engine HONDA RIDGELINE 2021 (in English) Owners Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 2021, Model line: RIDGELINE, Model: HONDA RIDGELINE 2021Pages: 597, PDF Size: 12.5 MB
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uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Driving
Press and hold the butt on until the beeper 
sounds to switch the system on or off.
When the CMBS
TM is off:
• The CMBSTM indicator in the instrument 
panel comes on.
• A message on the multi-information display 
reminds you that the system is off.
The CMBS
TM is turned on every time you start 
the engine, even if you turned it off the last 
time you drove the vehicle.
■CMBSTM On and Off1 Collision Mitigation Braking SystemTM (CMBSTM)
The CMBS
TM may automatically shut off, and the 
CMBSTM indicator will come and stay on under certain 
conditions:
2 CMBS
TM Conditions and Limitations  P. 430
Have your vehicle checked by a dealer if you find any 
unusual behavior of the system (e.g., the warning 
message appears too frequently). 
Page 455 of 597

uuHonda Sensing ®u Lane Keeping Assist System (LKAS)
454
Driving
3. Keep your vehicle near the center of the 
lane while driving.
u The dotted outer lines change to solid 
ones once the system starts operating 
after detecting the left and right lane 
markings.
Press the  MAIN or LKAS button.
The LKAS is turned off every time you stop the 
engine, even if you turned it on the last time 
you drove the vehicle.
■To Cancel1 To Cancel
Pressing the  MAIN button also turns ACC on and off.
MAIN Button
LKAS Button 
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469
uuBraking uBrake System
Driving
Your vehicle is equipped with disc brakes at all four wheels. A vacuum power assist 
helps reduce the effort needed on the brake pe dal. The brake assist system increases 
the stopping force when you depress the brake pedal hard in an emergency 
situation. The anti-lock brake system (ABS) helps you retain steering control when 
braking very hard.
2 Brake Assist System  P. 471
2 Anti-lock Brake System (ABS)  P. 470
■Foot Brake1Foot Brake
Check the brakes after driving through deep water, 
or if there is a buildup of road surface water. If 
necessary, dry the brakes by  lightly depressing the 
pedal several times.
If you hear a continuous me tallic friction sound when 
applying the brakes, this is  caused by the brake wear 
indicator rubbing on the  brake rotor and indicates 
that the brake pads need to be replaced. Have the 
vehicle checked by a deal er. If you hear only an 
occasional squeak or squeal  when you initially apply 
the brake pedal, this may be normal and caused by 
high frequency vibr ation of the brake pads against 
the rotating brake disc.
Constantly using the brake pedal while going down a 
long hill builds up heat, which reduces the brake 
effectiveness. Apply engine  braking by taking your 
foot off the accelerator pe dal and downshifting to a 
lower gear.
Do not rest your foot  on the brake pedal while 
driving, as it will lightly  apply the brakes and cause 
them to lose effectiveness  over time and reduce pad 
life. It will also conf use drivers behind you. 
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470
uuBraking uAnti-lock Brake System (ABS)
Driving
Anti-lock Brake System (ABS)
Helps prevent the wheels from locking up, a nd helps you retain steering control by 
pumping the brakes rapidly, much faster than you can.
The electronic brake distribution (EBD) system, which is part of the ABS, also 
balances the front-to-rear braking distri bution according to vehicle loading.
You should never pump the brake pedal.  Let the ABS work for you by always 
keeping firm, steady pressure on the brake pe dal. This is sometimes referred to as 
“stomp and steer.”
■ABS operation
The brake pedal may pulsate slightly when  the ABS is working. Depress the brake 
pedal and keep holding the pedal firmly dow n. On dry pavement, you will need to 
press on the brake pedal very hard before  the ABS activates. However, you may feel 
the ABS activate immediately if yo u are trying to stop on snow or ice.
ABS may activate when you depress  the brake pedal when driving on:
• Wet or snow covered roads.
• Roads paved with stone.
• Roads with uneven surfaces, such as potholes, cracks, manholes, etc.
When the vehicle speed goes unde r 6 mph (10 km/h), the ABS stops.
■ABS1Anti-lock Brake System (ABS)
NOTICE
The ABS may not function correctly if you use a tire of 
the wrong size or type.
If the ABS  indicator comes on while driving, there 
may be a problem with the system.
While normal braking will not  be affected, there is a 
possibility that the ABS wi ll not be operating. Have 
your vehicle checked by  a dealer immediately.
The ABS is not designed  for the purpose of reducing 
the time or distance it takes for a vehicle to stop: It is 
designed to limit brake lo ckup which can lead to 
skidding and loss of steering control.
In the following cases, yo ur vehicle may need more 
distance to stop than a vehicle without the ABS:
•You are driving on rough or uneven road surfaces, 
such as gravel or snow.
•The tires are equipped with tire chains.
The following may be observed with the ABS system:
•Motor sounds coming from the engine 
compartment when the brakes are applied, or 
when system checks are being performed after the 
engine has been  started and while the vehicle 
accelerates.
•Brake pedal and/or the vehicle body vibration when 
ABS activates.
These vibrations and sounds are normal to ABS 
systems and are no cause for concern. 
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472
Driving
Parking Your Vehicle
When Stopped
1.Depress the brake pedal firmly.
2. Apply the parking brake.
3. Put the transmission into 
(P.
4. Turn off the engine.
Always set the parking brake, in particular if you are parked on an incline.
1 Parking Your Vehicle
Do not park your vehicle  near flammable objects, 
such as dry grass, oil, or timber.
Heat from the exhaust can cause a fire.
3WARNING
The vehicle can roll aw ay if left unattended 
without confirming that Park is engaged.
A vehicle that rolls away could cause a crash 
resulting in seriou s injury or death.
Always keep your foot on the brake pedal 
until you have confirmed that 
( P is shown 
on the shift posi tion Indicator.
1When Stopped
NOTICE
The following can dama ge the transmission:•Depressing the accelerator and brake pedals 
simultaneously.
•Holding the vehicle in place when facing uphill by 
depressing the accelerator pedal.
•Putting the transmission into ( P before the vehicle 
stops completely.
In extremely cold temperatures, the parking brake 
may freeze up if applied. If such temperatures are 
expected, do not apply the  parking brake but, if 
parking on a slope, either turn the front wheels so 
they will contact the curb if the vehicle rolls down the 
slope or block the wheels  to keep the vehicle from 
moving. If you do not take either precaution, the 
vehicle may roll unexpect edly, leading to a crash. 
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482
uuMulti-View Rear Camera uAbout Your Multi-View Rear Camera
Driving
• If you were last using Wide view mode or Normal view mode, the same view 
mode will be activated the next time you put the transmission into 
(R.
• If you were using Top down view mode before you turned off the engine, Wide 
view mode will be activated the next time  you set the power mode to ON and put 
the transmission into 
(R.
• If you were using Top down view mode  and 10 seconds elapsed after you took 
the transmission out of 
(R, Wide view mode will be activated the next time you 
put the transmission into 
(R.
• If you were using Top down view mode and put the transmission back into 
(R 
within 10 seconds after you took it out of 
(R, Top down view mode will be 
activated. 
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483
Driving
Refueling
Fuel Information
■Fuel recommendation
Use of a lower octane gasoline can cause a  persistent, heavy metallic knocking noise 
that can lead to engine damage.
■Top tier detergent gasoline
Because the level of detergency and additive s in gasoline vary in the market, Honda 
endorses the use of “TOP TIER Detergent Gasoline” where available to help 
maintain the performance and reliability of your vehicle. TOP TIER Detergent 
Gasoline meets a new gasoline standard jointly established by leading automotive 
manufacturers to meet the needs of today’s advanced engines.
Qualifying gasoline retailers will, in most  cases, identify their gasoline as having met 
“TOP TIER Detergent Gasoline” standards  at the retail location. This fuel is 
guaranteed to contain the proper level of de tergent additives and be free of metallic 
additives. The proper level of detergent  additives, and absence of harmful metallic 
additives in gasoline, help avoid build-up of deposits in your engine and emission 
control system.
For further important fuel-related informati on for your vehicle, or on information on 
gasoline that does not contain MMT, vi sit www.hondacars.com. In Canada, visit 
www.honda.ca for additional information on  gasoline. For more information on top 
tier gasoline, visit  www.toptiergas.com .
■Fuel tank capacity: 19.5 US gal (73.8 L)
Unleaded gasoline, pump octane number 87 or higher
1Fuel Information
NOTICE
We recommend quality ga soline containing 
detergent additives that help  prevent fuel system and 
engine deposits. In  addition, in order to maintain 
good performance, fuel economy, and emissions 
control, we strongly reco mmend the use of gasoline 
that does NOT contain  harmful manganese-based 
fuel additives such as MMT, if such gasoline is 
available.
Use of gasoline with these additives may adversely 
affect performance, a nd cause the malfunction 
indicator lamp on your inst rument panel to come on. 
If this happens, contact a dealer for service. Some 
gasoline today is  blended with oxygenates such as 
ethanol. Your vehicle is  designed to operate on 
oxygenated gasoline containing up to 15% ethanol 
by volume. Do not use ga soline containing methanol. 
If you notice any undesira ble operating symptoms, try 
another service station or sw itch to another brand of 
gasoline. 
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484
uuRefueling uHow to Refuel
Driving
How to Refuel
Your fuel tank is not equipped with a fuel  filler cap. You can insert the filler nozzle 
directly into the filler neck. The tank seal s itself again when you pull out the filler 
nozzle.
1.Stop your vehicle with the service station 
pump on the left side of the vehicle in the 
rear.
2. Turn off the engine.
3. Press the fuel fill door release button.
u The fuel fill door opens.1How to Refuel
The fuel filler opening is designed to accept only 
service station filler nozzles for refueling. Use of 
smaller diamet er tubes (e.g., those used to siphon 
fuel for other uses) or  other non-service station 
devices can damage the area  in and around the filler 
opening.
The filler nozzle automatically stops to leave space in 
the fuel tank so that fuel does not overflow as a result 
of changes in air temperature.
Do not continue to add fuel  after the filler nozzle has 
automatically stopped. Addi tional fuel can exceed 
the full tank capacity.
3WARNING
Gasoline is highly flammable and explosive. 
You can be burned or seriously injured 
when handling fuel.
• Stop the engine, and  keep heat, sparks, 
and flame away.
• Handle fuel only outdoors.
• Wipe up spills immediately.
Press 
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486
Driving
Fuel Economy and CO2 Emissions
Improving Fuel Economy and Reducing CO2 
Emissions
Achieving fuel economy and reducing CO2 emissions is dependent on several 
factors, including driving conditions, load weight, idling time, driving habits, and 
vehicle condition. Depending on these and other factors, you may not achieve the 
rated fuel economy of this vehicle.
You can optimize your fuel economy with  proper maintenance of your vehicle. 
Always maintain your vehicle in accord ance with the messages displayed on the 
multi-information display.
• Use engine oil with the viscosity recommended.
2 Recommended Engine Oil P. 499
•Maintain the specified tire pressure.
• Do not load the vehicl e with excess cargo.
• Keep your vehicle clean. A buildup of snow or mud on your vehicle’s underside 
adds weight and increases wind resistance.
■Maintenance and Fuel Economy
1Improving Fuel Economy and Reducing CO2 Emissions
Direct calculation is the recommended method to 
determine actual fuel consumed while driving.
In Canada, posted fuel  economy numbers are 
established following a simulated test. For more 
information on how this test  is performed, please visit 
https://www.nrcan.gc.ca  and search for “fuel 
consumption testing” in the search field at the top of 
the page.
Miles driven Gallons of 
fuel Miles per 
Gallon
100 Liters of 
fuel Kilometers 
driven L per 100 km 
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487
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 488
Safety When Performing Maintenance ... 489
Parts and Fluids Used in Maintenance Service ........................................... 490
Maintenance Minder
TM..................... 491
Maintenance Under the Hood Maintenance Items Under the Hood .... 496
Opening the Hood ........................... 497
Engine Compartment Cover ............. 498
Recommended Engine Oil ................ 499
Oil Check ......................................... 500
Adding Engine Oil ............................ 501
Changing the Engine Oil and Oil Filter ...502 Engine Coolant ................................ 504
Transmission Fluid ............................ 506
Brake Fluid ....................................... 507
Refilling Window Wa
sher Fluid......... 507
Replacing Light Bulbs ....................... 508Checking and Maintaining Wiper 
Blades .......................................... 514
Checking and Maintaining Tires
Checking Tires ................................. 516
Tire and Loading Information Label ... 517
Tire Labeling .................................... 517
DOT Tire Quality Grading (U.S. Vehicles) .... 519Wear Indicators................................ 521 Tire Service Life ................................ 521
Tire and Wheel Replacement ........... 522
Tire Rotation .................................... 523
Winter Tires ..................................... 524
Battery ............................................... 525
Remote Transmitter Care Replacing the Button Battery ........... 527
Climate Control System Maintenance.......528CleaningInterior Care .................................... 529
Exterior Care.................................... 531
Accessories and Modifications ........ 535