Rear Door Security Locks - GMC 2010 Sierra Owner's Manual

Rear Door Security Locks

Your vehicle has rear door security locks. These
prevent passengers from opening the rear doors from
the inside.
The rear doors must be open to access them. The label
showing lock and unlock positions is located near
the lock.
3-12
The rear door security
locks are located on the
inside edge of each
rear door.
To set the locks, do the following:
1. Insert the key into the security lock slot and turn it
so the slot is in the horizontal position.
2. Close the door.
When you want to open a rear door when the security
lock is on, do the following:
1. Unlock the door by lifting the rear door manual
lock, using the power door lock switch, or the
Remote Keyless Entry (RKE) transmitter, if the
vehicle has one.
2. Open the door from the outside.
To cancel the rear door security lock, do the following:
1. Unlock the door and open it from the outside.
2. Insert the key into the security lock slot and turn it
so the slot is in the vertical position.