Page 625 of 712

624
Maintenance
Battery
Checking the Battery
The condition of the battery is monitored by a
sensor located on the negative terminal of the
battery. If there is a problem with this sensor,
the driver information in terface will display a
warning message. If this happens, have your
vehicle inspected by a dealer.
Check the battery terminals for corrosion
monthly.
If your vehicle’s battery is disconnected or goes dead:
• The audio system is disabled.
2 Audio System Theft Protection P. 241
•The clock resets.
2 Clock P. 128
•
The immobilizer system needs to be reset.
2 Immobilizer System Indicator P. 98
1Battery
WARNING: Battery post, terminals,
and related accessories contain lead
and lead compounds.
Wash your hands after handling.
When you find corrosion, cl ean the battery terminals
by applying a baking powder and water solution.
Clean the terminals with a damp towel. Cloth/towel
dry the battery. Coat the terminals with grease to
help prevent future corrosion.
When replacing the battery, the replacement must be
of the same specifications.
Consult a dealer for more information.
3WARNING
The battery gives off explosive hydrogen
gas during normal operation.
A spark or flame can cause the battery to
explode with enough force to kill or
seriously hurt you.
When conducting any battery
maintenance, wear prot ective clothing and
a face shield, or have a skilled technician do
it.
Battery
Canadian models only
22 ACURA MDX-31TYA6000_02.book 624 ページ 2020年11月5日 木曜日 午前11時39分
Page 626 of 712

625
uuBattery uCharging the AGM Battery
Maintenance
Charging the AGM Battery
AGM labeled batteries like those installed in your vehicle require a compatible
charger to be properly charged. Damage to the battery can result if the battery is
charged improperly or with the wrong equi pment. For more information on how to
charge your vehicle’s AGM battery, consult a dealer.1 Battery
The battery installed in this vehicle is specifically
designed for a model wi th Auto Idle Stop.
Using a battery other than this specified type may
shorten the battery life, a nd prevent Auto Idle Stop
from activating. If you need to replace the battery,
make sure to select the specified type and size. Ask a
dealer for more details.
The indicators for the Vehicle Stability Assist
TM (VSA ®)
system, Adaptive Cruise Control (ACC) with Low
Speed Follow, safety suppo rt, and low tire pressure/
TPMS may come on after reconnecting the battery.
Drive a short distance at more than 12 mph (20 km/h).
The indicators should go off. If they do not, have your
vehicle checked by a dealer.
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Page 627 of 712

626
Maintenance
Remote Transmitter Care
Replacing the Button Battery
If the indicator does not come on when the button is pressed, replace the battery.
1. Remove the built-in key.
2. Pry on the edge of the cover using a flat-tip
screwdriver to remove the cover.
u Wrap the flat-tip screwdriver with a cloth
to prevent scratches.
3. Make sure to replace the battery with the
correct polarity.
1 Replacing the Button Battery
NOTICE
An improperly disposed of battery can damage the
environment. Always conf irm local regulations for
battery disposal.
Replacement batteries are commercially available or
at a dealer.
3WARNING
CHEMICAL BURN HAZARD
The battery that powers the remote
transmitter can cause severe internal burns
and can even lead to death if swallowed.
Keep new and used batteries away from
children.
If you suspect that a child has swallowed
the battery, seek medical attention
immediately.
Models without two-way keyless access remote
Battery type: CR2032
Battery Cover
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Page 628 of 712
627
uuRemote Transmitter Care uReplacing the Button Battery
Maintenance
If the indicator does not come on when the button is pressed, replace the battery.
1. Remove the built-in key.
2. Pry on the edge of the cover using a flat-tip
screwdriver to remove the cover.
u Wrap the flat-tip screwdriver with a cloth
to prevent scratches.
3. Make sure to replace the battery with the
correct polarity.
Models with two-way keyless access remote1Replacing the Button Battery
NOTICE
The Remote transmitter is equipped with two
batteries: A standard replaceable CR2032 coin
button battery and an in tegral non-replaceable
rechargeable battery. To prevent permanent damage
to the rechargeable battery, replace the CR2032
battery every three to four years.
Models with two-way keyless access remote
Battery type: CR2032
Battery Cover
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Page 633 of 712

uuCleaning uExterior Care
632
Maintenance
• Make sure to follow the instructions indicated on the automated car wash.
• Fold in the door mirrors.
• For models equipped with automatic inte rmittent wipers, turn the wipers off.
• Keep sufficient distance between the cleaning nozzl e and the vehicle body.
• Take particular care around the windows. Standing too close may cause water to
enter the vehicle interior.
• Do not spray high pressure water directly into the engine compartment. Instead,
use low pressure water and a mild detergent.
A good coat of automotive body wax helps protect your vehicle’s paint from the
elements. Wax will wear off over time and expose your vehicle’s paint to the
elements, so reapply as necessary.
If you get gasoline, oil, engine coolant, or battery fluid on resin coated parts, they
may be stained or the coating may peel. Promptly wipe it away using a soft cloth and
clean water.
Wipe using a glass cleaner.
■Using an Automated Car Wash
■Using High Pressure Cleaners
■Applying Wax
■Maintaining the Bumpers and Other Resin Coated Parts
■Cleaning the Window
1 Using an Automated Car Wash
When using an automated car wash that pulls the
vehicle through with a conveyor, make sure the
transmission in
( N position.
2 If you want to keep the transmission in
(N
position [car wash mode] P. 446
1Applying Wax
NOTICE
Chemical solvents and st rong cleaners can damage
the paint, metal, and plasti c on your vehicle. Wipe
away spills immediately.
1 Maintaining the Bumpers an d Other Resin Coated Parts
Ask a dealer about the corr ect coating material when
you want to repair the painted surface of the parts
made of resin.
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Page 636 of 712

635
uuAccessories and Modifications uModifications
Maintenance
Modifications
Do not modify your vehicle in a manner that may affect its handling, stability, or
reliability, or install non-genuine Acura pa rts or accessories that may have a similar
effect.
Even minor modifications to vehicle systems can affect overall vehicle performance.
Always make sure all equipment is properly installed and maintained, and do not
make any modification to your vehicle or its systems that might cause your vehicle
to no longer meet federal, state, pr ovince, territory, and local regulations.
The on-board diagnostic port (OBD-II/SAE J1 962 connector) installed on this vehicle
is intended to be used with automobile system diagnostic devices or with other
devices that Acura has approved. Use of any other type of device may adversely
affect the vehicle’s electronic systems or allow them to be compromised, possibly
resulting in a system malfunction, drained battery, or other unexpected problems.
Do not modify or attempt to repair any of the electrical components.
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Page 638 of 712

637
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 638
If a Tire Goes Flat Changing a Flat Tire ......................... 639
Temporarily Repairi ng a Flat Tire....... 647
Handling of the Jack ......................... 661
Engine Does Not Start Checking the Engine ........................ 662
If the Keyless Access Remote Battery is Weak ... 663Emergency Engine Start ................... 664
Emergency Engine Stop ................... 665
If the Battery Is Dead ....................... 666
Overheating
How to Handle Overheating ............. 668 Indicator, Coming On/Blinking
If the Low Oil Pressure Warning Appears ....670
If the Charging System Indicator Comes On .. 671
If the Malfunction Indicator Lamp Comes
On or Blinks ................................... 671
If the Brake System Indicator (Red) Comes On or Blinks ................................... 672
If the Brake System Indicator (Red) Comes On or Blinks at the Same Time When the Brake
System Indicator (Amber) Comes On .. 673
If the Electric Power Steering (EPS) System
Indicator Comes On ........................... 674
If the Low Tire Pressure/TPMS Indicator Comes On or Blinks ....................... 675
If the Transmission System Indicator Blinks along with the Warning Message... 676
Fuses Fuse Locations ................................. 677
Inspecting and Changing Fuses ........ 683
Emergency Towing ........................... 685
If You Cannot Unlock the Fuel Fill Door ... 686
If You Cannot Open the Tailgate .... 687
Refueling Refueling From a Portable Fuel Container ... 688
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Page 663 of 712

662
Handling the Unexpected
Engine Does Not Start
Checking the Engine
If the engine does not start, check the starter.
Starter conditionChecklist
Starter doesn’t turn or turns
over slowly.
The battery may be dead. Check
each of the items on the right and
respond accordingly.Check for a message on the dr iver information interface.
●If the To start, touch start button With emblem side of remote message appears
2If the Keyless Access Remote Battery is Weak P. 663
uMake sure the keyless access remo te is in its operating range.
2ENGINE START/STOP Button Operating Range P. 166
Check the brightness of the interior lights.
Turn on the interior ligh ts and check the brightness.
●If the interior lights are dim or do not come on at all 2 Battery P. 624●If the interior lights come on normally
2 Fuses P. 677
2 Emergency Engine Start P. 664
The starter turns over normally
but the engine doesn’t start.
There may be a problem with a
fuse. Check each of the items on
the right and respond accordingly. Review the engine start procedure.
Follow its instructions, and try to start the engine again.
2
Starting the Engine P. 434
Check the immobilizer system indicator.
When the immobilizer system indicator is blinking, the engine cannot be started.
2Immobilizer System P. 157
Check the fuel level.
There should be enough fuel in the tank.
2 Fuel Gauge P. 104
Check the fuses.
Check all fuses, or have the vehicle checked by a dealer.
2Inspecting and Changing Fuses P. 683
If the problem continues:
2Emergency Towing P. 685
1Checking the Engine
If you must start the vehi cle immediately, use an
assisting vehicle or booster battery to jump start it.
2 If the Battery Is Dead P. 666
22 ACURA MDX-31TYA6000_02.book 662 ページ 2020年11月5日 木曜日 午前11時39分