stop start Acura TLX 2020 Owner's Guide
Page 363 of 589
362
Driving
When Driving
Starting the Engine
1.Make sure the parking brake is applied.
u The electric parking brake indicator 
comes on for 15 seconds when you pull 
up the electric parking brake switch.
2. Depress the brake pedal.
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 st art 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.Models with electronic gear selector
Electric Parking 
Brake Switch
Brake Pedal
ENGINE START
STOP
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Continued363
uuWhen Driving uStarting the Engine
Driving
1. Make sure the parkin g brake is applied.
u The electric parking brake indicator 
comes on for 15 seconds when you pull 
up the electric parking brake switch.
2. Check that the transmission 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
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. 540
The engine may not start if the keyless access remote 
is subjected to strong radio waves.
Do not hold the  ENGINE START/STOP button to 
start the engine.
If the engine does not start,  wait at least 30 seconds 
before trying again.
The immobilizer system pr otects your vehicle from 
theft.
If an improperly c oded device is used, the engine’s 
fuel system is disabled. 2 Immobilizer System  P. 152Models with shift lever
Electric Parking 
Brake Switch
Brake Pedal
ENGINE
START
STOP
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364
uuWhen Driving uStarting the Engine
Driving
You can turn the engine off when the vehicle is completely stopped.
1. Put the transmission into 
(P.
2. Press the  ENGINE START/STOP  button.
■Stopping the Engine
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uuWhen Driving uStarting the Engine
366
Driving
■To stop the engine
Press and hold the   button 
for one second.
Go within the range, 
and try again.
Amber LED: Blinks when any 
button is pressed. Red LED:
●Comes on for one second to let you 
know that the engine has stopped.
●Blinks when the remote is out of 
the keyless access system range. 
The engine will not stop.
1
Remote Engine Start*
•Another registered keyless access remote is in the 
vehicle.
•There is any antenna failure.•The door is unlocked with the built-in key.
•The engine oil pressure is low.
•The engine coolant temper ature is extremely high.•The telematics unit malfunctions.
•The security system alarm is not set.
Before starting the engine, make sure to check the 
door lock status using the remote. When you press 
the   button, wait for the green LED to blink. If 
the red LED turns on, the doors and trunk did not 
lock, and the engine does not start.
While the engine is running, the vehicle will 
automatically preconditi on inside the vehicle.
When it is warm outside:
•The climate control system is activated in 
recirculation mode.
•The seat ventilation is activated*.
When it is cold outside:
•The defroster is activated at a moderately warm 
temperature.
•The rear defogger and door mirror heaters are 
activated.
•The seat heaters and heated steering wheel are 
activated*.
2 Heated Steering Wheel* P. 202
2 Front Seat Heaters and Seat 
Ventilation
* P. 203
* Not available on all models
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uuWhen Driving uStarting the Engine
Driving
1. Depress the brake pedal and press the  ENGINE START/STOP button 
simultaneously.
2. Keeping your right foot on the br ake pedal, put the transmission into 
(D. Select 
(R when reversing.
3. With the parking brake applied, release  the brake pedal and gently depress the 
accelerator pedal.
u Make sure the electric parki ng brake indicator goes off.
2Parking Brake P. 429
2 If the Transmission System Indicator Blinks along with the Warning 
Message P. 554
■Starting to Drive1Starting to Drive
You can also release the  parking brake by pressing 
the electric parking brake sw itch while depressing the 
brake pedal.
When facing downhill, you  can start your vehicle 
more smoothly by manually releasing it with the 
electric parking brake switch  than by releasing it with 
the accelerator pedal.
The engine stops when the  gear position is changed 
from 
( P before the  ENGINE START/STOP  button is 
pressed. Follow the step  1 when starting to drive.
When the engine was started using the two-way 
keyless access remote*
When the engine was started using the two-way keyless access remote*
When the engine was started in any case
* Not available on all models
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uuWhen Driving uShifting
374
Driving
■If you want to keep  the transmission in (N position [car wash mode]
With the engine running:
1. Press and hold the brake pedal.
2. Select 
(N, then release the button to display (N (Neutral) hold mode on the 
multi-information display.
3. Press and hold 
(N again for two seconds.
u This puts the vehicle in car wash mode which must be used when your vehicle 
is pulled through a conveyor type automatic car wash where you or an 
attendant do not remain in the vehicle.
If the ENGINE START/STOP button is pressed 
after car wash mode has been activated, the 
power mode will change to ACCESSORY and 
a message will be displayed on the multi-
information display.u The gear position remains in 
(N with the 
power mode in ACCESSORY for 15 
minutes, then, it automatically changes 
to 
(P and the power mode changes to 
OFF.
u Manually changing to 
(P cancels 
ACCESSORY mode. The 
(P indicator 
comes on and the power mode changes 
to OFF. You must always shift to 
(P 
when car wash mode is no longer 
needed.
1 If you want to keep the transmission in (N position [car wash 
mode]
To keep the vehicle in 
(N position, you can also 
follow this procedure:
While the power mode  is on, select 
(N, and then 
within five seconds, press the  ENGINE START/STOP 
button.
The transmission may not stay in 
( N position while 
the following indicators ar e on or when the message 
below appears:
•Malfunction indicator lamp
•Transmission system indicator
•Charging system indicator•The  Charging System Problem  message on the 
multi-information display.
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382
uuWhen Driving uAuto Idle Stop*
Driving
Auto Idle Stop*
To help maximize fuel econ omy, the engine automatica lly stops when the vehicle 
comes to a stop, depending on environmental and vehicle operating conditions. The 
indicator (green) comes on. The engine then restarts once the vehicle is 
about to move again, or depending on 
environmental and vehicle conditions, and the 
indicator (green) goes off.
2The Engine Automatically Restarts When: 
P. 386
The environmental and vehicle conditions that 
impact Auto Idle Stop system operation are 
varied.
2Auto Idle Stop Activates When:  P. 384, 385
If the driver’s door is opened while the 
indicator (green) comes on, a buzzer sounds 
to notify you that the Auto Idle Stop function 
is in operation.
A message associated with Auto Idle Stop 
appears on the multi-information display.
2Indicators P. 89
2 Customized Features  P. 124, 301
1Auto Idle Stop*
The 12-volt battery insta lled in this vehicle is 
specifically designed for a m odel with Auto Idle Stop. 
Using a 12-volt battery other than this specified type 
may shorten the battery life , and prevent Auto Idle 
Stop from activati ng. If you need to replace the 
battery, make sure to select the specified type. Ask a 
dealer for more details.
The duration of the Au to Idle Stop operation:
•Increase in the ECON mode, compared to when 
the ECON mode is off, with climate control in use.
Auto Idle Stop 
Indicator (Green)
* Not available on all models
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Continued383
uuWhen Driving uAuto Idle Stop*
Driving
To turn the Auto Idle  Stop system off, press 
this button. The Auto Id le Stop system stops.
u Auto Idle Stop system will stop and the 
Indicator (amber) will come on.
The Auto Idle Stop syst em is turned on every 
time you start the engine, even if you turned it 
off the last time you drove the vehicle.
■Auto Idle Stop System ON/OFF1 Auto Idle Stop System ON/OFF
Pressing the Auto Idle Stop OFF button restarts the 
engine during the Auto  Idle Stop activated.
Auto Idle Stop System 
Indicator (Amber)
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uuWhen Driving uAuto Idle Stop*
384
Driving
The vehicle stops with  the gear position in (D and the brake pedal depressed.
■Auto Idle Stop does not activate when:
• The Auto Idle Stop  OFF button is pressed.
• The driver’s seat belt is not fastened.
• The engine coolant temperature is low or high.
• The transmission fluid temperature is low or high.
• The vehicle comes to a stop again befo re the vehicle speed reaches 3 mph (5 
km/h) after the engine starts.
• Stopped on a steep incline.
• The transmission is in  a position other than 
(D or Sport+.
• The engine is started with the hood open.
u Turn off the engine. Close the hood before you restart the engine to activate 
Auto Idle Stop.
• The battery charge is low.
• The internal temperature of the  battery is 14°F (−10°C) or less.
• The climate control system is in use, an d the outside temperature is below −4°F 
(−20°C) or over 104°F (40°C).
• The climate control system is in us e, and the temperature is set to Hi or  Lo.
•  is ON (indicator on).
■Auto Idle Stop Activates When:1Auto Idle Stop Activates When:
Do not open the hood while the Auto Idle Stop 
function is activated. If  the hood is opened, the 
engine will not re start automatically.
In this case, restart the engine with the  ENGINE 
START/STOP button. 2 Starting the Engine  P. 362
Pressing the ENGINE START/STOP button changes 
the power mode to ACCESSORY even while Auto Idle 
Stop is in operation. Once  in ACCESSORY, the engine 
no longer restarts automatica lly. Follow the standard 
procedure to start the engine. 2 Starting the Engine  P. 362
When ACC with Low Speed Follow is in operation, 
the vehicle stops without de pressing the brake pedal 
and Auto Idle Stop may activate.
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uuWhen Driving uAuto Idle Stop*
386
Driving
• The brake pedal is released (without the  automatic brake hold system activated).
• The accelerator pedal is depressed (with the automatic brake hold system 
activated).
2 Automatic Brake Hold P. 433
■The engine restarts even if the brake pedal is depressed*1 when:
• The Auto Idle Stop  OFF button is pressed.
• A steering wheel is operated.
• The transmission is in  a position other than 
(D or Sport+.
• The pressure on the brake pedal is redu ced and the vehicle starts moving while 
stopped on an incline.
• The pressure on the brake pedal is repeated ly 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 us e, and the difference between the set 
temperature and actual interior  temperature becomes significant.
• The climate control system is bein g used to dehumidify the interior.
• The vehicle ahead of you starts again when  your vehicle stops automatically with 
ACC with Low Speed Follow.
Briefly keeps the brake applied after releasi ng the brake pedal to restart the engine. 
This can keep your vehicle from unexpectedly moving while on an incline.
■The Engine Automatically Restarts When:
■Starting Assist Brake Function
1 The Engine Automatically Restarts When:
If you are using an electroni c device during Auto Idle 
Stop, the device may tempor arily be turned off when 
the engine restarts.
1 The engine restarts even if the brake pedal is depressed*1 when:
*1: With the automatic brake hold system activated, 
you can release the brake pe dal during Auto Idle Stop 
is in operation.
However, if the automati c brake hold system has 
been turned off, or if th ere is a problem with the 
system, the engine will restart automatically when 
you release the brake pedal. 2 Automatic Brake Hold  P. 433
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