Power Lumbar
Your vehicle has power lumbar on the driver’s and front passenger’s seats.

The seatback lumbar support can be adjusted by moving the control located on the outboard side of the seat cushions.
To increase or decrease support, hold the control forward or rearward.
Keep in mind that as your seating position changes, as it may during long trips, so should the position of your lumbar support. Adjust the seat as needed.
See also:
What to Use
To determine what kind of fluid to use, see
Recommended Fluids and Lubricants.
Always use the proper fluid.
Notice: Use of the incorrect fluid may damage the
vehicle and the damages may not be c ...
Balance in ride, handling
With its choice of two powerful engines and strong body-on-frame
construction, Rainier carries solid truck credentials. But its silky feel and
performance on the road are more akin to a fine touri ...
Additional Factors Affecting System
Operation
Safety belts help keep the passenger in position on the
seat during vehicle maneuvers and braking, which
helps the passenger sensing system maintain the
passenger airbag status. See “Safety Be ...
