open hood HONDA RIDGELINE 2021 Owner's Manual (in English)

Contents
Child Safety P. 59Exhaust Gas Hazard P. 74Safety Labels P. 75
Tailgate P. 131 Opening and Closing the Trunk P. 133
Moonroof* P. 143 Operating the Switches Around the Steering Wheel P. 145
Interior/Exterior Convenience Items P. 175Climate Control System P. 195
Audio System Basic Operation P. 211 Audio Error Messages P. 278
Customized Features P. 298
Off-Highway Driving Guidelines P. 383 When Driving P. 385 Honda Sensing® P. 423
Multi-View Rear Camera P. 481 Refueling P. 483 Fuel Economy and CO
2 Emissions P. 486
Maintenance Under the Hood P. 496 Replacing Light Bulbs P. 508
Checking and Maintaining Tires P. 516 Battery P. 525 Remote Transmitter Care P. 527
Cleaning P. 529 Accessories and Modifications P. 535
Engine Does Not Start P. 549If the Battery Is Dead P. 552
Fuses P. 562 Emergency Towing P. 568
If You Cannot Unlock the Tailgate P. 570 Refueling P. 571
Devices that Emit Radio Waves P. 577 Reporting Safety Defects P. 578
Authorized Manuals P. 584 Customer Service Information P. 585
Quick Reference GuideP. 6
Safe DrivingP. 31
Instrument PanelP. 77
ControlsP. 115
FeaturesP. 203
DrivingP. 363
MaintenanceP. 487
Handling the UnexpectedP. 537
InformationP. 573
IndexP. 587

Visual Index
10
Quick Reference Guide❚Maintenance Under the Hood (P496)
❚Windshield Wipers (P157, 514)
❚Power Door Mirrors (P165)
❚Headlights (P149, 508)
❚Front Side Marker Lights (P149, 510)
❚Side Turn Signal Lights* (P148, 511)
❚How to Refuel (P484)
❚Rear Turn Signal and Back-Up Lights (P148, 512)
❚Tires (P516, 539)
❚Front Turn Signal/Parking* Lights (P148, 511)
❚Brake/Taillight and Rear Side Marker Lights (P512)
❚Rear License Plate Light (P513)
❚Multi-View Rear Camera (P481)
❚Drop Opening the Tailgate (P132)
❚Swing Opening the Tailgate (P132)
❚Opening and Closing the Trunk (P133)
❚AC Power Outlet* (P191)
❚High-Mount Brake Light (P513)
❚Fog Lights (P152, 510)
❚Daytime Running Lights /Parking Lights* (P153, 510)
❚Door Lock/Unlock Control (P120)
❚Rear License Plate Light (P513)
❚Bed Lights (P193)

26
Quick Reference Guide
Handling the Unexpected (P537)
Flat Tire (P539)
●Park in a safe location and replace the
flat tire with the compact spare tire
located in the trunk.
Indicators Come On (P557)
●Identify the indicator and consult the
owner’s manual.
Engine Won’t Start (P549)
●If the battery is dead, jump start using a
booster battery.
Blown Fuse (P562)
●Check for a blown fuse if an electrical
device does not operate.
Overheating (P555)
●Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the engine cool down.
Emergency Towing (P568)
●Call a professional towing service if you
need to tow your vehicle.

99
uuIndicators uMulti-Information Display Warning and Information Messages
Continued
Instrument Panel
MessageConditionExplanation
●Appears if there is a problem with the cooling system.●Drive slowly to prevent overheating and have your
vehicle checked by a deal er as soon as possible.
●Appears when the transmission system temperature is
too high. The vehicle does not operate properly.●Stop in a safe place in (P.●Let the engine idle until the message disappears.
●Appears after you set the power mode to ACCESSORY
or ON.2Starting the Engine P. 385
●Appears when the engine does not restart automatically
due to the following reasons:
-The hood is open.
- There is a problem in the sy stem that disables Auto
Idle Stop.●Follow the normal procedure to start the engine.
2 Starting the Engine P. 385
●Appears when you attempt to change to another shift
position with the transmission in
(P and the engine
OFF.
●To select another shift position while in (P, the engine
must be ON.
●Appears when you try to chan ge the shift position after
the position has automatically been changed to
( P with
the driver’s door open and the driver’s seat belt
unfastened.
●Press the (P button If you leave the vehicle.

100
uuIndicators uMulti-Information Display Warn ing and Information Messages
Instrument Panel
MessageConditionExplanation
●Appears when you put the transmission into (N, then
release the
(N button.2 If you want to keep the transmission in (N
position [car wash mode] P. 399
●Appears when you press and hold the (N button for
more than 2 seconds.●Disappears when you set the sh ift position to other than
(N.
2If you want to keep the transmission in (N
position [car wash mode] P. 399
●Appears when the engine stops without the
transmission in
(P, and does not restart automatically.●Appears if you open the hood while Auto Idle Stop
activates.
●If you want to set the power mode to ON, put the
transmission into
(P.●If you want to start the engine, follow the normal
procedure.
2 Starting the Engine P. 385
●Appears when you try to change the shift position
without depressing the brake pedal.●Depress the brake pedal, then change the shift position.
●Appears when you try to change the shift position
without releasing your foot off the accelerator pedal.●Release your foot off the accelerator pedal, then change
the shift position.

107
uuIndicators uMulti-Information Display Warning and Information Messages
Continued
Instrument Panel
MessageConditionExplanation
●Appears when Auto Idle St op does not activate because
the pressure to the brake pedal is not enough.●Depress the brake pedal firmly.
2 Auto Idle Stop P. 406
●Appears when Auto Engine Idle Stop Guidance
Screen On has been selected from the customization
menu.
2 Customized Features P. 298
2Auto Idle Stop P. 406
●Appears when the system is under the following
conditions while Auto Idle Stop activates:
- The climate control system is in use, and the difference
between the set temperature and actual interior
temperature becomes significant.
- The humidity in the interior is high.
- The battery charge level is low.●The engine restarts automatically in a few seconds.
2 Auto Idle Stop P. 406
2 The Engine Automatically Restarts When: P. 410
●Appears when the hood is opened.●Close the hood.

uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
124
Controls
To temporarily deactivate the function:
1. Set the power mode to VEHICLE OFF.
2. Open the driver’s door.
3. Using the master door lock switch, operate
the lock as follows:
Lock Unlock Lock Unlock.
u The beeper sounds and the function is
deactivated.
To restore the function:
• Set the power mode to ON.
• Lock the vehicle without using the auto lock
function
• With the smart entry re mote on you, move
out of the auto lock function operation
range.
• Open any door.1Locking the doors (Walk away auto lock ®)
The auto lock function does not operate when any of
the following conditions are met.
•The smart entry remote is inside the vehicle.
•A door or the hood is not closed.
•The power mode is set to any mode other than
OFF.
•The smart entry remote is not located within a
radius of about 5 feet (1 .5 m) from the vehicle
when you get out of the vehicle and close the
doors.
Auto lock function operation stop beeper
After the auto lock function has been activated, the
auto lock operation stop beeper sounds for
approximately two seconds in the following cases.
•The smart entry remote is put inside the vehicle
through a window.
•You are located too close to the vehicle.
•The smart entry remote is put inside the trunk.
If the warning beeper sounds, check that you are
carrying the smart entry remote. Then, open/close a
door and confirm the auto lock activation beeper
sounds once.

136
Controls
Security System
Immobilizer System
This system prevents a key that has not been pre-registered from starting the
engine.
Pay attention to the follo wing when pressing the ENGINE START/STOP button:
• Do not allow objects that emit strong radio waves near the ENGINE START/
STOP button.
• Make sure the key is not covered by or touching a metal object.
• Do not bring a key from another vehi cle’s immobilizer system near the ENGINE
START/STOP button.
Do not put the key near magnetic items. El ectronic device, such as televisions and
audio systems emit strong magnetic fields . Note that even a key chain can become
magnetic.
Security System Alarm
The security system alarm activates wh en the trunk, hood or doors are forcibly
opened. The alarm does not activate if th e trunk or doors are opened with the key,
remote transmitter or smart entry system.
However, the alarm activates if a door is opened with the key and then the hood is
opened before the power mode is set to ON.
■When the security sy stem alarm activates
The horn sounds intermittently, and some exterior lights flash.
1 Immobilizer System
NOTICE
Leaving the key in the vehicl e can result in theft or
accidental movement of the vehicle.
Always take the key with you whenever you leave the
vehicle unattended.
Do not alter the system or add other devices to it.
Doing so may damage the system and make your
vehicle inoperable.
1 Security System Alarm
Do not alter the system or add other devices to it.
Doing so may damage the system and make your
vehicle inoperable.
The security system alarm continues for a maximum
of two minutes until the security system alarm
deactivates.

Continued137
uuSecurity System uSecurity System Alarm
Controls
■To deactivate the security system alarm
Unlock the vehicle using the key, remote tra nsmitter, or smart entry system, or the
power mode is set to ON. The system, along with the horn and flashing lights, is
deactivated.
■Setting the security system alarm
The security system alarm automatically sets when the following conditions have
been met:
• The power mode is set to VEHICLE OFF (LOCK).
• The hood is closed.
• All doors and trunk are locked from outsid e with the key, remote transmitter, or
smart entry system.
■When the security system alarm sets
The security system alarm in dicator in the instrument panel blinks and the blinking
interval changes after about 15 seconds.
■To cancel the security system alarm
The security system alarm is canceled wh en the vehicle is unlocked using the key,
remote transmitter, or smart entry system, or when the power mode is set to ON.
The security system alarm indica tor goes off at the same time.
1Security System Alarm
Do not set the security system alarm when someone
is in the vehicle or a window is open. The system can
accidentally activate when:
•Unlocking the door with the lock tab.•Opening the trunk with the trunk release or the
emergency trunk opener.
•Opening the hood with the hood release.
If the battery goes dead after you have set the
security system alarm, the security alarm may go off
once the battery is re charged or replaced.
If this occurs, deactivate the security system alarm by
unlocking a door using the ke y, remote transmitter,
or smart entry system.

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.