Acura MDX 2018 Owner's Manual
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
150
Controls
You can remotely check if your vehicle’s doors 
are all locked or any  are unlocked using the 
keyless access remote from extended 
distances.
Press the lock button, the Amber (LEFT) LE D blinks once. Then after three seconds 
one of the following feedback will come:
• Green (center) comes on: Acknowle dges that the doors are locked.
• Red (right) comes on: Acknowledges that doors are not locked, or any door is not 
completely closed.
• Red (right) blinks three times: The remote  does not receive the door lock status 
from the vehicle.
■Checking Door Lock Status*1 Checking Door Lock Status*
Operate the remote in an open space. If there are 
buildings or other obstacl es between your vehicle 
and the remote, the remote may not work even 
within the operable range. However, the range 
required for unlocking the tailgate and all the doors 
as well as activating the pa nic function is the same as 
that required for operating the standard keyless 
access remote. 2 Using the Remote Transmitter  P. 147
When checking the door lock  status, you can also 
start or stop the engine. 2 Remote Engine Start with Vehicle 
Feedback
* P. 467
Red
Green
Amber
Lock 
Button
* Not available on all models
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Inside
Continued
Controls
Locking/Unlocking the Doors from the Inside
■Locking a door
Push the lock tab forward.
■Unlocking a door
Pull the lock tab rearward.
■Using the Lock Tab1 Using the Lock Tab
When you lock the door using the lock tab on the 
driver’s door, all of the ot her doors and the tailgate 
lock at the same time.
When you unlock the door using the lock tab on the 
driver’s door, only the driv er’s door will unlock.
To Unlock
Lock TabTo Lock
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Inside
152
Controls
Pull the front door inner handle.
u The door unlocks and opens in one 
motion.
Unlocking and opening the driver’s door from the inner handle unlocks all the other 
doors.
To avoid all the doors to be unlocked, use the lock tab on the driver’s door to unlock, 
then lock again before opening the door. u This setting works for one time only. If  you do not want all the doors to be 
unlocked all the time, customize the Auto Door Unlock setting to  Off using 
the MID or information screen.
■Unlocking Using the Front Door Inner Handle1 Unlocking Using the Front Door Inner Handle
The front door inne r handles are designed to allow 
front seat occupants to open the door in one motion. 
However, this feature requires that front seat 
occupants never pull a front door inner handle while 
the vehicle is in motion.
Children should always ride  in a rear seat where 
childproof door locks are provided.
2 Childproof Door Locks  P. 153
Inner Handle
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153
uuLocking and Unlocking the Doors uChildproof Door Locks
Controls
Press the master door lo ck switch in as shown 
to lock or unlock all the doors and the tailgate.
Childproof Door Locks
The childproof door locks prevent the rear  doors from being opened from the inside 
regardless of the position of the lock tab.
Slide the lever in the rear door to the lock 
position, and close the door.
■When opening the door
Open the door using the outside door handle.
■Using the Master Door Lock Switch1 Using the Master Door Lock Switch
When you lock/unlock eith er front door using the 
master door lock switch,  all the other doors and the 
tailgate lock/unlock  at the same time.
To Unlock
Master Door Lock Switch
To Lock
■Setting the Childproof Door Locks
1Childproof Door Locks
To open the door from the inside when the 
childproof door lock is on, put the lock tab in the 
unlock position, lower the  rear window, put your 
hand out of the window, and pull the outside door 
handle.
Lock Unlock
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uuLocking and Unlocking the Doors uAuto Door Locking/Unlocking
Controls
Auto Door Locking/Unlocking
Your vehicle locks or unlocks all doors auto matically when a certain condition is met.
■Drive lock mode
All doors and tailgate lock when the ve hicle’s speed reaches about 10 mph (15 
km/h).
■Driver’s door open mode
All doors unlock when the driver’s door is opened.
■Auto Door Locking
■Auto Door Unlocking
1 Auto Door Locking/Unlocking
You can turn off or cha nge to another auto door 
locking/unlocking settin g using the information 
screen or MID. 2 Customized Features  P. 126, 358
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155Continued
Controls
Opening and Closing the Tailgate
Precautions for Opening/Closing the Tailgate
Always make sure individuals and objects are clear of the tailgate before opening or 
closing it.
• Open the tailgate all the way.
u If it is not fully opened, the tailgate may begin to close under its own weight.
• Be careful when it is windy. The wi nd may cause the tailgate to close.
Keep the tailgate closed while driving to: u Avoid possible damage.
u Prevent exhaust gas from leaking into the vehicle.
2 Carbon Monoxide Gas  P. 74
1Precautions for Opening/Closing the Tailgate
Be careful not to  hit your head on the tailgate or to 
put your hands between th e tailgate and the cargo 
area when closing the tailgate.
When you are storing or pi cking up luggage from the 
cargo area while the engine  is idling, do not stand in 
front of the exhaust pipe. You may get burned.
Do not allow any passenger in  the cargo space. They 
may get hurt during hard braking, a sudden 
acceleration, or a crash.
3WARNING
Anyone caught in the path of a tailgate 
that is being opened or closed can be 
seriously injured.
Make sure that all people are clear of the 
tailgate before opening or closing it.
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uuOpening and Closing the Tailgate uPrecautions for Openi ng/Closing the Tailgate
156
Controls
The power tailgate can be operated by  pressing the power tailgate button on the 
remote transmitter or driver's door, or pr essing the outer handle or button on the 
tailgate.
The power tailgate can be opened when the transmission is in 
(P.
1 Precautions for Opening/Closing the Tailgate
NOTICE
Do not push or pull on the power tailgate when it is 
being automatically opened or closed.
Forcibly opening or closing  the power tailgate while 
in operation can deform the tailgate frame.
When operating the power tailgate, make sure there 
is enough space around your ve hicle. People near the 
tailgate may be se riously hurt if the tailgate hits or 
closes on their heads. Be  especially cautious if 
children are around.
The power tailgate may not  open or close under the 
following conditions:
•You start the engine while the tailgate is 
automatically openi ng or closing.
•The vehicle is parked on a steep hill.•The vehicle is swayed in a strong wind.
•The tailgate or the roof is  covered with snow or ice.
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uuOpening and Closing the Tailgate uOpening/Closing the Power Tailgate
Continued
Controls
Opening/Closing the Power Tailgate
Press the power tailgate button for more than 
one second to operate when the power mode 
is in VEHICLE OFF (LOCK).
To reverse direction while  the power tailgate is 
in operation, press th e button again. The 
beeper sounds three times and the tailgate 
reverses direction.
■Customizing when to open the tailgate
Anytime:  The power tailgate unlocks and open s at the same time. This is the 
default setting.
When Unlocked:  The tailgate opens when  all doors are unlocked.
2Customized Features  P. 126, 358
■Using the Remote Transmitter1Opening/Closing the Power Tailgate
If you close the power tail gate when all the doors are 
locked, the power tailgate locks automatically.
If you replace the battery or  the power tailgate fuse 
while the tailgate is open,  the power tailgate may be 
disabled. The power tail gate resumes once you 
manually close the tailgate.
Installing aftermarket com ponents other than Acura 
genuine accessories on the power tailgate may 
prevent it from fully opening or closing.
Make sure the power tailgate is fully open before you 
get your luggage in and out.
Make sure the power tailgat e is fully closed before 
you start the vehicle.
The beeper sounds when you start driving while the 
power tailgate  is still open, or closing.
Power 
Tailgate 
Button
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uuOpening and Closing the Tailgate uOpening/Closing the Power Tailgate
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Controls
To open or close the power tailgate, press the 
power tailgate button for about one second.
u Some exterior lights flash and the beeper 
sounds.
To reverse direction whil e the power tailgate is 
in operation, press the button again. The 
beeper sounds three times and the tailgate 
reverses direction.
■Using the Power Tailgate Button1 Opening/Closing the Power Tailgate
If the power tailgate meet s resistance while opening 
or closing, the auto reverse feature reverses the 
direction. The beeper sounds three times.
The auto reverse function  stops sensing when the 
tailgate is almost closed to  make sure that it fully 
closes.
Do not touch the sensors located on both sides of the 
tailgate. The power tailga te does not close if you 
touch either sensor when you are trying to close the 
tailgate.
Be careful not to scratch the sensors with a sharp 
object. If scratched, they can be damaged, and the 
power tailgate  closing feature malfunctions.
Power Tailgate Button
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Continued159
uuOpening and Closing the Tailgate uOpening/Closing the Power Tailgate
Controls
If you press the outer handle of the tailgate for 
no longer than one second, the tailgate opens 
automatically.
u The beeper sounds.
u If you want to open the tailgate 
manually, press the outer handle for 
more than one second.
2 Opening/Closing the Tailgate  P. 162
If you are carrying the keyless access remote, 
you do not have to unlock the tailgate before 
opening it.
■Using the Tailgate Outer Handle1Using the Tailgate Outer Handle
Do not leave the keyless access remote in the cargo 
area before closing the tailgate.
Even if you are not carrying the keyless access 
remote, you can lock/unl ock the tailgate while 
someone else with the remote is within range.
You can change the setting to open the power 
tailgate by the ta ilgate outer handle.
2 Customized Features  P. 126, 358
Outer Handle
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