2021 HONDA RIDGELINE brake

Event Data Recorders
This vehicle is equipped with an event data recorder (EDR).
The main purpose of an EDR is to record, in certain crash or near
crash-like situations, such as an air bag deployment or hitting a
road obstacle, data that will assist in understanding how a vehicle’s
systems performed. The EDR is designed to record data related
to vehicle dynamics and safety systems for a short period of
time, typically 30 seconds or less. The EDR in this vehicle is
designed to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenger safety belts were
buckled/fastened;
• How far (if at all) the driver was depressing the accelerator
and/or brake pedal; and,
• How fast the vehicle was traveling.
These data can help provide a better understanding of the
circumstances in which crashes and injuries occur. NOTE: EDR data
are recorded by your vehicle only if a non-trivial crash situation
occurs; no data are recorded by the EDR under normal driving
conditions and no personal data (e.g., name, gender, age, and
crash location) are recorded. Howeve r, other parties, such as law
enforcement, could co mbine the EDR data with the type of
personally identifying data routinely acquired during a crash
investigation.
To read data recorded by an ED R, special equipment is required,
and access to the vehicle or the EDR is needed. In addition to the
vehicle manufacturer, other parties, such as law enforcement, that
have the special equipment, can re ad the information if they have
access to the vehicle or the EDR.

Visual Index
8
Quick Reference Guide❚Power Window Switches (P139)
❚Master Door Lock Switch (P129)
❚Memory Buttons* (P162)
❚SET Button* (P162)❚Fuel Fill Door Release Button (P484)
❚Driver’s Front Airbag (P47)
❚Shift Button (P395)
❚Auxiliary Input Jack (P207)
❚Parking Brake (P468)
❚Interior Fuse Box Type A (P565)
❚Hood Release Handle (P497)
❚Door Mirror Controls (P165)
❚Accessory Power Socket (P182)
❚USB Port (P205)
❚Auto Idle Stop OFF Button (P407)
❚Mode Button* (P404)
❚Trunk Main Switch (P134)
❚Interior Fuse Box Type B (P566)
❚Snow Button* (P405)
❚Wireless Charger* (P183)
❚Glove Box (P177)
❚USB Ports* (P205)
❚Accessory Power Socket (P182)
❚Passenger’s Front Airbag (P47)
❚Rearview Mirror (P164)
❚HomeLink® Buttons* (P326)
❚Rear Outer Seat Heater Buttons* (P190)
❚USB Port (P205)

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)

11
Quick Reference Guide
Auto Idle Stop Function
To improve fuel economy, the engine stops and then restarts as detailed below. When Auto Idle Stop is on, the Auto Idle Stop in dicator
(green) comes on. (P406)
At Automatic transmissionEngine status
Deceleration
Stop the vehicle and depress the brake
pedal.
StopKeep the brake pedal depressed.
Start-up Release the brake pedal.
On
Off
Restarting
* Not available on all models

14
Quick Reference Guide
Instrument Panel (P77)
System Indicators
Malfunction Indicator
Lamp
Low Oil Pressure
Indicator
Charging System
IndicatorAnti-lock Brake System
(
ABS ) Indicator
Vehicle Stability Assist
TM
(VSA® ) System Indicator
VSA ® OFF Indicator
Electric Power Steering
(EPS) System Indicator
Lights Indicators
Lights On Indicator
High Beam Indicator
Immobilizer System
Indicator
Seat Belt Reminder
Indicator
System Indicators
System Message
IndicatorParking Brake and
Brake System
Indicator (Red)Supplemental
Restraint System
Indicator
Low Fuel Indicator
Gauges (P110)/Multi-Information Display (P111)/System Indicators (P78)
Low Tire Pressure/
TPMS Indicator Turn Signal and
Hazard Warning
Indicators
Smart Entry System
Indicator Ambient Meter
Shift Position Indicator/
Transmission System
Indicator Fuel Gauge
TachometerTemperature
GaugeSpeedometer
Multi-Information
Display
Brake System
Indicator (Amber)
All-wheel drive (AWD)
Indicator*
Blind spot information
System Indicator*
System Indicators
Collision Mitigation Braking
SystemTM (CMBSTM) Indicator
Road Departure Mitigation
Indicator
Security System Alarm
Indicator
U.S.
Canada U.S.
Canada
Fog Light Indicator
ECON Mode Indicator
Auto High-Beam
Indicator
Lane Keeping Assist
System (
LKAS) Indicator
(Green/Amber)
Adaptive Cruise
Control ( ACC)
Indicator (Green/
Amber)
Intelligent Traction
Management Indicator
Bed Lights On Indicator
Auto Idle Stop System
Indicator (Amber)/
Auto Idle Stop
Indicator (Green)
M (Sequential mode)
Indicator/Sequential Mode
Gear Selection Indicator

21
Quick Reference Guide
Driving (P363)
Automatic Transmission (P394)
●Select (P and depress the brake pedal when starting the engine.
Park
Press the
(P button.
Used when parking or before
turn off or start the engine.
Transmission is locked.
Reverse
Pull back the
( R button.
Used when reversing.
Neutral
Press the
( N button.
Transmission is not locked.
Shift Position Indicator
The Shift Position Indicator
indicates the current shift position.
Shift Position Indicator Shift Button
Indicator
●Shifting
Drive/S PositionEach time you press the button, the mode
switches between Drive
and S position mode.
Used for:
●Normal driving (gears change between 1st
and 9th automatically)
●Temporarily driving in the sequential mode
●Automatically changing gears between 1st
and 8th (8th gear is used only at high speed)
●Driving in the sequential mode
D/S
Drive
S Position
* Not available on all models

24
Quick Reference Guide
Honda Sensing®(P423)
Honda Sensing ® is a driver support system
which employs the use of two distinctly
different kinds of sensors, a radar sensor
located behind the emblem and a front
sensor camera mounted to the interior side
of the windshield, behind the rearview
mirror.
The camera is located
behind the rearview mirror.
Front
Sensor
Camera
Radar Sensor The radar sensor is
behind
the em

blem.
Collision Mitigation
Braking System
TM
(CMBS
TM) (P426)
Can assist you when there is a possibility of
your vehicle colliding with a vehicle or a
pedestrian detected in front of yours. The
CMBS
TM is designed to alert you when the
potential for a collision is determined, as
well as to reduce your vehicle speed to help
minimize collision severity when a collision is
deemed unavoidable.
Adaptive Cruise Control
(ACC)
(P438)
Helps maintain a constant vehicle speed and
a set following-interval behind a vehicle
detected ahead of yours, without you
having to keep your foot on the brake or
the accelerator.
Lane Keeping Assist
System (LKAS)
(P451)
Provides steering input to help keep the
vehicle in the middle of a detected lane and
provides tactile and visual alerts if the
vehicle is detected drifting out of its lane.
Road Departure
Mitigation System
(P460)
Alerts and helps to assist you when the
system detects a possibility of your vehicle
unintentionally crossing over detected lane
markings and/or leaving the roadway
altogether.

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.