2021 HONDA RIDGELINE brake sensor

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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.

81
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

105
uuIndicators uMulti-Information Display Warning and Information Messages
Continued
Instrument Panel
MessageConditionExplanation
●Appears when the LKAS is in operation, or the LKAS
button is pressed, but there is a problem with a system
related to the LKAS. The LKAS cancels automatically.
The beeper sounds simultaneously.●If any other system indicators come on, such as the
VSA ®, ABS and brake system, take appropriate action.
2Indicators P. 78
●Appears if the temperature inside the front sensor
camera is too high and some driver assist systems and
auto high-beam cannot be activated.●Use the climate control system to cool down the
camera.
●Disappears - The camera has been cooled down and
the systems are activated normally.
2 Front Sensor Camera P. 465
2 Auto High-Beam (High Beam Support System)
P. 154
2 Honda Sensing ® P. 423
●Appears if the area around the front sensor camera is
blocked by dirt, mud, etc. and be prevented from
detecting a vehicle in front.
●May appear when driving in bad weather (rain, snow,
fog, etc.).
●When the front window gets dirty, stop your vehicle in
a safe place, and wipe it off with a soft cloth.
●Have your vehicle checked by a dealer if the message
does not disappear even after you cleaned the area
around the camera.
2 Front Sensor Camera P. 465
2 Auto High-Beam (High Beam Support System)
P. 154
2 Honda Sensing ® P. 423

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

426
uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Driving
Collision Mitigati on Braking SystemTM (CMBSTM)
Can assist you when there is a possibility of your vehicle colliding with a vehicle or a
pedestrian detected in front of yours. The CMBSTM 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.
■How the system works
1 Collision Mitigation Braking SystemTM (CMBSTM)
Important Safety Reminder
The CMBSTM is designed to reduce the severity of an
unavoidable collision. It does not prevent collisions nor
stop the vehicle automatically. It is still your
responsibility to operate the brake pedal and steering
wheel appropriately according to the driving conditions.
The CMBS
TM may not activate or may not detect a
vehicle in front of your vehicle under certain conditions:
2 CMBSTM Conditions and Limitations P. 430
For directions on the prop er handling of the radar
sensor, refer to the following page. 2 Radar Sensor P. 467
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera P. 465
1How the system works
Rapid vibrations on the st eering wheel alert you
when the your vehicle speed is between 19 and 62
mph (30 and 100 km/h) with an oncoming vehicle
detected in front of you.
When the CMBS
TM activates, it may automatically
apply the brake. It will be canceled when your vehicle
stops or a potential colli sion is not determined.
The system starts monitoring the roadway ah ead when your vehicle speed is about
3 mph (5 km/h) and there is a vehicle in front of you. The radar sensor is
behind the emblem.
The CMBS
TM activates when:●The speed difference between your vehicle and a vehicle or pedestrian
detected in front of you becomes about 3 mph (5 km/h) and over with a chance
of a collision.
●Your vehicle speed is about 62 mph (100 km /h) or less and there is a chance of a
collision with an oncoming detected vehicle or a pedestrian in front of you. The camera is
located behind the
rearview mirror.
When to use

431
uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Continued
Driving
■Vehicle conditions
• Headlight lenses are dirty or the h eadlights are not properly adjusted.
• The outside of the windshield is blocked by dirt, mud, leaves, wet snow, etc.
• The inside of the windshield is fogged.
• An abnormal tire or wheel condition (wrong size, varied size or construction,
improperly inflated, co mpact spare tire, etc.).
• When tire chains are installed.
• The vehicle is tilted due to a heavy load or suspension modifications.
• The camera temperature gets too high.
• Driving with the parking brake applied.
• When the radar sensor behind the emblem gets dirty.
• The vehicle is towing a trailer.

432
uuHonda Sensing ®u Collision Mitigation Braking SystemTM (CMBSTM)
Driving
■Detection limitations
• A vehicle or pedestrian suddenly crosses in front of you.
• The distance between your vehicle and the vehicle or pedestrian ahead of you is
too short.
• A vehicle cuts in front of you at a slow speed, and it brakes suddenly.
• When you accelerate rapidly and approach the vehicle or pedestrian ahead of you
at high speed.
• The vehicle ahead of you is a motorcycle, bicycle, mobility scooter or other small
vehicle.
• When there are animals in front of your vehicle.
• When you drive on a curved, winding or undulating road that makes it difficult for
the sensor to properly detect a vehicle in front of you.
• The speed difference between your vehicle an d a vehicle or pedestrian in front of
you is significantly large.
• An oncoming vehicle suddenly comes in front of you.
• Another vehicle suddenly comes in front of you at an intersection, etc.
• Your vehicle abruptly crosses over in front of an oncoming vehicle.
• When driving through a narrow iron bridge.
• When the lead vehicle suddenly slows down.

438
uuHonda Sensing ®u Adaptive Cruise Control (ACC)
Driving
Adaptive Cruise Control (ACC)
Helps maintain a constant vehicle speed a nd a set following-interval behind a vehicle
detected ahead of yours, without you havi ng to keep your foot on the brake or the
accelerator.1 Adaptive Cruise Control (ACC)
ACC can not be activated if Intelligent Traction
Management settin g is snow, sand
* or mud*.
3WARNING
Improper use of ACC can lead to a crash.
Use ACC only when driving on expressways
or freeways and in go od road and weather
conditions.
3WARNING
ACC has limited braking capability.
When your vehicle speed drops below
22 mph (35 km/h), ACC will automatically
cancel and no longer will apply your
vehicle's brakes.
Always be prepared to apply the brake
pedal when conditions require.
When to use
■Vehicle speed for ACC: Desired speed in a range above
roughly 25 mph (40 km/h) ~
■Shift position for ACC: In ( D or (S
The radar sensor is behind
the emblem.
The camera is located
behind the rearview
mirror.
* Not available on all models