1998 Buick Regal Owner's Manual - Page 80

Rear-Door Child Security Locks Your vehicle is equipped with rear-door child security locks that help prevent passengers from opening the rear doors of your vehicle from theinside. To use oneof these locks: 1. Open one of the rear doors. 2. On the inside of the rear door will be a lock. Insert your key into this lock and rotate it upward. This will engage the safety lock. To disengage the feature, rotate the lock downward. 3. Close the door. 4. Do the same thing to the other rear door lock. The rear doors of your vehicle cannot be opened from the inside when this feature is in use. If you want to open the rear door when the security lock is on, unlock the door from the inside and then open the door from the outside. 2-6