key Acura MDX 2019 User Guide
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132
uuGauges and Multi-Information Display (MID) uMID
Instrument Panel
*1: Default SettingSetup Group Customizable Features
Description Selectable Settings
Lighting 
Setup
Interior Light Dimming 
TimeChanges the length of time the interior lights stay 
on after you close the doors.60sec /30sec*1/ 15sec
Headlight Auto Off 
TimerChanges the length of time  the exterior lights stay 
on after you close the driver’s door.60sec /30sec /15sec*1/0sec
Auto Light  Sensitivity*Changes the timing for the headlights to come on.Max/High /Mid*1/Low /Min
Door Setup Auto Door Lock
Changes the setting for when the doors 
automatically lock. With Vehicle Speed
*1/
Shift 
From P /Off
Auto Door Unlock Changes the setting for when the doors 
automatically unlock. All Doors When Driver’s 
Door Opens
*1/
All Doors 
When Shifted To Park /All 
Doors When Ignition 
Switched Off/Off
Key And Remote Unlock 
Mode Sets up either the driver’s door or all doors to unlock 
on the first operation of the remote or built-in key.
Driver Door
*1/
All Doors
Keyless Lock Answer 
Back LOCK/UNLOCK- The exterior lights flash.
LOCK (2nd push)- The beeper sounds.
On
*1/
Off
Security Relock Timer Changes the time it takes for the doors to relock and 
the security system to set after you unlock the 
vehicle without opening any door.
90sec
/60sec /30sec
*1
Auto Folding Door 
Mirror*Changes how you can fold the door mirrors. Auto Fold Wi
th Keyless*1/
Manual Only
* Not available on all models
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uuGauges and Multi-Info rmation Display (MID)uMID
Continued
Instrument Panel
*1: Default SettingSetup Group Customizable Features
Description Selectable Settings
Power 
Tailgate SetupKeyless Open ModeChanges the keyless setting for when the power 
tailgate opens.Anytime*1/When Unlocked
Power Open By Outer 
HandleChanges the setting to open power tailgate by 
tailgate outer handle.Off (Manual Only) /On 
(Power/Manual)*1
Dynamic 
Mode SetupPreferred Dynamic 
ModeChanges the Dynamic Mode setting for when you 
set the power mode to ON.Last Used*1/ Comfort /
Normal /Sport
Maintenance 
Info.Maintenance ResetResets/Cancels the engine oil life display when you 
have performed the maintenance service. Cancel/ Reset
Default All —Cancels/Resets all the 
customized settings as 
default. Cancel/
Set
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137
Controls
This chapter explains how to operate the various controls necessary for driving.
Clock.................................................. 138
Locking and Unlocking the Doors Key Types and Functions .................. 139
Low Keyless Access Remote Signal Strength ......................................... 141
Locking/Unlocking the Doors from the 
Outside .......................................... 142
Locking/Unlocking the Doors from the  Inside ............................................. 151
Childproof Door Locks ..................... 153
Auto Door Locking/Unlocking .......... 154
Opening and Closing the Tailgate ... 155
Security System Immobilizer System .......................... 163
Security System Alarm ...................... 163 Opening and Closing the Windows
... 166
Moonroof .......................................... 168
Operating the Switches Around the 
Steering Wheel ENGINE START/STOP Button............. 169
Turn Signals ..................................... 172
Light Switches.................................. 173
Fog Lights
*...................................... 176
Daytime Running Lights ................... 176
Auto High-Beam .............................. 177
Wipers and Washers ........................ 180
Brightness Control ........................... 184
Rear Defogger/Heated Door Mirror Button.. 185Driving Position Memory System ...... 186
Adjusting the Steering Wheel........... 188 Adjusting the Mirrors
Interior Rearview Mirror ................... 189
Power Door Mirrors ......................... 190
Adjusting the Seats Front Seats ...................................... 192
Second Row Seats ........................... 195
Third Row Seats ............................... 204
Armrest ........................................... 205
Interior Lights/Interior Convenience Items
Interior Lights .................................. 207
Interior Convenience Items .............. 209
Climate Control System
Using Automatic Climate Control .... 220
Rear Climate Control System ........... 227
Automatic Climate Control Sensors ... 231
* Not available on all models
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139Continued
Controls
Locking and Unlocking the Doors
Key Types and Functions
This vehicle comes with the following keys:
Use the keys to start and stop the engine, and 
to lock and unlock all the doors and tailgate. 
You can also use the keyless access system to 
lock and unlock all the doors and tailgate.1Key Types and Functions
All the keys have an immobilizer system. The 
immobilizer system helps to  protect against vehicle 
theft. 2 Immobilizer System  P. 163
Follow the advice below to  prevent damage to the 
keys:
•Do not leave the keys in  direct sunlight, or in 
locations with high temperature or high humidity.
•Do not drop the keys or set heavy objects on them.•Keep the keys away from liquids, dust and sand.
•Do not take the keys apart except for replacing the 
battery.
If the circuits in the keys  are damaged, the engine 
may not start, and the keyless access system may not 
work.
If the keys do not work properly, have them 
inspected by a dealer.
You can remotely start the  engine using the two-way 
keyless access remote. 2 Remote Engine Start with Vehicle 
Feedback
* P. 469
Models with two-way keyless access remote
Models with two-way keyless 
access remote
Models without two-way keyless 
access remote
* Not available on all models
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uuLocking and Unlocking the Doors uKey Types and Functions
Controls
The built-in key can be us ed to lock/unlock the 
doors when the keyless  access remote battery 
becomes weak and th e power door lock/
unlock operation is disabled.
To remove the built-in key, slide the release 
knob and then pull out the key. To reinstall 
the built-in key, push th e built-in key into the 
keyless access remote until it clicks.
■Built-in Key
Built-in Key Release Knob
Models with two-way keyless 
access remote
Release Knob
Built-in Key
Models without two-way keyless 
access remote
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141
uuLocking and Unlocking the Doors uLow Keyless Access Remote Signal Strength
Controls
Contains a number that  you will need if you 
purchase a replacement key.
Low Keyless Access Re mote Signal Strength
The vehicle transmits radio waves to locate  the keyless access remote when locking/
unlocking the doors and tailgate, or to start the engine.
In the following cases, locking/unlocking the doors and tailgate, or starting the 
engine may be inhibited or operation may be unstable:
• Strong radio waves are being transmitted by nearby equipment.
• You are carrying the keyless access re mote together with telecommunications 
equipment, laptop computers, ce ll phones, or wireless devices.
• A metallic object is touching or  covering the keyless access remote.
■Key Number Tag1Key Number Tag
Keep the key number tag separate from the key in a 
safe place outside  of your vehicle.
If you wish to purchase an additional key, contact a 
dealer.
If you lose your key and  you cannot start the engine, 
contact a dealer.
1 Low Keyless Access Remote Signal Strength
Communication between the keyless access remote 
and the vehicle consumes the keyless access remote’s 
battery.
Battery life is  about two years,  but this varies 
depending on regularity of use.
The battery is consumed whenever the keyless access 
remote is receivi ng strong radio wave s. Avoid placing 
it near electrical  appliances such as  televisions and 
personal computers.
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
Controls
Locking/Unlocking the  Doors from the Outside
When you carry the keyless access remote, 
you can lock/unlock the doors and the 
tailgate.
You can lock/unlock the doors and tailgate 
within a radius of about 32 inches (80 cm) of 
the outside door handle or tailgate outer 
handle.
■Using the Keyless Access System1Locking/Unlocking the Doors from the Outside
If the interior light switch is in the door activated 
position, the interior light comes on when you unlock 
the doors and tailgate.
No doors opened: The li ght fades out after 30 
seconds.
Doors and tailgate relo cked: The light goes off 
immediately. 2 Interior Lights  P. 207
1Using the Keyless Access System
If you do not open a door or the tailgate within 30 
seconds of unlocking the  vehicle with the keyless 
access system, the doors and tailgate will 
automatically relock.
You can lock or unlock doors using the keyless access 
system only when the power mode is in VEHICLE OFF.
Models without rear door touch sensor
Models with rear door touch sensor
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uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
Controls
■Locking the doors and tailgate
Press the door lock button on the front or 
rear
* doors, or on the tailgate.
u Some exterior lights flash; the beeper 
sounds; all the doors and tailgate lock; 
and the security system sets.
1Using the Keyless Access System
•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/unl ock the doors and tailgate 
while someone else with th e remote is within range.
•The door may be unlocked  if the door handle is 
covered with water in heavy rain or in a car wash if 
the keyless access remote is within range.
•If you grip a door handle  wearing gloves, the door 
sensor may be slow to  respond or may not respond 
by unlocking the doors.
•After locking the door, you  have up to two seconds 
during which you can pull the door handle to 
confirm whether the door is locked. If you need to 
unlock the door immediately  after locking it, wait 
at least two seconds befo re gripping the handle, 
otherwise the door will not unlock.
•The door might not open if  you pull it immediately 
after gripping the door handle. Grip the handle 
again and confirm that th e door is unlocked before 
pulling the handle.
•Even within the 32 inches (80 cm) radius, you may 
not be able to lock/unl ock the doors with the 
keyless access remote if it is above or below the 
outside handle.
•The keyless access remote may not operate if it is 
too close to the door and door glass.
The light flash, beep and  door unlock mode settings 
can be customized using th e information screen or 
multi-information display (MID). 2 Customized Features  P. 126, 360
Door Lock 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
■Locking the doors and tailgate (Walk 
away auto lock ®)
When you walk away from the vehicle while 
carrying the keyless acce ss remote, the doors 
will automatically lock.
The auto lock function  activates when all 
doors and tailgate are closed, and the keyless 
access remote is within about 5 feet (1.5 m) 
radius of the outside door handle.
Exit vehicle while carrying keyless access 
remote and close door(s).
1. While within about 5 feet (1.5 m) radius of 
the vehicle.
u The beeper sounds; the auto lock 
function will be activated.
2. Carry the keyless access remote beyond 
about 5 feet (1.5 m) from the vehicle and 
remain outside this range for 2 or more 
seconds.
u Some exterior lights flash; the beeper 
sounds; all doors and tailgate will then 
lock.1Locking the doors and tailg ate (Walk away auto lock®)
The auto lock function is set to OFF as the factory 
default setting. The auto lo ck function can be set to 
ON using the information screen or MID.
If you set the auto lock  function to ON using the 
information screen or the MID, only the remote 
transmitter that was used to  unlock the driver’s door 
prior to the setting change can activate auto lock. 2 Customized Features  P. 126, 360
After the auto lock function has been activated, 
when you stay within the locking/unlocking 
operation range, the indica tor on the keyless access 
remote will continue to  flash until the doors are 
locked.
When you stay beside the vehicle within the 
operation range, the doors wi ll automatically lock 
approximately 30 seconds after the auto lock 
function activating beeper sounds.
When you open a door after  the auto lock function 
activating beeper sounds, the auto lock function will 
be delayed until all doors  and tailgate are closed.
Under the following circumstances, the auto lock 
function will not activate:
•The remote is inside the vehicle.
•The remote is taken out  of its operational range 
before all the doors an d tailgate are closed.
u
The beeper will not sound.
u The beeper will sound.
The activation range of 
the auto lock function is 
about 5 feet (1.5 m)
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Continued145
uuLocking and Unlocking the Doors uLocking/Unlocking the Doors from the Outside
Controls
To temporarily deactivate the function:
1. Set the power mode to OFF.
2. Open the driv er’s door.
3. Using the master door lock switch, operate 
the lock as follows:
Lock  Unlock  Lock  Unlock.
u The beeper sounds and the function is 
deactivated.
To restore the function:
• Set the power mode to ON.
• Lock the vehicle without using the auto lock 
function.
• With the keyless acce ss remote on you, 
move out of the au to lock function 
operation range.
• Open any door.1Locking the doors and tailg ate (Walk away auto lock®)
You must wait until the pow er tailgate fully closes 
before the auto lock function will be activated.
The auto lock function does  not operate when any of 
the following conditions are met.
•The keyless access remote is inside the vehicle.
•A door or the hood is not closed.•The power mode is set to any mode other than 
OFF.
•The keyless access remote is not located within a 
radius of about 5 feet (1 .5 m) from the vehicle 
when you get out of the vehicle and close the 
doors.
Auto lock function operation stop beeper
After the auto lock function has been activated, the 
auto lock operation stop beeper sounds for 
approximately two seconds  in the following cases.
•The keyless access remote is put inside the vehicle 
through a window.
•You are located too close to the vehicle.
•The keyless access remote is put inside the tailgate.
If the warning beeper sounds, check that you are 
carrying the keyless access  remote. Then, open/close 
a door and confirm the auto lock activation beeper 
sounds once.
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