User's Manual

1.3.5.2 Pressure alert stage two
If one or more tires’ pressure drops 50% or more below the preset reference pressure, a pressure alert
must be triggered. A 3 Step Indication procedure will be used to highlight this conditions:
Step 1. The “Pressure Warning” icon will be shown and the icon of the corresponding tire will blink
for 90 seconds and beep at the same frequency (1 Hz) for 15 seconds. The driver must be able turn off
the beeping whenever he pushes the button.
Step 2. The “Pressure Warning” icon will be shown and the icon of the corresponding tire will blink
only with doubled frequency (2 Hz) for 90 seconds and beep at the same frequency for 15 seconds.
Again the driver must be able turn off the beeping whenever he pushes the button.
Step 3. The “Pressure Warning” icon will be shown and the icon of the corresponding tire will blink
at a doubled frequency again (4 Hz) and beep at the same frequency for 15 seconds. And again the
driver must be able turn off the beeping whenever he pushes the button.
Step 3 will be repeated continuously until the condition is improved (a normal or warning condition has
been met).
During this whole period, the 3-digit 7-segment section will show the current pressure of this tire.
Additionally the backlight of the display will change to red.
Pressure alert stage two displayed:
(European version: red; US version: yellow)
If more than one tire is affected, the system will cycle through the tires affected, showing each
under-inflated tire’s pressure for 2 seconds continuously.
Whenever this condition applies to the spare tire, the “Under Pressure Alarm” icon will be shown and
the corresponding icon will blink and beep in the same frequency (1 Hz) for 15 seconds showing the
corresponding pressure (only once when ignition is turned on). When all other tires are ok and
therefore the corresponding icons are shown continuously, the icon for the spare tire will keep on
blinking and the “Under Pressure Alarm” icon will be shown. In spite of the incorrect pressure of the