GMC T-Series 1999, Owner'S Manual, Page: 8 / 344

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Seats and Seat Controls
This section tells you about the seats in your vehicle and
how to adjust them properly.
Bucket Seats
Your vehicle has bucket
seats. You can adjust
the driver’s seat with
these levers at the front
of the seat.
Slide lever (A) to the left to unlock the seat and slide the
seat to where you want it. Then, release the lever and try
to move the seat with your body, to make sure the seat is
locked into place.
To adjust the lower seat cushion forward or backward,
pull up on lever (B) and slide the cushion to where you
want it. Then release the lever.
To tilt the seatback, turn the
backrest tilt knob. The knob
is located on the lower
cushion, on the outboard
side of the driver’s seat and
the inboard side of the
passenger’s seat.
To get more support in the
lumbar area of your back,
turn the lumbar adjustment
knob. The knob is located
on the upper cushion, on the
inboard side of the driver’s
seat and the outboard side
of the passenger’s seat.