stop start Acura TLX 2015 Service Manual

uuWhen Driving uAuto Idle Stop
*
344Driving
■Auto idle stop may not activate when:
• The vehicle is stopped by braking suddenly.
• The steering wheel is operated.
• The fan speed is high.
• Altitude is high.
• The vehicle is repeatedly accelerat ed and decelerated at a low speed.
• The climate control system is in use, and there is a significant difference between
the set temperature and the actual interior temperature.
• Humidity in the interior is high.
The brake pedal is released and the automatic brake hold system is off.■The engine restarts even if the brake pedal is depressed or the automatic
brake hold system is activated when:
• The Auto Idle Stop OFF button is pressed.
• When a steering wheel is operated.
• The gear position is in a position other than
(D
or in Sport+.
• The pressure on the brake pedal is reduced and the vehicle starts moving while
stopped on an incline.
• The pressure on the brake pedal is repeatedly applied and released slightly during
a stop.
• The battery charge becomes low.
• The accelerator pedal is depressed.
• The driver’s seat belt is unlatched.
• is ON (indicator on).
• The climate control system is in use, and the difference between the set
temperature and actual interior temperature becomes significant.
• The climate control system is being used to dehumidify the interior.
■
The Engine Automatically Restarts When:
1The Engine Automatically Restarts When:•If you are using an electronic device during Auto
Idle Stop, the device may temporarily be turned off
when the engine restarts.

345
uuWhen Driving uAuto Idle Stop
*
Driving
Briefly keeps the brakes applied after releasing the brake pedal to restart the engine.
This can keep your vehicle from unexpectedly moving while on an incline.■
Starting Assist Brake Function

uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
*
356Driving
■There is no vehicle ahead
Your vehicle maintains the set speed without
having to keep your foot on the brake or
accelerator pedal.
If there previously was a vehicle detected
ahead that kept your vehicle from traveling at
the set speed, ACC with LSF accelerates your
vehicle to the set speed, and then maintains it.■When you depress the accelerator pedal
You can temporarily increase the vehicle speed. In this case, there is no audible or
visual alert even if a vehicle is in the ACC with LSF range.
ACC with LSF stays on unless you cancel it. Once you release the accelerator pedal,
the system resumes the set speed.■A vehicle detected ahead is within ACC with LSF range and slows to a stop
Your vehicle also stops, automatically. The
Stopped message appears on the multi-
information display.
When the vehicle ahead of you starts again,
the vehicle icon on the multi-information
display blinks. If you press the RES/+/SET/–
switch up or down, or depress the accelerator
pedal, ACC with LSF operates again within the
previously set speed.A vehicle icon with dotted-line
contour appears on the multi-
information display
1 When in Operation
Limitations
You may need to use the brake to maintain a safe
distance when using ACC with LSF. Additionally,
ACC with LSF may not work properly under certain
conditions.
2 ACC with LSF Conditions and Limitations
P. 357
When your vehicle stops automatically because a
vehicle detected ahead of you has stopped, the
distance between the two vehicles will vary based on
the ACC with LSF following-distance setting, as
follows:
Short: 8.2 ft (2.5 m)
Middle: 9.8 ft (3.0 m)
Long: 13.1 ft (4.0 m)
Extra Long: 16.4 ft (5.0 m) 2 To Set or Change Following-distance P. 360

uuWhen Driving uLane Keeping Assist System (LKAS)
*
382Driving
3. Keep your vehicle near the center of the
lane while driving.
u The dotted outer lines change to solid
ones once the system starts operating
after detecting the left and right lane
markings.
To cancel the LKAS:
Press the MAIN or LKAS button.
The LKAS is turned off every time you stop the
engine, even if you turned it on the last time
you drove the vehicle.
Models with ACC is shown.
■
To cancel
1 When the System can be Used
The LKAS temporarily deactivates when it fails to
detect lane lines. When the system detects the lines
again, it comes back on automatically.1To cancel
Pressing the MAIN button also turns ACC with LSF
on and off.
Pressing the MAIN button also turns cruise control
on and off.Models with ACCModels without ACC
MAIN ButtonLKAS Button

387
uuWhen Driving uVehicle Stability Assist (VSA ®), aka Electronic Stability Control (ESC), System
Driving
This button is on the driver side control panel.
To partially turn the VSA features on and off,
press and hold it until you hear a beep.
The traction control stops fully functioning,
allowing the wheels to spin more freely at low
speed. The VSA ® OFF indicator will also 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 ® OFF Button
1 Vehicle Stability Assist (VSA ®), aka Electronic Stability Control (ESC), System
With the button pressed, your vehicle will have
normal braking and cornering ability, but VSA ®
traction and stability enhancement becomes less
effective.
In certain unusual conditions when your vehicle gets
stuck in shallow mud or fresh snow, it may be easier
to free it with the button pressed.
When the button is pressed, the traction control
function becomes less effective. This allows for the
wheels to spin more freely at low speed. You should
only attempt to free your vehicle with the button
pressed if you are not able to free it without.
Immediately after freeing your vehicle, be sure to
press the button again. We do not recommend
driving your vehicle with the button pressed
(indicator on).
You may hear a motor sound coming from the
engine compartment while system checks are being
performed immediatel y after starting the engine or
while driving. This is normal.
VSA ® OFF Indicator

396Driving
BrakingBrake SystemUse the parking brake to keep the vehicle stationary when parked. You can
manually apply and release, or automatically release it.■Manual operations
Use the electric parking brake switch to apply or release the brake. Manually
releasing the parking brake using the switch helps your vehicle start slowly and
smoothly when facing down hill on steep hills.
■To apply manually
Pull the electric parking brake switch up gently
and securely. u The electric parking brake indicator
comes on.
■
Parking Brake
1Parking Brake
You may hear the elect ric parking brake system
motor operating from the rear wheel area when you
apply or release the parking brake, or set the power
mode to OFF. This is normal.
The brake pedal may slightly move due to the electric
parking brake system operation when you apply or
release the parking brake. This is normal.
You cannot apply or release the parking brake if the
battery goes dead. 2 Jump Starting P. 498
If you pull up the electric parking brake switch while
driving, all four brakes get applied, not the parking
brake.
In the following situations, the parking brake
automatically operates.•When the vehicle stops more than 10 minutes
while ACC with LSF
* is activated.
•When the driver’s seat belt is unfastened while your
vehicle is stopped automatically by ACC with LSF
*.
•When the engine is turned off while ACC with LSF
*
is activated.
•When the vehicle stops with the automatic brake
hold system activated for more than 10 minutes.•When the driver’s seat belt is unfastened while
your vehicle is stopped and brake hold is applied.•When the engine is turned off while brake hold is
applied.•When there is a problem with the Brake Hold
System.
Electric Parking
Brake Switch
Models with electronic gear selector
Electric Parking
Brake Switch
Models with shift lever* Not available on all models

uuBraking uBrake System
400Driving
Keeps the brake applied after releasing the brake pedal until the accelerator pedal is
pressed. You can use this system while the vehicle is temporarily stopped, such as
when you stop at a traffic light.■
Automatic Brake Hold
1Automatic Brake Hold
3
WARNING
Activating the automatic brake hold system
on steep hills or slippery roads may still
allow the vehicle to move if you remove
your foot from the brake pedal.
If a vehicle unexpec tedly moves, it may
cause a crash resulting in serious injury or
death.
Never activate the automatic brake hold
system or rely on it to keep a vehicle from
moving when stopped on a steep hill or
slippery roads.
3
WARNING
Using the automatic brake hold system to
park the vehicle may result in the vehicle
unexpectedly moving.
If a vehicle moves unexpectedly, it may
cause a crash, resulting in serious injury or
death.
Never leave the vehicle when braking is
temporarily kept by automatic brake hold
and always park the vehic le by putting the
transmission in
( P and applying the parking
brake.
■Turning on the system
Fasten your seat belt
properly, then start the
engine. Press the
automatic brake hold
button.●The automatic brake
hold system indicator
comes on. The system
is turned on.
■Activating the system
Depress the brake pedal
to come to a complete
stop. The transmission
must be in
( D or
(N.
●The automatic brake
hold indicator comes
on. Braking is kept for
up to 10 minutes.●Release the brake
pedal after the
automatic brake hold
indicator comes on.
■Canceling the system
Depress the accelerator
pedal while the
transmission is in
( D or
(R. The system is
canceled and the vehicle
starts to move.
●The automatic brake
hold indicator goes
off. The system
continues to be on.Accelerator Pedal
Brake Pedal
Automatic Brake
Hold Button
Goes
Off
On On On
On
On
U.S.
Canada

402
uuBraking uAnti-lock Brake System (ABS)
Driving
Anti-lock Brake System (ABS)Helps prevent the wheels from locking up, and help s you retain steering control by
pumping the brakes rapidly, much faster than you.
The electronic brake distribution (EBD) system, which is part of the ABS, also
balances the front-to-rear braking distribution according to vehicle loading.
You should never pump the brake pedal. Let the ABS work for you by always
keeping firm, steady pressure on the brake pedal. This is sometimes referred to as
“stomp and steer.”■ABS operation
The brake pedal may pulsate slightly when the ABS is working. Keep holding the
pedal firmly down. On dry pavement, you will need to press on the brake pedal very
hard before the ABS activates. However, you may feel the ABS activate immediately
if you are trying to stop on snow or ice.
When the vehicle speed goes under 6 mph (10 km/h), the ABS stops.■
ABS
1 Anti-lock Brake System (ABS)NOTICEThe ABS may not function correctly if you use an
incorrect tire type and size.
When the ABS indicator comes on while driving,
there may be a problem with the system.
While normal braking is not affected, there is a
possibility of the ABS not operating. Have your
vehicle checked by a dealer immediately.
The ABS does not reduce the time or distance it takes
to stop the vehicle. It only helps with steering control
during hard braking.
In the following cases, your vehicle may need more
stopping distance than a vehicle without the ABS:•When driving on rough road surfaces, including
when driving on uneven surfaces, such as gravel or
snow.•When tire chains are installed.
You may hear a motor sound coming from the
engine compartment while system checks are being
performed immediatel y after starting the engine or
while driving. This is normal.

404
uuBraking uCollision Mitigation Braking System
TM (CMBS
TM)*
Driving
Collision Mitigation Braking System
TM
(CMBS
TM
)*
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 a
potential 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 System
TM (CMBS
TM)*
Important Safety Reminder
The CMBS
TM is designed to reduce the severity of an
unavoidable collision. It does not prevent collision 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 CMBSTM may not activate or may not detect a
vehicle in front of your vehicle under certain
conditions: 2 CMBSTM Conditions and Limitations P. 408
You can read about handling information for the
camera equipped with this system. 2 Front Sensor Camera
* P. 351
The system starts monitoring the roadway ahead when your vehicle speed is about
3 mph (5 km/h) and there is a vehicle in front of you. The radar sensor is
in the front grille.
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* Not available on all models

427
uuBefore Performing Maintenance uSafety When Performing Maintenance
Maintenance
Safety When Performing MaintenanceSome of the most important safety precautions are given here.
However, we cannot warn you of every conc eivable hazard that can arise in
performing maintenance. Only you can decide whether or not you should perform
a given task.
• To reduce the possibility of fire or explosion, keep cigarettes, sparks, and flames
away from the battery and all fuel related parts.
• Never leave rags, towels, or other flammable objects under the hood.
u Heat from the engine and exhaust can ignite them causing a fire.
• To clean parts, use a commercially available degreaser or parts cleaner, not
gasoline.
• Wear eye protection and protective clothing when working with the battery or
compressed air.
• Engine exhaust contains carbon monoxide, which is poisonous and can kill you.
u Operate the engine only when there is sufficient ventilation.
• The vehicle must be in a stationary condition.
u Make sure your vehicle is parked on level ground, the parking brake is set, and
the engine is off.
• Be aware that hot parts can burn you.
u Make sure to let the engine and exhaust system cool thoroughly before
touching vehicle parts.
• Be aware that moving parts can injure you.
u Do not start the engine unless instructed, and keep your hands and limbs away
from moving parts.
u Do not open the hood while the Auto Idle Stop function
* is activated.
■
Maintenance Safety
■
Vehicle Safety
1Safety When Performing Maintenance
3
WARNING
Improperly maintaining this vehicle or
failing to correct a problem before driving
can cause a crash in which you can be
seriously hurt or killed.
Always follow the inspection and
maintenance recommendations according
to the schedules in this owner’s manual.
3
WARNING
Failure to properly follow maintenance
instructions and precautions can cause you
to be seriously hurt or killed.
Always follow th e procedures and
precautions in this owner’s manual.
* Not available on all models