Recalibration For New Vehicle Or Tires - Alpine NVD-A121 SMART MAP PRO Owner's Manual

Recalibration for new vehicle or tires

The navigation system measures distance using the vehicle's speed pulses. The vehicle's speed pulses vary
depending on the manufacturer and tire size. Therefore, whenever you install this system into a different
vehicle or replace your tires, the distance coefficient is automatically recalibrated. This done by comparing the
speed pulse data to the GPS calculated distance. To make the recalibration speed faster, clear the current
coefficient. You can check on the screen whether or not vehicle's speed pulses are being counted.
1
Press the MENU button to display the
main menu bar. Select Setup and press
ENTER. The Setup menu appears.
Select System Calibration and press
ENTER.
2
Highlight Change Vehicle or Tires and
press ENTER.
3
Confirmation screen asking you
whether you wish to execute the
clearance procedure or not. Select
"Yes" and press ENTER if you wish to
clear.
The system returns to the System
Calibration display.
4
Press the MP/RG button.
The system returns to the Detailed Map
display.
68
MENU
ENTER
/
ENTER
/
ENTER
/
ENTER
/
ENTER
/
MP
/RG