LG MH6548SR Owner's Manual page 7

Your oven has a safety feature that
prevents accidental running of the oven.
Once the child lock is set, you will be
unable to use any functions and no
cooking can take place.
However your child can still open the
oven door!
Press STOP STOP/ / C C L L EA EAR R .
Press and hold STOP STOP/ / C C L L EAR EAR until "L" appears in the display and BEEP
sounds.
The CHILD LOCK is now set.
The time will disappear on the display if you have set the clock.
"L" remains displayed to let you know that CHILD LOCK is set.
To cancel CHILD LOCK press and hold S S T T OP
You will hear BEEP when it's released.
OP/ / C C L L EAR EAR until "L" disappears.
7
Child
Lock