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Front Seats......................................................1-2
Bucket Seats.................................................1-2
Split Bench Seat (80/20 Split)..........................1-6
Air Suspension Seats......................................1-6
Rear Seats.......................................................1-8
Rear Seat Operation.......................................1-8
Safety Belts.....................................................1-9
Safety Belts: They Are for Everyone.................1-9
Questions and Answers About Safety Belts......1-14
How to Wear Safety Belts Properly.................1-14
Driver Position..............................................1-15
Shoulder Belt Height Adjustment.....................1-22
Safety Belt Use During Pregnancy..................1-23
Right Front Passenger Position.......................1-23
Center Passenger Position.............................1-24
Rear Outside Passenger Positions
(Crew Cab) ..............................................1-25
Safety Belt Extender.....................................1-28
Child Restraints.............................................1-28
Older Children..............................................1-28
Infants and Young Children............................1-31
Child Restraint Systems.................................1-34
Where to Put the Restraint
(Regular Cab Models)................................1-38Where to Put the Restraint
(Crew Cab Models)....................................1-40
Lower Anchors and Tethers for Children
(LATCH)..................................................1-41
Securing a Child Restraint in a
Rear Outside Seat Position
(Crew Cab Models)....................................1-42
Securing a Child Restraint in the
Center Rear Seat Position (Crew Cab) or
Center Front Position.................................1-44
Securing a Child Restraint in the
Right Front Seat Position............................1-46
Airbag System...............................................1-50
Where Are the Airbags?................................1-54
When Should an Airbag Inflate?.....................1-55
What Makes an Airbag Inflate?.......................1-56
How Does an Airbag Restrain?.......................1-56
What Will You See After an Airbag Inflates?.....1-56
Airbag Off Switch..........................................1-58
Servicing Your Airbag-Equipped Vehicle...........1-61
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................1-61
Restraint System Check..................................1-62
Checking the Restraint Systems......................1-62
Replacing Restraint System Parts After a
Crash......................................................1-63
Section 1 Seats and Restraint Systems
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Front Seats
Bucket Seats
If your vehicle has bucket seats, you can adjust the
seats several different ways.
Fore-and-Aft Adjustment
{CAUTION:
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.The fore-and-aft
adjustment lever is
located underneath the
front of the driver’s seat.
To slide the seat forward or rearward, move the lever
toward the outboard side of the seat. The seat will lock
in at 1/2 inch (1.5 cm) increments.
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Lumbar Adjustment
Your seats may have this feature.
The lumbar adjustment
knob is located on the
seatback, on the inboard
side of the driver’s seat and
on the outboard side of the
passenger’s seat.
For more support to your lower back, turn the lumbar
adjustment knob clockwise. To decrease the amount of
lumbar support, turn the knob counterclockwise.
Seatback Adjustment
Your vehicle will have one of the following seatback
reclining mechanisms.
{CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver’s 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.
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Split Bench Seat (80/20 Split)
If your vehicle has a split bench seat, the passenger
seat is not adjustable.
There is a storage area underneath the seat cushion.
SeeStorage Areas on page 2-49.
Air Suspension Seats
Your vehicle may have a low-back or high-back air
suspension seat. There are two ways you can adjust
the seat.
Height Adjustment
The suspension seat
height adjustment lever is
located on the front
inboard side of the seat.
To adjust the height of the air suspension seat, pull the
lever up to inflate. Push the lever down to deflate.
The seat cushion can also be raised or lowered.
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The seat cushion height
adjustment handle is
located underneath the
front of the seat.
To adjust the height of the cushion, lift the handle up
and pull it forward. You can choose between two
settings.Chugger-Snubber Lock-Out Feature
If your vehicle has this
feature, the handle is
located on the outboard
side of the driver’s
and passenger’s seats.
Move the handle down to reduce any backslap
experienced while in tractor/trailer operation or while
operating a dump truck application.
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Driver Position
Lap-Shoulder Belt
The driver has a lap-shoulder belt. Here is how to wear
it properly.
1. Close and lock the door.
2. Adjust the seat so you can sit up straight. To see
how, see “Seats” in the Index.
3. Pick up the latch plate and pull the belt across you.
Do not let it get twisted.The shoulder belt may lock if you pull the belt
across you very quickly. If this happens, let the belt
go back slightly to unlock it. Then pull the belt
across you more slowly.
4. Push the latch plate into the buckle until it clicks.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, seeSafety Belt
Extender on page 1-28.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
5. Move the shoulder belt height adjuster to the height
that is right for you. Improper shoulder belt height
adjustment could reduce the effectiveness of
the safety belt in a crash. SeeShoulder Belt Height
Adjustment on page 1-22.
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Outlet Adjustment
Your vehicle has air outlets on the instrument panel that
allow you to adjust the direction and amount of airflow
inside the vehicle.
Move the lever on the outlet up or down to direct the
airflow. Increase or reduce the amount of airflow
by opening and closing the louvers. The outlets can be
moved side-to-side to direct the airflow.
Operation Tips
•
Keep the hood and front air inlets free of ice, snow,
or any other obstruction (such as leaves). The
heater and defroster will work far better, reducing
the chance of fogging the inside of your windows.
•Keep the air path under the front seats clear
of objects. This helps air to circulate throughout
your vehicle.
•Adding outside equipment to the front of your
vehicle, such as hood-air deflectors, may affect the
performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
Rear Heating System
If you have a crew cab
and your vehicle has a
rear heater, the
thumbwheel for this
feature is located on the
headliner.
To increase and decrease the flow of heated air to the
rear floor vents, turn the thumbwheel to the desired
fan speed. To turn the fan off, turn the thumbwheel all
the way down.
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Electric Air Compressor
Your vehicle may have an electric air compressor. This
compressor is used to run options that require
pressurized air, such as air horn, air seat, 7.8L engine
exhaust restrictor, or 7.8L engine exhaust brake.
The air compressor is used when vehicles are not
equipped with an air brake system.
The air supply for this
system must be
maintained by releasing
the drain valve to eject any
moisture that may have
built up in the system.
It is recommended that this system be drained on a
weekly basis.
Clutch Pedal Free Travel
If you have a V8 engine and a manual transmission,
your clutch will need adjustment when pedal free travel
gets down to about 1/4 inch (32 mm), as measured
at the clutch pedal pad. You should have 1 1/2 to
2 inches (38 to 51 mm) of clutch pedal free travel.
If your clutch ever needs service, be sure to use only
GM clutch replacement parts.
Chassis Lubrication
Your Maintenance Schedule provides all of the required
chassis lubrication intervals and identifies proper
lubricants to use. Be sure to see your Maintenance
Schedule before performing any chassis lubrication
service. To determine location of chassis lubrication
items, use the following charts.
5-53