Mercedes-Benz GL-Class: Important safety notes - SmartKey - Opening/closing - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Important safety notes

WARNING When leaving the vehicle, always remove the 
When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the vehicle, even if they are secured in a child restraint system, and do not give them access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. They could:
injure themselves on vehicle parts
be seriously or fatally injured by extreme heat or cold
injure themselves or have an accident with vehicle equipment that may still be in operation even after the SmartKey has been removed from the ignition, such as the seat adjustment, steering wheel adjustment or memory function.
If children open a door, they could cause severe or even fatal injury to other persons; if they get out of the vehicle, they could injure themselves when doing so or be seriously or even fatally injured by any passing traffic.
Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and a child could be burned on these parts.

WARNING If a key ring is too heavy or too large, the 
If a key ring is too heavy or too large, the weight acting on the key could cause it to turn in the ignition lock or catch on the steering wheel. This could cause the engine to be switched off suddenly. You could lose control of the vehicle and cause an accident. Do not attach any heavy or large key rings to the key that is inserted in the ignition.

    SmartKey
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    General information
    If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. ► Check the battery ...

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    Grass/gravel/snow
    This program should be used where a firm surface is covered with loose or slippery material. Note: For deep gravel it is recommended that the Sand program is selected. Note: If the vehicle is un ...

    Slippery road surfaces
    WARNING   The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for that purpose. Indicated temperatures just above the freezin ...

    Parking the vehicle for a long period
    If you leave the vehicle parked for longer than four weeks, the battery may be damaged by exhaustive discharge. ► Connect a trickle charger. You can obtain information about trickle ch ...