Buick 2011 Regal - Manual (Page 47)

Seats and Restraints 3-5
Lumbar Adjustment
To increase or decrease lumbar
support, press and hold the front or
rear of the round control knob.
To raise or lower lumbar support,
press and hold the top or bottom of
the round control knob.
Release the control knob when the
seatback reaches the desired level
of lumbar support.
See Power Seat Adjustment on
page 3‑4 for more information.
Reclining Seatbacks
{
WARNING
You can lose control of the
vehicle if you try to adjust the
seat while the vehicle is moving.
The sudden movement could
startle and confuse you, or make
you push a pedal when you do
not want to. Adjust the driver's
seat only when the vehicle is not
moving.
{
WARNING
Sitting in a reclined position when
the vehicle is in motion can be
dangerous. Even when buckled
up, the safety belts cannot do
their job when reclined like this.
The shoulder belt cannot do its
job because it will not be against
your body. Instead, it will be in
front of you. In a crash, you could
go into it, receiving neck or other
injuries.
The lap belt cannot do its job
either. In a crash, the belt could
go up over your abdomen. The
belt forces would be there, not at
your pelvic bones. This could
cause serious internal injuries.
For proper protection when the
vehicle is in motion, have the
seatback upright. Then sit well
back in the seat and wear the
safety belt properly.