2005 Buick Rainier Owner's Manual - Page 76

There are several ways to lock and unlock your vehicle. You can use the remote keyless entry transmitter or you can use your key to unlock your door from the outside. Power Door Locks The power door lock switches are located on the driver's and front passenger's armrests. Remove the ignition key and press the lock symbol to lock all of the doors at once. To unlock the doors, press the other side of the switch. You can lock or unlock the door from the inside by sliding the manual lever forward or rearward. The manual lever on each door works only that door's lock. 2-8