Cruise control
See also:
High outside temperatures
If DEF heats up to over 122 °F (50 °C) for
extended periods, e.g. as a result of direct
sunlight on the DEF reservoir, DEF can
decompose. Ammonia vapors develop as a
result.
WARNING
When o ...
Safety systems
Display messages
(USA only)
(Canada only) The red brake system
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
Possible causes/consequences and ►
Soluti ...
Important safety notes
WARNING
If you tow the vehicle, you must use a rigid towing bar if:
the engine is not running.
there is a brake system malfunction.
there is a malfunction in the power supply or the vehi ...
