See also:

How the air bag deactivation systemworks
The BabySmart™ system is standard equipment in Canada. WARNING   Accident statistics show that children secured in the rear seats are safer than children secured in the front-passenger ...

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. ...

The windshield wipers are obstructed
Leaves or snow, for example, may be obstructing the windshield wiper movement. The wiper motor has been deactivated. - For safety reasons, you should remove the SmartKey from the ignition lock. ...