Page 417 of 657

uuWhen Driving uStarting the Engine
416
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 tailgate 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. 2Heated Steering Wheel
* P. 227
2 Front Seat Heaters and Ventilation*
P. 228
* Not available on all models
20 ACURA RDX-31TJB6111.book 416 ページ 2020年2月11日 火曜日 午後2時6分
Page 433 of 657

uuWhen Driving uAuto Idle Stop
432
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.
• 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 ba ttery 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 use, and the temperature is set to the Hi or Lo.
• is ON (indicator on).
• The dynamic mode is changed to Snow or Sport+ mode.
■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. 413
When ACC with Low Speed Follow is in operation,
the vehicle stops without de pressing the brake pedal
and Auto Idle Stop may activate.
Pressing the ENGINE START/STOP button changes
the power mode to OFF even while Auto Idle Stop is
in operation. Once in O FF, the engine no longer
restarts automatically. Follow the standard procedure
to start the engine. 2 Starting the Engine P. 413
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Page 434 of 657
433
uuWhen Driving uAuto Idle Stop
Continued
Driving
■Auto Idle Stop may not activate when:
• The vehicle is stopped by braking suddenly.
• The steering wheel is operated.
• Altitude is high.
• The climate control system is in use, an d there is a significant difference between
the set temperature and the actual interior temperature.
• The climate control system is in use, and humidity in the interior is high.
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Page 435 of 657

uuWhen Driving uAuto Idle Stop
434
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. 497
■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 put into
(R, (S, and (P, or taken out of (N and put into (D.
• The pressure on the brake pedal is redu ced and the vehicle starts moving while
stopped on an incline.
• The brake pedal is 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.
• The dynamic mode is changed to Snow or Sport+ mode.
■The Engine Automatically Restarts When:1The 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.
If the automatic brake hold system has been turned
off, or if there is a problem with the system, the
engine will restart automatically when you release
the brake pedal. 2 Automatic Brake Hold P. 497
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Page 491 of 657
uuAcuraWatchTMuFront Sensor Camera
490
Driving
1Front Sensor Camera
If the Some Driver Assist Systems Cannot
Operate: Camera Temperature Too High message
appears:
•Use the climate control system to cool down the
interior and, if necessary, also use defroster mode
with the airflow directed towards the camera.
•Start driving the vehicle to lower the windshield
temperature, which cool s down the area around
the camera.
If the Some Driver Assist Systems Cannot
Operate: Clean Front Windshield message
appears:
•Park your vehicle in a sa fe place, and clean the
windshield. If the message does not disappear after
you have cleaned the windshield and driven for a
while, have your vehicle checked by a dealer.
20 ACURA RDX-31TJB6111.book 490 ページ 2020年2月11日 火曜日 午後2時6分
Page 528 of 657

527
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 528
Safety When Performing Maintenance ..529
Parts and Fluids Used in Maintenance Service ........................................... 530
Maintenance Minder
TM..................... 531
Maintenance Under the Hood Maintenance Items Under the Hood .. 538
Opening the Hood ........................... 539
Engine Compartment Cover ............. 540
Recommended Engine Oil ................ 541
Oil Check ......................................... 542
Adding Engine Oil ............................ 543 Changing the Engine Oi
l and Oil Filter... 544
Engine Coolant ................................ 546
Transmission Fluid ............................ 548
Brake Fluid ....................................... 549
Refilling Window Wa sher Fluid......... 550
Replacing Light Bulbs ....................... 551Checking and Maintaining Wiper
Blades .......................................... 555
Checking and Maintaining Tires
Checking Tires ................................. 560
Tire and Loading Information Label .. 561
Tire Labeling .................................... 561
DOT Tire Quality Grading (U.S. Vehicles).. 563
Wear Indicators ............................... 565
Tire Service Life ................................ 565
Tire and Wheel Replacement ........... 566
Tire Rotation .................................... 567
Winter Tires ..................................... 568
Battery ............................................... 569
Remote Transmitter Care Replacing the Button Battery ........... 571
Climate Control System Maintenance.. 573Cleaning
Interior Care .................................... 575
Exterior Care.................................... 577
Accessories and Modifications ........ 580
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Page 564 of 657

563
uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
Continued
Maintenance
DOT Tire Quality Grading (U.S. Vehicles)
The tires on your vehicle m eet all U.S. Federal Safety
Requirements. All tires are also graded for treadwear, traction,
and temperature performance according to Department of
Transportation (DOT) standards. The following explains these
gradings.
Quality grades can be found where applicable on th e tire sidewall
between tread shoulder and maximum section width.
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested un der controlled conditions on a
specified government test course. For example, a tire graded 150
would wear one and one-half (1 1/2) times as well on the
government course as a tire graded 100. The relative performance
of tires depends upon the actual co nditions of their use, however,
and may depart significantly from the norm due to variations in
driving habits, service practi ces and differences in road
characteristics and climate.
■Uniform Tire Quality Grading
■Treadwear
1 Uniform Tire Quality Grading
For example:
Treadwear 200
Traction AA
Temperature A
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.
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Page 574 of 657

573
Maintenance
Climate Control System Maintenance
Air Conditioning
To ensure proper and safe operation, the Society of Automotive Engineers (SAE
J2845) recommends that the refrigerant system only be serviced by trained and
certified technicians.
Never repair or replace the air conditio ning evaporator (cooling coil) with one
removed from a used or salvaged vehicle.
New replacement mobile air conditioning evaporators must be certified (and
labeled) as meeting SAE Standard J2842.1 Climate Control System Maintenance
NOTICE
Vented refrigerant is harmful to the environment.
To avoid refrigerant from venting, never replace the
evaporator with one re moved from a used or
salvaged vehicle.
Refrigerant in your vehicle’s air conditioning system is
flammable and can be igni ted during servicing if
proper procedures are not followed.
The air conditioner labe l is found under the hood:
2 Safety Labels P. 72
2 Specifications P. 634
Canadian models
: Caution
: Flammable
Refrigerant
: Requires Registered
Technician to Service
: Air Conditioning
System
20 ACURA RDX-31TJB6111.book 573 ページ 2020年2月11日 火曜日 午後2時6分