Since I have not received a response, I will leave you with a general answer, I hope this information helps you.
The Safelock feature is basically a mechanism which makes the car more difficult to break into once it's locked. When it is active, it disables the interior door opening levers.
The 'CHECK SAFELOCK' message is just a message reminder for you to lock the car properly when exiting.
To activate SAFELOCK on a car without keyless entry, press lock button ONCE on the key fob. Do not double press, this will deactivate SAFELOCK therefore, the interior door opening lever will still be operable. On a keyless car - touch the small indentation in the exterior door handle ONCE to activate SAFELOCK.
NOTE: If you activate SAFELOCK after exiting the vehicle, anyone still in the car, will not be able to exit the vehicle because the interior door opening levers will be disabled.
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