See also:

Coolant temperature
A warning lamp will come on if the coolant, and therefore the engine, becomes too hot. In addition, a message will appear on the Control Display. Check the coolant level ...

External devices
At a glance ...

Interior rearview mirror, automatic dimming feature
Photocells are used for control: In the mirror glass. On the back of the mirror. For proper operation: Keep the photocells clean. Do not cover the area between the inside rearview ...