2019 Acura MDX climate control

Continued485
uuWhen Driving uAuto Idle Stop
Driving
The vehicle stops with the gear position in (D and the brake pedal depressed.
When you put the transmission into
(P, the Auto Idle Stop continues to operate,
even if the brake pedal is released. u If you change the gear position, th e engine may automatically restarts.
■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, and 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).
• When the rear fan is set to maximum speed.
u Auto Idle Stop may not activate under other conditions when the rear climate
control system is in use.
■Auto Idle Stop Activates When:1 Auto Idle Stop Activates When:
When ACC with LSF is in operation, the vehicle stops
without depressing the br ake pedal and Auto Idle
Stop may activate.
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. 467
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. 467
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486
uuWhen Driving uAuto Idle Stop
Driving
■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 repeated ly accelerated and dece lerated 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.
• The climate control system is in use, and humidity in the interior is high.
• The rear fan is set to maximum speed.
u Auto Idle Stop may not ac tivate under other conditions when the rear climate
control system is in use.
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Continued487
uuWhen Driving uAuto Idle Stop
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. 535
■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 or (S, or when it is set from (N to (D.
u If you put the tra nsmission into
(P after the Auto Idle Stop activates, the Auto
Idle Stop continues to operate. In this case, the engine restarts when you
change the gear position other than
(P. When changing the gear position, the
brake pedal must be firmly depressed.
• 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 repeat edly 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 vehicle ahead of you starts again when your vehicle stops automatically with
ACC with LSF.
■The Engine Automatically Restarts When: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.
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. 535
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491
uuWhen Driving uFront Sensor Camera
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 winds hield and driven for a
while, have your vehicle checked by a dealer.
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575
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 576
Safety When Performing Maintenance ..577
Parts and Fluids Used in Maintenance Service...578Maintenance MinderTM..................... 579
Maintenance Under the Hood
Maintenance Items Under the Hood .. 583
Opening the Hood ........................... 584
Engine Compartment Cover ............. 585
Recommended Engine Oil ................ 586
Oil Check ......................................... 587
Adding Engine Oil ............................ 588
Changing the Engine Oil and Oil Filter ...589 Engine Coolant ................................ 591
Transmission Fluid ............................ 593
Brake Fluid ....................................... 594
Refilling Window Washer Fluid......... 594
Replacing Light Bulbs ....................... 595Checking and Maintaining Wiper Blades... 600Checking and Maintaining Tires
Checking Tires ................................. 604
Tire and Loading Information Label .. 605
Tire Labeling .................................... 605
DOT Tire Quality Grading (U.S. Vehicles).. 607Wear Indicators................................ 609
Tire Service Life ................................ 609 Tire and Wheel Replacement ........... 610
Tire Rotation .................................... 611
Winter Tires ..................................... 612
Battery ............................................... 613
Remote Transmitter Care Replacing the Button Battery ........... 615
Remote Control and Wireless Headphone Care
*........................... 617Climate Control System Maintenance.. 619Cleaning Interior Care .................................... 620
Exterior Care.................................... 622
Accessories and Modifications ........ 625
* Not available on all models
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607
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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619
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.
Dust and Pollen Filter
The climate control system is equipped with a dust and pollen filter that collects
pollen, dust, and other debris in the air. The Maintenance MinderTM messages will let
you know when to replace the filter.
We recommend that you replace the dust an d pollen filter sooner when using your
vehicle in areas with high concentrations of dust.
U.S. models
1 Air Conditioning
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. 75
2 Specifications P. 676
1Dust and Pollen Filter
If the airflow from the climate control system
deteriorates noticeably, and the windows fog up
easily, the filter may need to be replaced. Please
contact a dealer for replacement.
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657
Handling the Unexpected
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On
■Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
■What to do as soon as the indicator comes on
1. Immediately park the vehicle on level ground in a safe place.
2. If necessary, turn the hazard warning lights on.
■What to do after parking the vehicle
1. Stop the engine and let it sit for approximately three minutes.
2. Open the hood and check the oil level.
2 Oil Check P. 587
3.Start the engine and check th e low oil pressure indicator.
u The indicator goes off: Start driving again.
u The indicator does not go off within 10 seconds: Immediately stop
the engine and contact a dealer for repairs.
If the Charging System Indicator Comes On
■Reasons for the indicator to come on
Comes on when the battery is not being charged.
■What to do when th e indicator comes on
Turn off the climate control system, rear defogger, and other electrical
systems, and immediately co ntact a dealer for repairs.
1If the Low Oil Pressure Indicator Comes On
NOTICE
Running the engine with low oil pressure can cause
serious mechanical damage almost immediately.
1If the Charging System Indicator Comes On
If you need to stop temporarily, do not turn off the
engine. Restarting the engi ne may rapidly discharge
the battery.
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