engine HONDA RIDGELINE 2021 (in English) Repair Manual

315
uuCustomized Features u
Continued
Features
*1:Default SettingSetup
Group Customizable Features Description Selectable Settings
Vehicle
Door
SetupAuto Door Unlock
Changes the setting for when the doors unlock
automatically. All Doors with
Driver’s Door
Opens
*1/
All Doors
with Shift to P /All
Doors with IGN Off /
Off
Key and Remote Unlock
Mode Sets up either the driver’s
door or all doors to unlock
on the first push of the remote or built-in key. Driver Door
*1/
All
Doors
Keyless Lock Answer Back LOCK/UNLOCK- The exterior lights flash.
LOCK (2nd push)- The beeper sounds. On
*1/
Off
Security Relock Timer Changes the time it takes for the doors to relock
and the security system to set after you unlock
the vehicle without opening any door.
90 sec
/60 sec /30 sec
*1
Tailgate Power Locking Changes the setting for
the tailgate locking
feature. Enable
/Disable*1
Wireless Charging*Turns the wireless charger feature on and off.ON*1/ OFF
Maintenance InfoResets the engine oil life display when you have
performed the maintenance service.—
DefaultCancels/Resets all customized items in the
Vehicle group as default.Yes/No
* Not available on all models

363
Driving
This chapter discusses driving and refueling.
Before Driving................................... 364
Towing a Trailer ................................ 372
Off-Highway Driving Guidelines ..... 383
When Driving Starting the Engine .......................... 385
Precautions While Driving................. 392
Automatic Transmission ................... 394
Shifting ............................................ 395
ECON Mode .................................... 403
Intelligent Traction Management...... 404
Auto Idle Stop .................................. 406
Vehicle Stability AssistTM (VSA ®), aka Electronic
Stability Control (ESC), System ..............412
Agile Handling Assist ....................... 414 Intelligent Variable To
rque Management (i-
VTM4
TM) AWD System*.................. 415
Tire Pressure Monitoring System (TPMS) with Tire Fill Assist .......................... 416
Tire Pressure Monitoring System (TPMS) -
Required Federal Explanation ......... 418
Blind spot information System
*........... 420
Honda Sensing ®................................ 423
Collision Mitigati on Braking System
TM
(CMBSTM) ....................................... 426
Adaptive Cruise Control (ACC)......... 438
Lane Keeping Assist System (LKAS).... 451
Road Departure Mitigation System ... 460
Front Sensor Camera ....................... 465 Radar Sensor ................................... 467
Braking Brake System ................................... 468
Anti-lock Brake System (ABS) ........... 470
Brake Assist System ......................... 471
Parking Your Vehicle When Stopped ................................ 472
Parking Sensor System
*................... 473
Cross Traffic Monitor*..................... 477
Multi-View Rear Camera .................. 481
Refueling Fuel Information .............................. 483
How to Refuel ................................. 484
Fuel Economy and CO
2 Emissions .... 486
* Not available on all models

364
Driving
Before Driving
Driving Preparation
Check the following items before you start driving.
• Make sure there are no obstructions on the windows, door mirrors, exterior
lights, or other parts of the vehicle.
u Remove any frost, snow, or ice.
u Remove any snow on the roof, as this can slip down and obstruct your field of
vision while driving. If frozen solid , remove ice once it has softened.
u When removing ice from around the wheels, be sure not to damage the wheel
or wheel components.
• Make sure the hood is securely closed.
u If the hood opens while driving, your front view will be blocked.
• Make sure the tires are in good condition.
u Check air pressures, and check for damage and excessive wear.
2Checking and Maintaining Tires P. 516
•Make sure the tailgate is fully closed when it is not being used as an extended
pickup bed.
• Make sure the trunk is secu rely closed and locked.
• Make sure there are no people or ob jects behind or around the vehicle.
u There are blind spots from the inside.
■Exterior Checks1Exterior Checks
NOTICE
When doors are frozen s hut, use warm water around
the door edges to melt any ice. Do not try to force
them open, as this can damage the rubber trim
around the doors. When done, wipe dry to avoid
further freezing.
Do not pour warm water into the key cylinder.
You will be unable to insert the key if the water
freezes in the hole.
Heat from the engine and exhaust can ignite
flammable material s left under the hood, causing a
fire. If you’ve parked y our vehicle for an extended
period, inspect and remove any debris that may have
collected, such as dried grass and leaves that have
fallen or have been carried in for use as a nest by a
small animal. Also check under the hood for leftover
flammable materials after you or someone else has
performed maintenance on your vehicle.

372
Driving
Towing a Trailer
Towing Preparation
Your vehicle can tow a trailer if you carefully observe the load limits, use the proper
equipment, and follow the towing guidelin es. Check the load limits before driving.
■Total trailer weight
Do not exceed the maximum allowable
weight of the trailer, cargo, and everything in
or on it shown in the table.
Towing loads in excess of this can seriously
affect vehicle handling and performance and
can damage the engine and drivetrain.
Each weight limit is calculated based on the following conditions:
• Occupants fill seats from the fro nt of the vehicle to the back
• Each occupant weights 150 lbs (68 kg)
• Each occupant has 17.6 lbs (8 kg) of cargo in the cargo area
Any additional weight, cargo or accessori es reduce the maximum trailer weight and
maximum tongue load.
■Towing Load Limits1 Towing Load Limits
Check if all loads are within limits at a public scale.
If a public scale is not av ailable, add the estimated
weight of your cargo load to the weight of your
trailer (as quoted by the manufacturer), and then
measure the tongue load with an appropriate scale or
tongue gauge or estima te it based on cargo
distribution.
Refer to the trailer owner’s manual for additional
information.
Break-in Period.
Avoid towing a trailer duri ng your vehicle’s first 600
miles (1,000 km).
Never exceed the gross weight ratings.
Gross weight information 2 Vehicle Specifications P. 574
3WARNING
Exceeding any load limit or improperly
loading your vehicle and trailer can cause a
crash in which you can be seriously hurt or
killed.
Check the loading of your vehicle and
trailer carefully before starting to drive.
Total Load
Number of
occupantsAWD models2WD models
25,000 lbs (2,267 kg)3,500 lbs (1,587 kg)
34,875 lbs (2,211 kg)3,375 lbs (1,531 kg)
44,750 lbs (2,154 kg)3,250 lbs (1,474 kg)
54,500 lbs (2,041 kg)3,000 lbs (1,360 kg)

377
uuTowing a Trailer uTowing Preparation
Continued
Driving
Have a qualified mechanic install your trailer
brake controller following the trailer brake
controller manufacturer’s instructions. Failure
to properly install the trailer brake controller
may increase the distance it takes for you to
stop your vehicle when towing a trailer.
The trailer hitch harness is used to install the
controller for the electric trailer brakes.
Insert the trailer brake fuse into the engine
compartment sub fuse box.
2 Engine Compartment Fuse Box Type B
P. 564
Electric Brake
(Brown)
Ground
(Black) +B (Light
Green) (20A)
Stop
(Violet)
Trailer brake controller
connector’s terminals:
Electric Brake
(Brown)
+B (20A)
(Blue)
Ground
(Black)
Brake Lights
(Sky Blue)

380
uuTowing a Trailer uTrailer Stability Assist
Driving
Trailer Stability Assist
Helps to stabilize the vehicle and tra iler when the trailer severely sways.
■How trailer stability assist works
When the vehicle and trailer become unstab le while driving, trailer stability assist
determines the cause. If the trailer oscillat ion is detected as the cause, and the
swaying increases, the system applies the brakes or controls engine output to reduce
vehicle speed.
Both the vehicle and trailer brake lights come on automatically if you brake to
reduce vehicle speed.
1 Trailer Stability Assist
Trailer stability assist is not a function that prevents
the vehicle and trailer from swaying. Avoid high
speeds, abrupt steering, improper trailer load, and
sudden braking to keep th e trailer from swaying.
When swayed too severely, the system becomes
ineffective, and you may lose control of your vehicle,
causing the trailer to ro ll over or get damaged.
2 Driving Safely with a Trailer P. 381
Trailer towing sway is caused by:
•Crosswinds
•Improper towbar down load
•Excessive Speed
The VSA ® system indicator blinks during the trailer
stability assist operation. 2 VSA ® Operation P. 412

uuTowing a Trailer uTowing Behind a Motorhome
382
Driving
• Monitor your temperature gauge. If it nears the mark, turn off the climate
control system and reduce speed. Pull to the side of the road safely to cool down
the engine if necessary.
• Shift to the
(S position if the transmission shifts frequently.
When retrieving a boat from the water, we recommend using the sequential mode
(S to utilize the transmissions lower gears.
Towing Behind a Motorhome
Your vehicle is not designed to be towed behind a motor home. If your vehicle needs
to be towed in an emergency, refe r to the emergency towing information.
2Emergency Towing P. 568
■Driving in Hilly Terrain
■Retrieving a Boat
1Driving in Hilly Terrain
If the automatic transmission fluid temperature
exceeds the specified limit, the transmission will also
automatically up shift, even in the sequential mode.
H

385Continued
Driving
When Driving
Starting the Engine
1.Make sure the parkin g brake is applied.
2. Depress the brake pedal.
3. Press the ENGINE START/STOP button
without depressing the accelerator pedal.1 Starting the Engine
Keep your foot firmly on the brake pedal when
starting the engine.
The engine is harder to st art in cold weather and in
thinner air found at altit udes above 8,000 feet (2,400
meters).
When starting the engine in cold weather, turn off all
electrical accessories such as the lights, climate
control system, and rear de fogger in order to reduce
battery drain.
If you live in a region where winter is extremely cold,
an engine block heater will improve starting and
warming of the engine. Consult a dealer for details.
If the exhaust system sounds abnormal or you can
smell exhaust gas inside the vehicle, have your vehicle
checked by a dealer. There may be a problem with
the engine or exhaust system.
Bring the smart entry remote close to the ENGINE
START/STOP button if the battery in the smart entry
remote is weak. 2 If the Smart Entry Remote Battery is Weak
P. 550
The engine may not start if the smart entry remote is
subjected to strong radio waves.
Do not hold the ENGINE START/STOP button to
start the engine.
If the engine does not start, wait at least 30 seconds
before starting the engine again.
Parking Brake
Brake Pedal

uuWhen Driving uStarting the Engine
386
Driving
1Starting the Engine
The immobilizer system pr otects your vehicle from
theft.
If an improperly c oded device is used, the engine’s
fuel system is disabled. 2 Immobilizer System P. 136

Continued387
uuWhen Driving uStarting the Engine
Driving
You can remotely start the engine using the smart entry remote.
■Remote Engine Start1Remote Engine Start
The remote engine start may violate local laws.
Before using the remote e ngine start, check your
local laws.
If there are buildings an d obstacles between your
vehicle and the remote, th e range will be reduced.
This distance may vary by external electrical
interference.
3WARNING
Carbon monoxide ga s is toxic and can
rapidly accumulate in closed or even partly
enclosed areas.
Breathing it can cause unconsciousness and
even kill you.
Never use the remote engine starter with
the vehicle parked in a garage or other
areas with limited ventilation.