See also:

Checking tire pressure electronically
  Make sure that the SmartKey is in position 2 in the ignition lock.   Press the or button on the steering wheel to select the Service menu.   Press the or button to sel ...

Washing by hand
Carefully remove all deposits of road salt as soon as possible when driving in winter. Also, clean the insides of the wheels when washing the underbody of the vehicle. ► Do not use hot wat ...

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 ...