1999 Buick Riviera Owner's Manual - Page 66

yellowblue Door Locks CAUTION: Unlocked doors can be dangerous. Passengers -- especially children -- can easily open the doors and fall out. When a door is locked, the inside handle won't open it. Outsiders can easily enter through an unlocked door when you slow down or stop your vehicle. This may not be so obvious: You increase the chance of being thrown out of the vehicle in a crash if the doors aren't locked. Wear safety belts properly, lock your doors, and you will be far better off whenever you drive your vehicle. There are several ways to lock and unlock your vehicle. From the outside, use your door key. If your vehicle has a theft-deterrent system and it is activated, unlock the doors only with the key or remote keyless entry system. This will avoid setting off the alarm. To lock the door from the inside, move the lock control on the door forward. To unlock the door, move the lock control toward the rear of the vehicle. There is a red mark on the lock control which shows when the door is unlocked. Central Door Unlocking System (Option) If the driver's door key is held in the unlock position for more than one second, both doors will unlock. 2-4