Keys, doors and windows 25General hints for operatingtailgate9 WarningDo not drive with the tailgate openor ajar, e.g. when transportingbulky objects, since toxic exhaustgases, which can not be seen orsmelled, could enter the vehicle.This can cause unconsciousnessand even death.CautionBefore opening the tailgate checkoverhead obstructions, such asa garage door, to avoid damage tothe tailgate. Always check themoving area above and behind thetailgate.NoteThe installation of certain heavyaccessories onto the tailgate mayaffect its ability to remain open.Vehicle securityAnti-theft locking system9 WarningDo not use the system if there arepeople in the vehicle! The doorscannot be unlocked from theinside.The system deadlocks all the doors.All doors must be closed otherwisethe system cannot be activated.If the ignition was on, the driver's doormust be opened and closed once sothat the vehicle can be secured.Unlocking the vehicle disables themechanical anti-theft locking system.This is not possible with the centrallocking button.ActivatingPress e on the radio remote controltwice within 15 seconds.Anti-theft alarm systemThe anti-theft alarm system iscombined with the central lockingsystem.It monitors:■ Doors, tailgate, bonnet■ Passenger compartment includingadjoining load compartment■ Vehicle inclination, e.g. if it is raised■ Ignition