Manual: 2011/2012 Boxster

Page: 139

Off-road navigation

Off-road navigation allows you to navigate in nondigitized areas (no digital map data available for this area on the hard drive).

Observe the applicable regulations in the country in which you are driving. Driving a vehicle off official roads is not permissible in all countries.

Off-road navigation is generally performed only with the aid of direction arrows and simple navigation announcements. Even when you are driving on a road available in the digital map data on the hard drive, route guidance is via direction arrows only.
Off-road navigation works best when the vehicle is located at a significant distance (> 330 feet) from the digitized road network.

Display during off-road navigation
The following information is displayed during an active off-road navigation session:
– A compass display with a vehicle symbol in the center of the compass rose.
– The direction to the next landmark (stopover) symbolized by an orange-colored direction arrow.
– The directional deviation from the ideal route, symbolized by an orange-colored segment.
– The distance as the crow flies to the next landmark (stopover).

Arrival time during off-road navigation
During off-road navigation, the arrival time displayed in the menu among others is calculated based on an assumed average speed of approx. 22 mph.

Determination of the vehicle position during off-road navigation
The vehicle position is determined with the aid of a GPS antenna and a receiver in the navigation module. GPS stands for Global Positioning System and is a satellite-assisted position tracking system.
Further vehicle signals (e.g. speed) are evaluated and processed in the navigation computer to calculate the vehicle position.
This enables the system to automatically correct signal changes due to wheel changes (altered tire diameter), temperature, or air pressure variations.

Activating/deactivating off-road navigation

  1. Press the button.
  2. Press the button or touch the tab of the same name in the header.
  3. Select "SET NAVI".
  4. Select "Off-Road" to activate ( ) or deactivate ( ) the function.

Off-road navigation is automatically activated after route guidance is started to a destination in a non-digitized area.