Switching on and off
The Driver Alert System can be activated or deactivated using the
button or function
button and the
Vehicle
,
and
Driver assistance
function buttons in the
Infotainment system
⇒
Vehicle settings menu
.
Function limitations
The Driver Alert System has system-related limitations. The following conditions can limit the
function of the Driver Alert System, or prevent it from working altogether:
• Speeds less than 60 km/h (37 mph).
• Speeds of more than 200 km/h (125 mph).
• Roads with bends.
• Poor roads.
• Adverse weather conditions.
• Sporty driving style.
• Towing a heavy/long trailer.
• The driver is distracted.
The Driver Alert System is reset in the following situations:
• The ignition is switched off.
• The driver seat belt is unfastened and the driver door is open.
• The vehicle has been stationary for longer than 15 minutes.
The Driver Alert System is automatically reset in case of long slow drives (speed less than 60 km/h
(37 mph)). If the speed is increased, the system evaluates the driving behaviour again.
The Driver Alert System has been developed for use only while driving on highways and
good roads.
If there is a system fault, proceed to a qualified workshop immediately to have the system
checked.
Dynamic Road Sign Display (Sign Assist)
Fig. 19
On the instrument cluster display: examples of recognised speed limits or overtaking
restrictions with accompanying additional signs.
First read and observe the introductoryinformation and safety warnings
⇒
Introduction
Dynamic Road Sign Display uses a camera in the base of the interior mirror to monitor standard
road signs in front of the vehicle and notifies the driver of any detected speed limits or overtaking
restrictions. Within the limits of the system, the system also displays additional signs, e.g.
temporary restrictions, signs related to towing a trailer
⇒
Trailer towing
or restrictions in wet
weather conditions. In some cases the system can also display the current speed limits on non-
signposted routes.
The intelligent technology used in the Driver Alert System cannot overcome the laws of
physics, and functions only within the limits of the system. Do not let the extra
convenience afforded by the Driver Alert System tempt you into taking any risks when
driving – this can cause accidents. During a long trip, plan regular and sufficient breaks.
• The driver is responsible at all times for their fitness to drive.
• Never drive a vehicle when you are tired.
• The system cannot always detect the driver's level of alertness. Observe the
information in the section Function limitations
⇒
Function limitations
.
• In certain situations, the system may wrongly interpret intentional driving manoeuvres
as a lack of alertness from the driver.
• No urgent warning will be given in the event of the phenomenon known as microsleep.
• Follow the information on the instrument cluster display and respond according to the
commands.
WARNING
