2020 HONDA RIDGELINE oil

521
Maintenance
Climate Control System Maintenance
Air Conditioning
To ensure proper and safe operation, the Society of Automotive Engineers (SAE
J2845) recommends that the refrigerant sy stem only be serviced by trained and
certified technicians.
Never repair or replace the air conditio ning evaporator (cooling coil) with one
removed from a used or salvaged vehicle.
New replacement mobile air conditioning evaporators must be certified (and
labeled) as meeting SAE Standard J2842.
Dust and Pollen Filter
The climate control system is equipped with a dust and pollen filter that collects
pollen, dust, and other debris in the air. The Maintenance MinderTM messages will let
you know when to replace the filter.
We recommend that you repl ace the dust and pollen filter sooner when using your
vehicle in areas with high concentrations of dust.
1 Climate Control System Maintenance
NOTICE
Vented refrigerant is harmful to the environment.
To avoid refrigerant from venting, never replace the
evaporator with one re moved from a used or
salvaged vehicle.
Refrigerant in your vehicle’ s air conditioning system is
flammable and can be igni ted during servicing if
proper procedures are not followed.
The air conditioner labe l is found under the hood:
2 Safety Labels P. 71
2 Specifications P. 568
Canadian models
: Caution
: Flammable Refrigerant
: Requires Registered
Technician to Service
: Air Conditioning
System
1Dust and Pollen Filter
If the airflow from the climate control system
deteriorates noticeably, and the windows fog up
easily, the filter may need to be replaced. Please
contact a dealer for replacement.

uuCleaning uExterior Care
526
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 deteriorat ion caused by salt and other road
contaminants. When necessary, as early as possible use a sponge and mild detergent
to wipe away these contaminants. Do no t use a stiff brush or harsh chemicals
(including some commercial wheel cleaners).
These can damage the protective finish on aluminum alloy wheels, resulting in
corrosion. Depending on the type of finish, the wheels also may lose their luster or
appear burnished. To avoid water stains, wi pe the wheels dry with a cloth while they
are still wet.
■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 corr ect coating material when
you want to repair the pa inted surface of the parts
made of resin.

531
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 532
If a Tire Goes Flat Changing a Flat Tire ......................... 533
Engine Does Not Start
Checking the Engine ........................ 543
If the Smart Entry Remote Battery is Weak .......................................... 544
Emergency Engine Stop ................... 545
Jump Starting .................................... 546
Overheating How to Handle Overheating ............. 549 Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes
On ............................................. 551
If the Charging System Indicator Comes
On ................................................. 551
If the Malfunction Indicator Lamp Comes On or Blinks ................................... 552
If the Brake System Indicator (Red) Comes On .................................................... 553
If the Electric Power Steering (EPS) System
Indicator Comes On ........................... 553
If the Low Tire Pressure/Tire Pressure Monitoring System (TPMS) Indicator Comes
On or Blinks ....................................... 554 If the Transmission System Indicator Blinks
along with the Warning Message ....... 555
Fuses
Fuse Locations ................................. 556
Inspecting and Changing Fuses ........ 561
Emergency Towing ........................... 562
When You Cannot Unlock the Fuel Fill Door ................................................. 563
When You Cannot Unlock the Tailgate .. 564
RefuelingRefueling From a Portable Fuel
Container ................................... 565

551
Handling the Unexpected
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On
■Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
■What to do as soon as the indicator comes on
1. Immediately park the vehicle on level ground in a safe place.
2. If necessary, turn the hazard warning lights on.
■What to do after parking the vehicle
1. Stop the engine and let it sit for approximately three minutes.
2. Open the hood and check the oil level.
u Add oil as necessary.
2 Oil Check P. 493
3.Start the engine and check th e low oil pressure indicator.
u The indicator goes off: Start driving again.
u The indicator does not go off with in 10 seconds: Immediately stop
the engine and contact a dealer for repairs.
If the Charging System Indicator Comes On
■Reasons for the indicator to come on
Comes on when the battery is not being charged.
■What to do when th e indicator comes on
Turn off the climate control system, rear defogger, and other electrical
systems, and immediately co ntact a dealer for repairs.
1If the Low Oil Pressure Indicator Comes On
NOTICE
Running the engine with low oil pressure can cause
serious mechanical damage almost immediately.
1If the Charging System Indicator Comes On
If you need to stop temporarily, do not turn off the
engine. Restarting the engi ne may rapidly discharge
the battery.

557
uuFuses uFuse Locations
Continued
Handling the Unexpected
■Circuit protected and fuse rating
Circuit ProtectedAmps
1
−(70 A)*1
AC INVERTER70 A*2
RR BLOWER30 A*1
−(30 A)*2
VSA MTR40 A
VSA FSR20 A
MAIN FAN30 A*1
−(30 A)*2
MAIN FUSE150 A
2
SUB FAN30 A
WIP MTR30 A
WASHER20 A
T/G LOCK MAIN20 A
ACM30 A
FR BLOWER40 A
AUDIO AMP30 A
RR DEF30 A*1
−(30 A)*2
−(40 A)
−(30 A)*1
RR DEF30 A*2
−(20 A)
3
−−*1
RR BLOWER30 A*2
−−*1
−(30 A)*2
−−*1
−(30 A)*2
−−*1
MAIN FAN30 A*2
4SMALL 10 A*1
STOP
10 A*2
5T/G LOCK10 A
6 STOP 10 A*1
SMALL
10 A*2
7T/G UNLOCK10 A
8 L H/L LO 10 A*1
IGPS
7.5 A*2
9CRUISE CANCEL SW7.5 A
10 R H/L LO 10 A*1
L H/L LO
10 A*2
11IGPS7.5 A*1
R H/L LO10 A*2
12INJECTOR 20 A*1
IG COIL
15 A*2
13H/L LO MAIN20 A*1
DBW15 A*2
14−−*1
AC INVERTER RLY 15 A*2
Circuit ProtectedAmps
*1:Models without the AC power outlet
*2:Models with the AC power outlet
15FR FOG(15 A)*1
BACK UP10 A*2
16HAZARD 15 A*1
MAIN RLY 15 A*2
17AS P/SEAT (REC)(20 A)
18 AS P/SEAT (SLI) (20 A)
19TCU15 A
20 MG CLUTCH 7.5 A
21MAIN RLY15 A*1
HAZARD15 A*2
22 FI SUB 15 A
23IG COIL15 A*1
INJECTOR20 A*2
24DBW 15 A*1
H/L LO MAIN 20 A*2
25SMALL/STOP MAIN20 A
26 BACK UP 10 A*1
FR FOG
15 A*2
27H/STEERING WHEEL(10 A)
28 HORN 10 A
29VBUM10 A
Circuit ProtectedAmps

569
uuSpecifications u
Information
■
Brake Fluid
■ Automatic Tran smission Fluid
■ Rear Differential Fluid
*
■Transfer Assembly Fluid*
SpecifiedHonda Heavy Duty Brake Fluid DOT 3
SpecifiedHonda ATF-TYPE 3.1 or higher
Capacity Change 3.7 US qt (3.5 L)
SpecifiedHonda DPSF-II
Capacity Change 1.92 US qt (1.82 L)
SpecifiedHonda HGO-1
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
Capacity1.96 US gal (7.40 L)
(change including the remaining 0.22 US gal
(0.82 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
579
Index
Index
A
ABS (Anti-lock Brake System).................. 464
AC Power Outlet ...................................... 183
Accessories and Modifications ................ 528
Accessory Power Sockets ......................... 178
Adaptive Cruise Control (ACC) ................ 432
Indicator ................................................... 87
Additives
Coolant .................................................. 497
Engine Oil ............................................... 492
Washer ................................................... 500
Adjusting Armrest .................................................. 170
Front Seats.............................................. 162
Head Restraints ............................... 167, 168
Mirrors.................................................... 160
Rear Seats ............................................... 165
Steering Wheel ....................................... 159
Temperature ........................................... 109
Agile Handling Assist ............................... 406
Air Conditioning System (Climate Control System) ....................... 187
Changing the Mode................................ 187
Defrosting the Windshield and Windows .............................................. 188
Dust and Pollen Filter .............................. 521
Recirculation/Fresh Air Mode................... 188
Sensor .................................................... 193
Synchronized Mode ................................ 190
Using Automatic Climate Control............ 187
Air Pressure ...................................... 510, 569 Airbags
........................................................ 42
Advanced Airbags ..................................... 48
After a Collision ......................................... 46
Airbag Care ............................................... 54
Front Airbags (SRS) .................................... 45
Indicator .............................................. 52, 78
Passenger Airbag Off Indicator .................. 53
Sensors ...................................................... 42
Side Airbags .............................................. 49
Side Curtain Airbags .................................. 51
All-wheel drive (AWD) Indicator ............... 84
AM/FM Radio ............................................ 228
Android Auto ............................................ 267
Anti-lock Brake System (ABS) .................. 464
Indicator .................................................... 78
Apple CarPlay ........................................... 264
Armrest ..................................................... 170
Audio Remote Controls ............................ 201
Audio System ............................................ 196
Adjusting the Sound ................................ 221
Audio/Information Screen ........................ 204
Auxiliary Input Jack .................................. 199
Changing the Home Screen Icon Layout ................................................... 208
Closing Apps ........................................... 218
Display Setup ........................................... 222
Error Messages ........................................ 272
General Information ................................ 276
Home Screen ........................................... 211
Limitations for Manua l Operation ............ 223
MP3/WMA/AAC .............................. 239, 251 Playing a CD............................................ 239
Reactivating ............................................ 200
Recommended CDs ................................. 277
Remote Controls ..................................... 201
Security Code .......................................... 200
Selecting an Audio Source ....................... 223
Status Area ............................................. 217
Theft Protection ...................................... 200
Truck Bed Audio...................................... 271
USB Flash Drives .............................. 251, 279
USB Port.................................................. 197
Wallpaper Setup...................................... 209
Audio/Information Screen ....................... 204
Authorized Manuals ................................ 577
Auto Door Locking/Unlocking ................. 126
Customize ....................................... 311, 312
Auto High-Beam ....................................... 150
Indicator.................................................... 82
Auto Idle Stop .......................................... 399
OFF Button .............................................. 400
Auto Idle Stop Indicator (Green) ............... 85
Auto Idle Stop System Indicator
(Amber) ..................................................... 85
Automatic Intermittent Wipers ............... 154
Automatic Lighting .................................. 146
Automatic Transmission .........

.................. 387
Creeping ................................................. 387
Fluid ........................................................ 499
Kickdown ................................................ 387
Operating the Shift Button ...................... 390
Shifting ................................................... 388

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