Buick 2004 Rainier - Manual (Page 71)

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.
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.
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