1998 Buick Century Owner's Manual - Page 81

Power Door Locks Press the power door lock switch to lock orunlock all doors. Lockout Protection Feature This featureprevents a driverwho has left thekey in the vehicle's ignition from locking the doors by using the power door locks while any door is open. The feature works by disabling thepower door lockswhen a key is in the ignition and any door is open. You may override the Lockout Protection Feature by holding the power door lock switch in the position lock for more than three seconds while the key is in the ignition and any door is open. Remember, this feature can't guarantee you'll never that be locked out of your vehicle. If you use the manual door lock orif you don't leavethe key in the ignition, you could still lock your keys inside your vehicle. Always remember to take your keys with you. The rear doors do not have power door lock switches. The leveron each rear door works only that door's lock. It won't lock or unlock all the doors. 2-5