Driving systems
| Problem | Possible causes/consequences and
 Solutions |
 The red distance warning lamp lights up while the vehicle is in motion. A warning tone also sounds. |
 Risk of accident
The warning is issued if you approach a stationary vehicle or a
vehicle driving ahead of you at too high a speed. |
See also:
Problems with the SmartKey
Problem
Possible causes/consequences and
Solutions
You cannot lock or unlock the vehicle using
the SmartKey.
The SmartKey battery is discharged or nearly discharged.
...
Selecting an alternative route
With the "Alternative route" function, routes
other than the original one can be calculated.
To activate navigation mode: press the
function button once or twice.
To show the menu ...
Additives
Only use DEF in accordance with ISO
22241. Do not use additives with DEF and
do not dilute DEF with water. This may
destroy the BlueTEC exhaust gas
aftertreatment system. ...