Steering Wheel ....................................... 160
Temperature ........................................... 106
Agile Handling Assist ............................... 478
Air Conditioning System (Climate Control System) ....................... 188
Changing the Mode................................ 189
Defrosting the Windshield and Windows .............................................. 189
Dust and Pollen Filter .............................. 556
Recirculation/Fresh Air Mode................... 189
Sensor .................................................... 194
Synchronized Mode ................................ 191
Using Automatic Climate Control............ 188 Air Conditioning System
(Heating and Cooling System) ............... 195
Cooling ................................................... 197
Defrosting the Windshield and Windows ............................................... 198
Heating ................................................... 196
Air Pressure ....................................... 546, 601
Airbags ........................................................ 42
Advanced Airbags ..................................... 48
After a Collision ......................................... 46
Airbag Care ............................................... 54
Front Airbags (SRS) .................................... 45
Indicator .............................................. 52, 77
Passenger Airbag Off Indicator .................. 53
Sensors ...................................................... 42
Side Airbags .............................................. 49
Side Curtain Airbags .................................. 51
All-wheel drive (AWD) Indicator ............... 83
AM/FM Radio .................................... 213, 249
Android Auto ............................................ 289
Anti-lock Brake System (ABS) .................. 490
Indicator .................................................... 77
Apple CarPlay ........................................... 286
Armrest ..................................................... 170
Audio Remote Controls ............................ 204
Audio System ............................................ 200
Adjusting the Sound ........................ 211, 242
Audio/Information Screen ................ 207, 225
Auxiliary Input Jack .................................. 202
Changing the Home Screen Icon Layout ................................................... 229 Closing Apps ........................................... 239
Display Setup .................................. 212, 243
Error Messages ........................................ 294
General Information ................................ 298
Home Screen........................................... 232
Limitations for Manual Operation ............ 244
MP3/WMA/AAC ...................... 218, 261, 273
Playing a CD............................................ 261
Reactivating ............................................ 203
Recommended CDs ................................. 299
Remote Controls ..................................... 204
Security Code .......................................... 203
Selecting an Audio Source ....................... 244
Status Area ............................................. 238
Theft Protection ...................................... 203
USB Flash Drives ...................................... 301
USB Port.................................................. 201
Wallpaper Setup.............................. 209, 230
Audio/Information Screen ............... 207, 225
Authorized Manuals ................................ 609
Auto Door Locking/Unlocking ................. 124
Customize ............................................... 340
Auto High-Beam ....................................... 151
Auto high-beam Indicator ......................... 81
Automatic Intermittent Wipers ............... 155
Automatic Lighting .................................. 147

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