Sound Acura RDX 2018 Owner's Guide

270
Driving
When Driving
Starting the Engine
1.Make sure the parking brake is applied.
2. Check that the shift lever is in
(P, then
depress the brake pedal.
u Although it is possible to start the vehicle
in
(N, it is safer to start it in (P.
3. Press the ENGINE START/STOP button
without depressing the accelerator pedal.
1 Starting the Engine
Keep your foot firmly on the brake pedal when
starting the engine.
The engine is harder to start in cold weather and in thinner
air found at altitudes above 8,000 feet (2,400 meters).
When starting the engine in cold weather, turn off all
electrical accessories such as the lights, climate
control system, and rear de fogger in order to reduce
battery drain.
If you live in a region where winter is extremely cold,
an engine block heater will improve starting and
warming of the engine. Cons ult a dealer for details.
If the exhaust system sounds abnormal or you can
smell exhaust gas inside the vehicle, have your vehicle
checked by a dealer. There may be a problem with
the engine or exhaust system.
Bring the keyless access remote close to the ENGINE
START/STOP button if the batte ry in the keyless
access remote is weak. 2 If the Keyless Access Remote Battery is
Weak P. 415
The engine may not start if the keyless access remote
is subjected to strong radio waves.
You do not need to hold the ENGINE START/STOP
button to start the engine.
If the engine does not start, wait at least 30 seconds
before trying again.
Brake Pedal

Continued289
uuWhen Driving uAdaptive Cruise Control (ACC)*
Driving
■There is a vehicle ahead
ACC monitors if a vehicle ahead of you enters the ACC range. If a vehicle is detected
doing so, the ACC system maintains or decele rates your vehicle’s set speed in order
to keep the vehicle’s set followi ng-interval from the vehicle ahead.
2To Change Vehicle Following-interval P. 294
■When in Operation1When in Operation
If the vehicle detected ahead of you slows down
abruptly, or if a nother vehicle is de tected cutting in
front of you, the beep er sounds and a message
appears on the multi-informat ion display to alert you
to brake.
Depress the brake pedal, and keep an appropriate
interval from the vehicle ahead.
Even if the interval betw een your vehicle and the
vehicle detected ahead is short, ACC may start
accelerating your vehi cle under the following
circumstances:
•The vehicle ahead of you is going at almost the
same speed as, or fast er than your vehicle.
•A vehicle that cuts in front of you is going faster
than your vehicle, gradua lly increasing the interval
between the vehicles.
Beep
ACC Range: 394 ft. (120 m)

uuWhen Driving uAdaptive Cruise Control (ACC)*
296
Driving
To cancel adaptive cruise control, do any of
the following:
• Press the CANCEL button.
• Press the MAIN button.
• Depress the brake pedal.
■Automatic cancellation
The beeper sounds and a me ssage appears on the multi-information display when
ACC is automatically canceled. Any of these conditions may cause the ACC
cancellation:
• Your vehicle speed slows down to 22 mph (35 km/h) and below.
• Bad weather (rain, fog, snow, etc.).
• When the radar sensor in the front grille gets dirty.
• The vehicle ahead of you cannot be detected.
• An abnormal tire condition is dete cted, or the tires are skidding.
• Driving on a mountainous road, or driving off road for extended periods.
• Abrupt steering wheel movement.
• When the ABS, VSA ® is activated.
• When the ABS or VSA ® system indicator comes on.
• When you manually apply the parking brake.
• When the detected vehicle within the ACC range is too close to your vehicle.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
■To Cancel1 To Cancel
Resuming the prior set speed: After you have
canceled adaptive cruise c ontrol, you can resume the
prior set speed while it is still displayed. Press the
RES/ACCEL button when driving at a speed of at
least 25 mph (40 km/h) or more.
You cannot set or resume wh en vehicle speed is less
than 25 mph (40 km/h).
The set speed cannot be set or resumed when ACC
has been turned off using the MAIN button. Press
the MAIN button to activate the system, then set the
desired speed.
1 Automatic cancellation
Even though adaptive crui se control has been
automatically canceled, you can still resume the prior
set speed. Wait until the condition that caused ACC
to cancel improves, then press the RES/ACCEL
button.

299
uuWhen Driving uLane Departure Warning (LDW)*
Continued
Driving
Lane Departure Warning (LDW)*
Alerts you when the system determines a possibility of your vehicle unintentionally
crossing over detected lane markings.
If your vehicle is getting too close to detected
left or right side lane markings without a turn
signal activated, LDW will give audible and
visual alerts.
The beeper sounds and the Lane Departure
message appears on the multi-information
display, letting you know that you need to
take appropriate action.
The system begins to search for lane mark ings when all the following conditions are
met:
• The vehicle is traveling between about 45 and 90 mph (72 and 145 km/h).
• The vehicle is on a straight or slightly curved road.
• The turn signals are off.
• The brake pedal is not depressed.
• The wipers are not in continuous operation.
■How the System Works
1Lane Departure Warning (LDW)*
Important Safety Reminder
Like all assistance systems, LDW has limitations.
Over-reliance on LDW may result in a collision. It is
always your respons ibility to keep the vehicle within
your driving lane.
LDW only alerts you when lane drift is detected
without a turn signal in us e. LDW may not detect all
lane markings or lane departures; a ccuracy will vary
based on weather, speed and lane marker condition.
It is always your responsibility to safely operate the
vehicle and avoid collisions.
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera
* P. 284
■How the System Activates1How the System Activates
LDW may automatically shut off and the LDW
indicator comes and stays on.
2 Indicators P. 68
* Not available on all models

307
uuWhen Driving uLane Keeping Assist System (LKAS)*
Continued
Driving
■The system operation is suspended if
you:
• Set the wipers to continuous operation.
u Turning the wipers off resumes the
LKAS.
• Decrease the vehicle speed to about 40
mph (64 km/h) or less.
u Increasing the vehicle speed to about 45
mph (72 km/h) or more resumes the
LKAS.
• Depress the brake pedal.
u The LKAS resumes and starts detecting
the lane lines again once you release the
brake pedal.
• Set the wiper switch to AUTO and the
wipers operate continuously.
u The LKAS resumes when the wipers stop
or operate intermittently.
■The LKAS may automatically be suspended when:
• The system fails to detect lane lines.
• The steering wheel is quickly turned.
• You fail to steer the vehicle.
• The vehicle runs on a curved road over the speed limit.
Once these conditions no longer exist, the LKAS automatically resumes.
When the LKAS is suspended,
the lane lines on the multi-
information disp lay change to
contour lines, and the beeper
sounds.
Models with automatic intermittent wipers

308
uuWhen Driving uLane Keeping Assist System (LKAS)*
Driving
■The LKAS may automatically be canceled when:
• The camera temperature gets too high.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
• When driving through a sharp curve.
• When driving at a speed in excess of approximately 90 mph (145 km/h).
• When the ABS or VSA ® systems engage.
A beeper will sound if the LKAS is automatically canceled.

uuWhen Driving uVehicle Stability Assist (VSA® ), aka Electronic Stability Control (ESC), System
312
Driving
This button is on the driver side control panel.
To turn the VSA® system on and off, press and
hold it until you hear a beep.
VSA® will stop and the indicator will come on.
To turn it on again, press the (VSA ® OFF )
button until you hear a beep.
VSA ® is turned on every time you start the
engine, even if you turned it off the last time
you drove the vehicle.
■VSA ® On and Off1 Vehicle Stability Assist (VSA ®), aka Electronic Stability Control
(ESC), System
Without VSA ®, your vehicle will have normal braking
and cornering ability, bu t it will not have VSA®
traction and stability enhancement.
In certain unusual conditions when your vehicle gets
stuck in shallow mud or fr esh snow, it may be easier
to free it with the VSA ® temporarily switched off.
When the VSA ® system is off, the traction control
system is also off. You should only atte mpt to free
your vehicle with the VSA ® off if you ar e not able to
free it when the VSA ® is on.
Immediately after freeing your vehicle, be sure to
switch VSA ® on again. We do not recommend driving
your vehicle with the VSA ® and traction control
systems switched off.
You may hear a motor sound coming from the
engine compartment while system checks are being
performed immediately after starting the engine or
while driving. This is normal.
VSA ® OFF Indicator

uuWhen Driving uBlind spot information (BSI) System*
314
Driving
■When the system detects a vehicle1Blind spot inform ation (BSI) System*
The BSI alert indicator may not come on under the
following conditions:
•A vehicle does not stay in the alert zone for more
than two seconds.
•A vehicle is parked in a side lane.
•The speed difference betw een your vehicle and the
vehicle you are passing is greater than 6 mph (10
km/h).
•An object not detected by the radar sensors
approaches or passes your vehicle.
•A vehicle running in the adjacent lane is a
motorcycle or other small vehicle.
The system does not operate when in
( R.
You can change the setting for BSI. 2 Customized Features P. 102, 108
Turn the system off when towing a trailer.
The system may not work properly for the following
reasons:
•The added mass tilts the vehicle and changes the
radar coverage.
•The trailer itself can be detected by the radar
sensors, causing the BSI al ert indicators to come on.
Comes on when:●A vehicle enters the ale rt zone from behind
to overtake you with a speed difference of
no more than 31 mph (50 km/h) from your
vehicle.
●You pass a vehicle with a speed difference
of no more than 12 mph (20 km/h).
Blinks and a beeper sounds when:
You move the turn signal lever in the direction
of the detected vehicle. The beeper sounds
three times. Comes On
Blinks
BSI Alert Indicator
* Not available on all models

320
Driving
Braking
Brake System
Use the parking brake to keep the vehicle stationary when parking.
To apply:
Depress the parking brake pedal down with
your foot.
To release:
1. Depress the brake pedal.
2. Depress the parking brake.
■Parking Brake1Parking Brake
NOTICE
Release the parking brake fu lly before driving. The
rear brakes and axle can be damaged if you drive
with the parki ng brake applied.
If you start driving without fully releasing the parking
brake, a buzzer sounds as a warning, and RELEASE
PARKING BRAKE /Release Parking Brake appears
on the multi-information display.
Always apply the parking brake when parking.

321
uuBraking uBrake System
Driving
Your vehicle is equipped with disc brakes at all four wheels. A vacuum power assist
helps reduce the effort needed on the brake pedal. The brake assist system increases
the stopping force when you depress the brake pedal hard in an emergency
situation. The anti-lock brake system (ABS) helps you retain steering control when
braking very hard.
2 Brake Assist System P. 323
2 Anti-lock Brake System (ABS) P. 322
■Foot Brake1Foot Brake
Check the brakes after driving through deep water,
or if there is a buildup of road surface water. If
necessary, dry the brakes by lightly depressing the
pedal several times.
If you hear a continuous me tallic friction sound when
applying the brakes, this is caused by the brake wear
indicator rubbing on the brake rotor and indicates
that the brake pads need to be replaced. Have the
vehicle checked by a deal er. If you hear only an
occasional squeak or squeal when you initially apply
the brake pedal, this may be normal and caused by
high frequency vibr ation of the brake pads against
the rotating brake disc.
Constantly using the brak e pedal while going down a
long hill builds up heat, which reduces the brake
effectiveness. Apply engine braking by taking your
foot off the accelerator pe dal and downshifting to a
lower gear.
Do not rest your foot on the brake pedal while
driving, as it will lightly apply the brakes and cause
them to lose effectiveness over time and reduce pad
life. It will also conf use drivers behind you.
Your vehicle is equipped with a hydraulic brake
booster that, under certain conditions, such as
braking at high altitudes, supplements the vacuum
power assist. When the hydraulic brake booster
activates, you may hear a motor sound and a slight
vibration in the pedal. This is normal.