length Acura MDX 2011 Navigation Manual
Page 91 of 184
Navigation System91
Information Features
To perform a conversion:
1. Enter a numeric value to be converted 
(for example, 1000).
2. Move the  Interface Dial  down to 
select  UNIT CONVERSION . The 
screen changes to:
3. Rotate the  Interface Dial knob  to 
select the type of unit you want to 
convert (for example, Length) and 
push in on the  Interface Dial to 
select. The screen for that conversion 
type appears (see illustration in   4. Select the base unit (e.g., mm) that 
you wish to convert to some other 
unit. All other units will change 
automatically depending on the base 
unit value. In the example below, 
1000 mm converts to 100 cm,  
NOTE:
 If you do not enter a value to be  converted, only “Temperature” units 
are selectable.
 Conversions using negative values  may produce meaningless or 
physically impossible values.
 To return the  Calculator screen, 
select  CALC.  by moving the 
Interface Dial  to the right.System/Device Information
Say or select System/Device 
Information while on the INFO  screen 
(Other ), and the display will change as 
indicated below.
You will need this information when 
ordering an update DVD. See page 133 
for more information.
step 4). 1 m, etc.
2011  MDX  
Page 111 of 184
Navigation System111
System Setup
Say or select Edit Area to create the 
area to be avoided.  The following screen 
appears:
Either select Address  or Map Input 
on the  Enter avoid area by screen.
Each choice provides  a slightly different 
way to locate the approximate map 
display for drawing th e area you wish to 
avoid. After selecting the choice, a 
map screen 
will be displayed.
Rotate the  Interface Dial knob to 
select the map scale. Use the  Interface 
Dial  to move the crosshairs (red circle) 
to the desired start point and push in on 
the  Interface Dial  to “set” the start 
point. Then move the  Interface Dial in 
a straight or diagonal direction to 
encompass the area to be avoided. NOTE:
The maximum size of the “Avoid area” 
is 1/2 mile in length or width.
The selected area will be displayed as a 
shaded box with a yellow border. Push 
in on the 
Interface Dial  to set the end 
point of the avoided area. To “redraw” 
the area, select  CANCEL and repeat the 
area selection process.
2011  MDX  
Page 127 of 184
Navigation System127
System Initialization
System Initialization
If for any reason you lose power to the 
navigation system (e.g., the battery was 
disconnected), the navigation system 
will require initialization. Once 
completed, your system will be ready to 
use.
This initialization requires the 
following:
• Entry of the 5-digit anti-theft security  code to “unlock” the audio and 
navigation system.
• GPS initialization (may not be needed  depending on the length of time the 
system was without power). (See 
GPS Initialization  on this page.
• Map matching to align the GPS  coordinates to a place on the map 
(displays current street at the bottom 
of the map). (See  Map Matching on 
page 128.)
Entering the Security Code
If the battery goes dead or is 
disconnected for any reason, you will 
have to enter a security code for the 
audio and navigation system before you 
can use it again.
When you purchased the vehicle, you 
should have received one card 
containing the navigation system’s 
security code and serial number. Keep 
this card in a safe place in case you need 
the code. If you lose the card, you must 
obtain the security code from your 
dealer.
Enter the 5-digit security code in 
accordance with the owner’s manual for 
your vehicle. If you do not enter the 
security code, the navigation and audio 
voice will not function.
NOTE:
The anti-theft security code is unrelated 
to your optional navigation system PIN 
(for Address Book or Home Address).
GPS Initialization
Depending on the le ngth of time the 
battery was disconnected, your system 
may require GPS initialization. If it 
does, the following screen appears:
If this procedure is not necessary, the 
system proceeds directly to the 
Disclaimer  screen (see page 18).
During initialization, the system 
searches for all available GPS satellites 
and obtains their orbital information. 
During this procedure, the vehicle 
should be out in the open with a clear 
view of the sky.
2011  MDX