tailgate Acura MDX 2017 Owner's Guide
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Continued143
uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
Controls
■Locking the doors and tailgate
Press the lock button.
Once: u Some exterior lights flash, all the doors 
and tailgate lock, and the security system 
sets.
Twice (within five se conds after the first 
push):
u The beeper sounds and verifies the 
security system is set.
■Unlocking the doors and tailgate
Press the unlock button.
Once: u Some exterior lights flash twice, and the 
driver’s door unlocks.
Twice:
u The remaining doors and tailgate unlock.
*1: 
Checking Door Lock Status* P. 145
■Using the Remote Transmitter1 Using the Remote Transmitter
If you do not open a door or the tailgate within 30 
seconds of unlocking the vehicle with the remote 
transmitter, the doors and ta ilgate will automatically 
relock.
You can change the relock timer setting. 2 Customized Features  P. 123, 285
You can lock or unlock doors using the remote 
transmitter only when the power mode is in VEHICLE 
OFF.
The remote transmitter us es low-power signals, so 
the operating range may vary depending on the 
surroundings.
The remote will not lock th e vehicle when a door or 
the tailgate is open.
If the distance at which the remote transmitter works 
varies, the batter y is probably low.
If the LED does not come on when you press a 
button, the battery is dead.
2 Replacing the Button Battery  P. 501
You can customize the door unlock mode setting. 2 Customized Features  P. 123, 285
LED
Unlock 
Button Lock 
Button
LED
*1
Unlock 
Button Lock 
Button
* Not available on all models
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
144
Controls
If the keyless access remote battery or the ve hicle battery is dead, use the key instead 
of the keyless access remote.
2 Replacing the Button Battery  P. 501
Fully insert the key and turn it.
■Locking the front doors
Push the lock tab forward 
a or push the 
master door lock switch in the lock direction 
b, and close the door.
■Locking the rear doors
Push the lock tab forward and close the door.
■Lockout prevention system
The doors and tailgate cannot be locked  when the keyless access remote is inside 
the vehicle.
■Locking/Unlocking the Doors Using a Key1 Locking/Unlocking the Doors Using a Key
When you lock the driver’s door with a key, all the 
other doors and tail gate lock at the same time. When 
unlocking, the driver’s door unlocks first. Turn the 
key a second time within a few seconds to unlock the 
remaining doors a nd the tailgate.
You can customize the door unlock mode setting. 2 Customized Features  P. 123, 285
Lock
Unlock
■Locking a Door Without Using a Key1Locking a Door Without Using a Key
When you lock the driver’s door, all the other doors 
and tailgate lock at the same time.
Make sure you have the key in your hand when you 
lock the driver’s door, any  of the other doors or the 
tailgate, otherwise you may end up locking the key 
inside the vehicle. 
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
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 Am ber (LEFT) LED 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. 143
When checking the door lock  status, you can also 
start or stop the engine. 2 Remote Engine Start with Vehicle 
Feedback
* P. 369
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
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 uChildproof Door Locks
148
Controls
Press the master door lock 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 all doors and unlocks all doors or the driver’s door automatically 
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 sett ing using the audio/
information screen or MID. 2 Customized Features  P. 123, 285
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150
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.
■Opening the tailgate
• 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  wind may cause the tailgate to close.
■Closing the tailgate
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. 71
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 uUsing the Tailgate Outer Handle
Controls
Using the Tailgate Outer Handle
When all the doors are unlocked, the tailgate 
is unlocked. Press the tailgate outer handle for 
more than one second, and wait until you 
hear three beeps before you lift open the 
tailgate.
u Releasing the outer handle within one 
second with one beep enables the power 
tailgate operations.
2 Power Tailgate Outer Handle  P. 154
To manually close the tailgate, grab the inner 
handle, pull the tailgate down, and push it 
closed from outside.
1Using the Tailgate Outer Handle
•Do not leave the keyless access remote in the 
vehicle when you get out . Carry it with you.
•Even if you are not carrying the keyless access 
remote, you can lock/unlock the tailgate while 
someone else with the remote is within range.
•Do not leave the keyless access remote inside the 
cargo area and close the tailgate. The beeper 
sounds repeatedly. You ca n open the tailgate and 
retrieve the key.
If you are carrying the keyl ess access remote, you do 
not have to unlock the tailgate before opening it.
Tailgate Outer 
Handle
Inner Handle
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uuOpening and Closing the Tailgate uOpening/Closing the Power Tailgate
Controls
Opening/Closing the Power Tailgate
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 tailgate is fully closed.
• The transmission is in 
(P.
• Press and hold the tailgat e button on the remote transmitter for about one 
second when the power mode  is in VEHICLE OFF (LOCK).
u If you have changed the  Keyless Open Mode setting to When Unlocked , 
you need to unlock the tailgate before  you press the tailgate button to open it.
2Customized Features  P. 123, 285
■The power tailgate can be closed when:
• The tailgate is fully open.
• Press and hold the tailgat e button on the remote transmitter for about one 
second when the power mode  is in VEHICLE OFF (LOCK).
1Opening/Closing the Power 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.
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.
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Continued153
uuOpening and Closing the Tailgate uOpening/Closing the Power Tailgate
Controls
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. 123, 285
■Remote Transmitter1Opening/Closing the Power 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.
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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