2021 HONDA RIDGELINE check engine

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

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Quick Reference Guide
Safe Driving (P31)
Airbags (P44)
●Your vehicle is fitted with airbags to help protect you and
your passengers during a moderate-to-severe collision.
Child Safety (P59)
●All children 12 and younger should be seated in the rear seat.●Smaller children should be properly restrained in a forward-facing child seat.●Infants must be properly restrained in a rear-facing child seat.
Exhaust Gas Hazard (P74)
●Your vehicle emits dangerous exhaust gases that contain carbon
monoxide. Do not run the engine in confined spaces where carbon
monoxide gas can accumulate.
Before Driving Checklist (P36)
●Before driving, check that the front seats, head restraints,
steering wheel, and mirrors have been properly adjusted.
Seat Belts (P37)
●Fasten your seat belt and sit upright well
back in the seat.
●Check that your passengers are wearing
their seat belts correctly.
Fasten your lap belt as
low as possible.

25
Quick Reference Guide
Maintenance (P487)
Under the Hood (P496)
●Check engine oil, engine coolant, and windshield washer
fluid. Add when necessary.
●Check brake fluid.●Check the battery condition monthly.
aPull the hood release handle under the corner of the
dashboard.
bLocate the hood latch lever, push it to the side, and then
raise the hood. Once you have raised the hood slightly, you
can release the lever.
cWhen finished, close the hood and make sure it is firmly
locked in place.
Lights (P508)
●Inspect all lights regularly.
Wiper Blades (P514)
●Replace blades if they leave streaks across
the windshield or become noisy.
Tires (P516)
●Inspect tires and wheels regularly.●Check tire pressures regularly.●Install snow tires for winter
driving.

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.

27
Quick Reference Guide
What to Do If
The power mode does not
change from VEHICLE OFF
(LOCK) to ACCESSORY.
Why?
●The steering wheel may be locked.
●Move the steering wheel left and right
after pressing the ENGINE START/STOP
button.
Why does the brake pedal
pulsate slightly when
applying the brakes?This can occur when the ABS activates and does not indicate a
problem. Apply firm, steady pressure on the brake pedal. Never
pump the brake pedal.
2 Anti-lock Brake System (ABS) (P470)
The rear door cannot be
opened from inside the
vehicle. Why?Check if the childproof lock is in
the lock position. If so, open the
rear door with the outside door
handle.
To cancel this function, slide the
lever up to the unlock position.
Canadian models

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.

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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

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uuIndicators u
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Transmission
System
Indicator
●The current shift position or all the
shift positions blink if there is a
problem with the transmission system
and the vehicle will no longer move.●Immediately stop in a safe place.
2Emergency Towing P. 568●Have your vehicle checked by a dealer.
●The current shift position or all the
shift positions blink if you cannot
select
(P due to the transmission
system failure.
●The engine can be activated as a
temporary measure.
2 If the Transmission System Indicator
Blinks along with the Warning
Message P. 561
●Set the parking brake when parking.●Have your vehicle checked by a dealer
immediately.
Seat Belt
Reminder
Indicator
●Blinks and the beeper sounds for a
few seconds if you are not wearing a
seat belt when you set the power
mode to ON, then the indicator
comes on.
●If the front passenger is not wearing a
seat belt, the indicator comes on a
few seconds later.
●Blinks while driving if you and/or the
front passenger has not fastened a
seat belt. The beeper sounds and the
indicator blinks at regular intervals.
●The beeper stops and the indicator goes
off when you and the front passenger
fasten their seat belts.
●Stays on after you and/or the front
passenger has fastened the seat
belt(s) - A detection error may have
occurred in the sensor. Have your vehicle
checked by a dealer.
2 Seat Belt Reminder P. 38