Power Seat Adjustment; Lumbar Adjustment - GMC Sierra Limited 1500 2019 Owner's Manual

58 Seats and Restraints

Power Seat Adjustment

Warning
The power seats will work with
the ignition off. Children could
operate the power seats and be
injured. Never leave children
alone in the vehicle.
To adjust a power seat, if equipped:
Move the seat forward or
rearward by sliding the control
forward or rearward.
If equipped, raise or lower the
front part of the seat cushion by
moving the front of the control
up or down.
If equipped, raise or lower the
seat by moving the rear of the
control up or down.
To adjust the seatback, see
Reclining Seatbacks 0 59.
To adjust the lumbar support, see

Lumbar Adjustment 0 58.

Some vehicles are equipped with a
feature that activates a vibrating
pulse alert in the driver seat to help
the driver avoid crashes. See Driver
Assistance Systems 0 283.
Lumbar Adjustment
Manual Lumbar
If equipped, move the lever up or
down repeatedly to increase or
decrease lumbar support.