2021 HONDA RIDGELINE climate control

Contents
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
The Navigation Manual is available online at owners.honda.com
(U.S.) or honda.ca (Canada). If you are the first registered owner
of your vehicle, you may request a complimentary printed
copy of the Navigation Manual within the first six months of
vehicle purchase. To request a copy, visit owners.honda.com. In
Canada, please request a copy from your Honda dealer.
This owner’s manual covers all models of your vehicle. You may find
descriptions of equipment and features that are not on your
particular model.
Images throughout this owner’s ma nual (including the front cover)
represent features and equipment that are available on some, but
not all, models. Your particular mo del may not have some of these
features.
This owner’s manual is for vehicles sold in the United States and
Canada.
The information and specifications in cluded in this publication were
in effect at the time of approval for printing. Honda Motor Co., Ltd.
reserves the right, however, to discontinue or change specifications
or design at any time without notice and without incurring any
obligation.2 Safe Driving P. 31
For Safe Driving P. 32 Seat Belts P. 37 Airbags P. 44
2Instrument Panel P. 77
Indicators P. 78 Gauges and Multi-Information Display P. 110
2Controls P. 115
Clock P. 116 Locking and Unlocking the Doors P. 117
Security System P. 136 Windows P. 139
Mirrors P. 164 Seats P. 166
2Features P. 203
Audio System P. 204
General Information on the Audio System P. 281
HomeLink ® Universal Transceiver P. 323 Bluetooth® HandsFreeLink ® P. 329
2 Driving P. 363
Before Driving P. 364 Towing a Trailer P. 372
Braking P. 468Parking Your Vehicle P. 472
2Maintenance P. 487
Before Performing Maintenance P. 488 Maintenance MinderTM P. 491
Checking and Maintaining Wiper Blades P. 514
Climate Control System Maintenance P. 528
2Handling the Unexpected P. 537
Tools P. 538 If a Tire Goes Flat P. 539
Overheating P. 555 Indicator, Coming On/Blinking P. 557
If You Cannot Unlock the Fuel Fill Door P. 569
2 Information P. 573
Specifications P. 574 Identification Numbers P. 576
Emissions Testing P. 579 Warranty Coverages P. 581

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

6
Quick Reference Guide
Quick Reference Guide
Visual Index
❚Gauges (P110)
❚Multi-Information Display
(P111)
❚System Indicators (P78)
❚ECON Button (P403)
❚Collision Mitigation Braking SystemTM
(CMBSTM) OFF Button (P429)
❚Heated Windshield Button* (P159)
❚Parking Sensor System Button* (P474)
❚Steering Wheel Adjustments (P163)
❚ENGINE START/STOP Button (P145)
❚AC Power Outlet Button* (P192)
❚Road Departure Mitigation Button
(P462)
❚ (Vehicle Stability AssistTM (VSA ®)
System OFF) Button
(P413)
❚Bed Light Button (P193)
❚Audio System (P204)
❚Navigation System*
() See the Navigation System Manual
❚Hazard Warning Button
❚Rear Defogger/Heated Door Mirror*
Button
(P159)
❚Climate Control System (P195)
❚Front Seat Heaters and Seat
Ventilation Buttons* (P189)
❚Front Seat Heater Buttons* (P188)

18
Quick Reference Guide
Climate Control System (P195)
●Press the AUTO button to activate the climate control system.●Press the button to turn the system on or off.●Press the button to defrost the windshield.
The climate control system is voice operable. (P232)
Models with navigation system
Fan Control
Button (Windshield
Defroster) Button
A/C (Air
Conditioning)
Button
Air flows from dashboard and
back of the center console
vents.
Air flows from dashboard, floor
and back of the center console
vents.
Air flows from floor vents.
Air flows from floor and
windshield defroster vents. (Recirculation)
Button
Passenger’s Side
Temperature
Control Switch
AUTO
Button
Driver’s Side
Temperature
Control Switch
MODE Button
SYNC

(Synchronized) Button (
ON/OFF) Button
Rear Climate Control* (P200)●Press the AUTO button to activate the
rear climate control system.
●Press the button to turn the system
on or off.
Rear Temperature
Control Buttons /
(Rear Fan
Control) Buttons
Rear AUTO
Button
(Rear ON/
OFF ) Button
MODE Button
Air flows from the rear floor vents. Air flow from the center console
vents and floor vents. Air flows from the center console
vents.

33
uuFor Safe Driving uImportant Safety Precautions
Safe Driving
■Pay appropriate attention to the task of driving safely
Engaging in cell phone conversation or other activities that keep you from paying
close attention to the road, other vehicles, and pedestrians could lead to a crash.
Remember, situations can change quickly, and only you can decide when it is safe to
divert some attention away from driving.
■Control your speed
Excessive speed is a major factor in crash injuries and deaths. Generally, the higher
the speed, the greater the risk, but serious injuries can also occur at lower speeds.
Never drive faster than is safe for current conditions, regardless of the maximum
speed posted.
■Keep your vehicle in safe condition
Having a tire blowout or a mechanical failure can be extremely hazardous.
To reduce the possibility of such problems, check your tire pressures and condition
frequently, and perform all regul arly scheduled maintenance.
■Never let passengers ride in the pickup bed or inside a truck cap (shell).
They could be killed or injured in a crash, or become ill or even die from carbon
monoxide poisoning if engine exhaust enters the cap.
■Do not leave children unattended in the vehicle
Children, pets and people needing assistan ce left unattended in the vehicle may be
injured if they activate one or more of the vehicle controls. They may also cause the
vehicle to move, resulting in a crash in wh ich they and/or another person(s) can be
injured or killed. Also, depending on the am bient temperature, the temperature of
the interior may reach extreme levels, which can result in harm or death.
Even if the climate control system is on, never leave them in the vehicle unattended
as the climate control system can shut off at any time.

79
uuIndicators u
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Low Oil Pressure
Indicator
●Comes on when you set the
power mode to ON, and goes off
when the engine starts.
●Comes on when the engine oil
pressure is low.
●Comes on while driving - Immediately
stop in a safe place.
2 If the Low Oil Pressure Indicator Comes
On P. 557
Malfunction
Indicator Lamp
●Comes on when you set the
power mode to ON, and goes off
either when the engine starts, or
after several seconds if the
engine did not start. If “readiness
codes” have not been set, it
blinks five times before it goes
off.
●Comes on if there is a problem
with the emissions control
systems.
●Blinks when a misfire in the
engine’s cylinders is detected.
●Readiness codes are part of the on board
diagnostics for the emissions control
systems.
2 Testing of Readiness Codes P. 579●Comes on while driving - Have your
vehicle checked by a dealer.
●Blinks while driving - Stop in a safe place
where there are no flammable objects. Stop
the engine for 10 minutes or more, and wait
for it to cool down. Then, take your vehicle
to a dealer.
2 If the Malfunction Indicator Lamp
Comes On or Blinks P. 558
Charging System
Indicator
●Comes on when you set the
power mode to ON, and goes off
when the engine starts.
●Comes on when there is a
problem with the charging
system.
●Comes on while driving - Turn off the
climate control system and rear defogger in
order to reduce electricity consumption.
2 Checking the Battery P. 525
2 If the Charging System Indicator Comes
On P. 557

90
uuIndicators u
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Road Departure
Mitigation
Indicator
●Comes on for a few seconds
when you set the power mode
to ON, then goes off.
●Comes on if there is a problem
with the Road Departure
Mitigation system.
●Stays on constantly - Have your vehicle
checked by a dealer.
●Comes on when the Road
Departure Mitigation system
shuts itself off.●Stays on - The temperature inside the camera
is too high.
Use the climate control system to cool down
the camera.
The system activates when the temperature
inside the camera cools down.
2 Front Sensor Camera P. 465
●Stays on - The area around the camera is
blocked by dirt, mud, etc. Stop your vehicle in
a safe place and wipe the debris off with a soft
cloth.
●Have your vehicle checked by a dealer if the
indicator and message come back on after
you cleaned the area around the camera.
2 Front Sensor Camera P. 465

94
uuIndicators u
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Collision
Mitigation Braking
System
TM
(CMBSTM)
Indicator
●Comes on when the CMBSTM
shuts itself off.●Stays on - The area around the camera is
blocked by dirt, mud, etc. Stop your vehicle in
a safe place and wipe the debris off with a
soft cloth.
●Have your vehicle checked by a dealer if the
indicator and message come back on after
you cleaned the area around the camera.
2 Front Sensor Camera P. 465
●When the radar sensor gets dirty, stop your
vehicle in a safe place, and then clean the
sensor using a soft cloth.
Indicator may take some time to go off after
the radar sensor is cleaned.
●Have your vehicle checked by a dealer if the
message does not disappear even after you
clean the front grille.
2 Collision Mitigation Braking SystemTM
(CMBSTM) P. 426
2 Radar Sensor P. 467
●Stays on - The temperature inside the
camera is too high. Use the climate control
system to cool down the camera. The system
activates when the temperature inside the
camera cools down.
2 Front Sensor Camera P. 465