warning Acura MDX 2018 Owners Manual
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610
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all season marked  M+S tires, snow tires, 
or tire chains; reduce speed; and maintain sufficient distance be tween vehicles when 
driving.
Be particularly careful when operating  the steering wheel or brakes to prevent 
skidding.
Use tire chains, snow tires, or all season ti res when necessary or according to the law.
When mounting, refer to  the following points.
For winter tires:
• Select the size and load ranges that are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire clearance, we strongly recommend using the 
chains listed below:
• Follow the chain manufacturer’s instruction when installing. Mount them as 
tightly as you can.
• Check that the chains do not to uch the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Cable Chain Super Z LT - ZT735
1Winter Tires
NOTICE
Traction devices that are th e wrong size or improperly 
installed can damage your vehicle’s brake lines, 
suspension, body, and wheels.  Stop driving if they are 
hitting any part  of the vehicle.
When tire chains are mounted, follow the chain 
manufacturer’s instructi ons regarding vehicle 
operational limits.
If your vehicle is equipped with summer tires, be 
aware that these tires are not designed for winter 
driving conditions. For more information, contact a 
dealer.
3WARNING
Using the wrong chains, or not properly 
installing chains, can damage the brake 
lines and cause a crash in which you can be 
seriously injured or killed.
Follow all instruction s in this owner’s 
manual regarding the selection and use of 
tire chains.
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611
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 multi-information display (MID) will 
display a warning message. If this happens, 
have you 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. 236
•The clock resets.
2 Clock  P. 138
•The navigation system* is disabled.
2 Refer to navigation system manual
Charging the Battery*
Disconnect both battery cables to prevent damaging your vehicle’s electrical system. 
Always disconnect the negative (–) cable first, and reconnect it last.
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
* Not available on all models
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613Continued
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. Remove the upper half of the cover by 
carefully prying on the edge with a coin.
u Remove carefully to avoid losing the 
buttons.
u Wrap a coin with a cloth to prevent 
scratching the transmitter.
3. Make sure to replace the battery with the 
correct polarity.
1Replacing 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 remote control engine start system
Battery type: CR2032
Battery
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615Continued
Maintenance
Remote Control and Wireless Headphone Care*
Replacing the Battery
If it takes several pushes on the remo te control buttons to operate the rear 
entertainment system, replace the battery.
1.Remove the cover.
2. Make sure to replace the battery with the 
correct polarity.
■Remote Control
Models with Rear Entertainment System
1Replacing the 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 control 
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.
Battery type: BR3032
* Not available on all models
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623
Maintenance
Accessories and Modifications
Accessories
When installing accessories, check the following:
• Do not install accessories on the windsh ield. They can obstruct your view and 
delay your reaction to driving conditions.
• Do not install any accessories over areas  marked SRS Airbag, on the sides or backs 
of the front seats, on front or side pillars, or near the side windows.
Accessories installed in these areas may  interfere with proper operation of the 
vehicle’s airbags or may be propelled into you or another occupant if the airbags 
deploy.
• Be sure electronic accessories do not overload electrical circuits  or interfere with 
proper operation of your vehicle.
2 Fuses  P. 658
•Before installing any electro nic accessory, have the installer contact a dealer for 
assistance. If possible, have a deal er inspect the final installation.
1Accessories and Modifications
Acura Genuine accessori es are recommended to 
ensure proper operati on on your vehicle.
3WARNING
Improper accessories or modifications can 
affect your vehicle’s handling, stability, and 
performance, and cause a crash in which 
you can be seriously hurt or killed.
Follow all instruction s in this owner’s 
manual regarding accessories and 
modifications.
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625
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 626
If a Tire Goes Flat Changing a Flat Tire
*....................... 627
Temporarily Repair ing a Flat Tire*..... 634
Engine Does Not Start Checking the Engine ........................ 646
If the Keyless Access Remote Battery is Weak ............................................. 647
Emergency Engine Stop ................... 648
Jump Starting .................................... 649 Overheating
How to Handle Overheating............. 651
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On ... 653
If the Charging System Indicator Comes  On ................................................. 653
If the Malfunction Indicator Lamp Comes  On or Blinks ................................... 654
If the Brake System Indicator (Red) Comes  On ................................................... 655
If the Speed-Sensitive Electric Power Steering 
(EPS) System Indicator Comes On........... 655
If the Low Tire Pressure/TPMS Indicator Comes On or Blinks ....................... 657
If the Transmission System Indicator Blinks  along with the Warning Message ...... 657
Fuses Fuse Locations ................................. 658
Inspecting and Changing Fuses ........ 665
Emergency Towing ........................... 666
When You Cannot Unlock the Fuel Fill Door.. 667
When You Cannot Open the Tailgate.. 668
Refueling........................................... 669
Refueling From a Portable Fuel Container.. 669
* Not available on all models
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627Continued
Handling the Unexpected
If a Tire Goes Flat
Changing a Flat Tire*
If a tire goes flat while driving, grasp the steering wheel firmly, and brake gradually 
to reduce speed. Then, stop in a safe plac e. Replace the flat tire with a compact 
spare tire. Go to a dealer as soon as possib le to have the full-size tire repaired or 
replaced.
1. Park the vehicle on firm, level, non-slip pery surface and apply the parking brake.
2. Change the gear position to 
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF 
(LOCK).
1 Changing a Flat Tire*
Periodically check the tire pressure of the compact 
spare. It should be set to the specified pressure. 
Specified Pressure: 60 psi (420 kPa, 4.2 kgf/cm
2)
When driving with the compact spare tire, keep the 
vehicle speed under 50 mph (80 km/h). Replace with 
a full-size tire as soon as possible.
The compact spare tire and wheel in your vehicle are 
specifically for this model. Do not use them with 
another vehicle. Do not us e another type of compact 
spare tire or wheel with your vehicle.
Do not mount tire chains on a compact spare tire. 
If a chain-mounted front tire  goes flat, remove one of 
the full-size rear tires and replace it with the compact 
spare tire. Remove the flat front tire and replace it 
with the full-size tire that was removed from the rear. 
Mount the tire chains on the front tire.
Do not use a puncture-repairing agent other than the 
one provided in the kit that came with your  vehicle (if 
equipped). If a different  agent is used, you may 
permanently damage the  tire pressure sensor.
* Not available on all models
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Continued631
uuIf a Tire Goes Flat uChanging a Flat Tire*
Handling the Unexpected
1. Place the jack under the jacking point 
closest to the tire to be changed.
2. Turn the end bracket cl ockwise as shown in 
the image until the top of the jack contacts 
the jacking point.
u Make sure that the jacking point tab is 
resting in the jack notch.
3. Raise the vehicle, using the jack handle bar 
and the jack handle, until the tire is off the 
ground.
■How to Set Up the Jack1How to Set Up the Jack
Do not use the jack with  people or luggage in the 
vehicle.
Use the jack provided in your vehicle.
Other jacks may not support  the weight (“load”) or 
may not fit the jacking point.
The following instructions must be followed to use 
the jack safely:
•Do not use while the engine is running.
•Use only where the ground is firm and level.•Use only at the jacking points.
•Do not get in the vehicl e while using the jack.
•Do not put anything on top of or underneath the 
jack.
3WARNING
The vehicle can easily roll off the jack, 
seriously injuring anyone underneath.
Follow the directions for changing a tire 
exactly, and no person should place any 
portion of their body under a vehicle that is 
supported by a jack.
Jacking Points
Jack Handle Bar
Wheel Nut Wrench as Jack Handle
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633
uuIf a Tire Goes Flat uChanging a Flat Tire*
Handling the Unexpected
1. Remove the center cap.
2. Place the flat tire face up under the hoist.
3. Insert the hoist bracke t into the center hole 
of the flat tire.
4. Turn the wheel nut wrench with the jack 
handle bar clockwise until the flat tire rests 
against the underbody of the vehicle and 
you hear the hoist click.
5. Securely store the jack and wheel nut 
wrench and jack handle bar back in the tool 
case. Store the case in the cargo area.
If you replace a flat tire wi th the spare tire, the low tire  pressure/TPMS indicator comes 
on while you are driving. After driving for  a few miles (kilometers), the indicator will 
start blinking for a short time and then stay on.  Tire Pressure Monitor Problem 
appears on the multi-information display (MID), but this is normal.
If you replace the tire with a specified  regular tire, the warning message on the MID 
and the low tire pressure/TPMS indicator  will go off after a few miles (kilometers).
■Storing the Flat Tire1Storing the Flat Tire
3WARNING
Loose items can fly around the interior in a 
crash and can seriously injure the 
occupants.
Store the jack and tools securely before 
driving.
Center Cap
Wheel Nut Wrench Jack Handle Bar
■TPMS and the Spare Tire1
TPMS and the Spare Tire
The system cannot monitor th e pressure of the spare 
tire. Manually check the spare tire pressure to be sure 
that it is correct.
Use the TPMS specific wheels. Each is equipped with 
a tire pressure sensor mount ed inside the tire behind 
the valve stem.
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uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire*
Handling the Unexpected
Temporarily Repairing a Flat Tire*
If the tire has a large cut or is otherwise se verely damaged, you will need to have the 
vehicle towed. If the tire only has a smal l puncture, from a nail for instance, you can 
use the temporary tire repair kit so that  you can drive to the nearest service station 
for a more permanent repair.
If a tire goes flat while driving, grasp  the steering wheel firmly, and brake gradually 
to reduce speed. Then stop in a safe place.
1. Park the vehicle on a firm, level, and non-slippery surface and apply the parking 
brake.
2. Change the gear position to 
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF 
(LOCK).
1 Temporarily Repairing a Flat Tire*
The kit should not be used in  the following situations. 
Instead, contact a dealer or roadside assistance to 
have the vehicle towed.
•The tire sealant has expired.
•More than one tire is punctured.•The puncture or cut is larger than 3/16 inch (4mm).
•The tire side wall is da maged or the puncture is 
outside the contact area.
•Damage has been caused by  driving with the tire 
extremely under inflated.
•The tire bead is no longer seated.
•The rim is damaged.
Do not remove a nail or  screw that punctured the 
tire. If you remove it from the tire, you may not be 
able to repair the puncture using the kit.
NOTICE
Do not use a puncture-repairing agent other than the 
one provided in the kit that came with your vehicle. If 
a different agent is used, you may permanently 
damage the tire pressure sensor.
When the puncture is:Kit Use
Smaller than 3/16 inch  (4 mm)Yes
Larger than 3/16 inch (4 mm)No
Contact 
Area
* Not available on all models
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