User's Manual

1.4.3 Symbols and fields
1.4.3.1 Vehicle view symbol
The display must provide a schematic birds-eye view of the vehicle with oversized icons depicting the
tire positions of up to seven tires (front single tires, rear double tires, spare tire). The vehicle view icon
must be designed in a way, so that it is clearly visible, which side is the front and which one is the rear.
The vehicle must be visible at all times during the operation.
Vehicle view symbol (without rear double tires, but with spare tire):
The icons for rear double tires and spare tires will be included in the display whenever the system is
configured for the presence of said tires. The icons for the rear double tires and the spare tire will
behave in the same way as all other tire symbols and as outlined in paragraph 2.3. In case the system is
configured for any such tire not being present, the respective icons will not be shown in the display.
1.4.3.2 Numeric display
To display tire pressure and temperature, the display unit must contain a three digit numeric display
(min. 23 fields including two dots / commas).
1.4.3.3 Unit of measurement fields
To inform the driver of the unit of measurement and thus the information currently displayed in the
numeric field, the display must indicate the current units of measurement: “bar”, “psi”, “kpa”, “°C” and
“°F”. This indication must be located next to the numeric display to allow for easy association.
1.4.3.4 Tire alert status field
To give additional information of the alert status, the display must contain either icons or text fields for
the three different alert types: “Pressure Loss”, “Fast Leaking” and “Temperature Alert”.
These status field have to be positioned next to the vehicle view symbol.