These locks are intended to help prevent children from accidentally opening the rear doors. Use them on both rear doors whenever a child rides in the rear seat of the vehicle.
If you slide the child safety lock to the lock position before closing that door, the door cannot be opened from the inside.
The door can only be opened by pulling the outside handle.

Locking, Unlocking with Door-
Lock Knob
Doors and LocksDRL (Daytime Running Light) Bulb Removal/Installation
MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo
1. Disconnect the negative battery cable..
2. Disconnect the connector.
3. Rotate the DRL bulb in the direction of the arrow shown in the figure to remove
it.
4. Remove the DRL bulb.
5. Install in the reverse order of removal.
SKYACTIV-G 2.0
...
Electric Power Steering Oil Pump Component Removal/Installation
CAUTION:
Be careful not to drop the electric power steering oil pump component as
the internal parts of the EHPAS CM could be damaged. Replace the electric power
steering oil pump component if it is subjected to an impact.
1. Remove the front mudguard (RH)..
2. Remove the aerod ...
Vanity Mirror Illumination Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped fastener remover into the service hole, and pry it in
the direction indicated by the arrow to remove the lens.
3. Remove the vanity mirror illumination bulb.
4. Install in the reverse order of removal. ...