rear GMC SIERRA 2000 Owner's Manual

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ix
For example,
these symbols
are used on an
original battery:
CAUTION
POSSIBLE
INJURY
PROTECT
EYES BY
SHIELDING
CAUSTIC
BATTERY
ACID COULD
CAUSE
BURNS
AVOID
SPARKS OR
FLAMES
SPARK OR
FLAME
COULD
EXPLODE
BATTERY
These symbols
are important
for you and
your passengers
whenever your
vehicle is
driven:
DOOR LOCK
UNLOCK
FASTEN
SEAT
BELTS
POWER
WINDOW
AIR BAG
These symbols
have to do with
your lamps:
MASTER
LIGHTING
SWITCH
TURN
SIGNALS
PARKING
LAMPS
HAZARD
WARNING
FLASHER
DAYTIME
RUNNING
LAMPS
FOG LAMPS
These symbols
are on some of
your controls:
WINDSHIELD
WIPER
WINDSHIELD
WASHER
WINDSHIELD
DEFROSTER
REAR
WINDOW
DEFOGGER
VENTILATING
FAN
These symbols
are used on
warning and
indicator lights:
ENGINE
COOLANT
TEMP
BATTERY
CHARGING
SYSTEM
BRAKE
COOLANT
ENGINE OIL
PRESSURE
ANTI-LOCK
BRAKES
Here are some
other symbols
you may see:
FUSE
LIGHTER
HORN
SPEAKER
FUEL
Vehicle Symbols
These are some of the symbols you may find on your vehicle.

1-
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1-1
Section 1 Seats and Restraint Systems
Here you'll find information about the seats in your vehicle and how to use your safety belts properly. You can also
learn about some things you should not do with air bags and safety belts.
1
-2 Seats and Seat Controls
1
-11 Safety Belts: They're for Everyone
1
-15 Here Are Questions Many People Ask About
Safety Belts
-- and the Answers
1
-16 How to Wear Safety Belts Properly
1
-16 Driver Position
1
-23 Safety Belt Use During Pregnancy
1
-24 Right Front Passenger Position
1
-24 Air Bag System
1
-35 Center Passenger Position1
-36 Rear Seat Passengers
1
-40 Rear Safety Belt Comfort Guides for Children
and Small Adults
1
-42 Children
1
-46 Child Restraints
1
-62 Larger Children
1
-65 Safety Belt Extender
1
-65 Checking Your Restraint Systems
1
-65 Replacing Restraint System Parts After
a Crash

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1-3
Cushion Tilt (If Equipped)
If your vehicle has this feature, you can raise or lower
the front of the driver's or passenger's seat with this
lever located at the inside edge of the seat. To raise or
lower the front of the seat, move the lever up or down in
a continuous motion until the cushion reaches the
desired height.
Manual Lumbar Control (If Equipped)
If your vehicle has a lumbar
adjustment, you can
increase or decrease lumbar
support in an area of the
lower seatback.
To increase support, turn the knob towards the front of
the vehicle.
To decrease support, turn the knob towards the rear of
the vehicle.

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1-4 Power Seat(s) (If Equipped)
Horizontal Control: If your vehicle has a power seat,
you can adjust it with this control located at the outside
edge of the seat.Raise the front of the seat cushion by raising the forward
edge of the button. Lower the front of the seat cushion
by lowering the forward edge of the button. Move the
seat forward by moving the whole button toward the
front of the vehicle.
Raise the rear of the seat cushion by raising the rear
edge of the button. Lower the rear of the seat cushion by
lowering the rear edge of the button. Move the seat
rearward by moving the whole button toward the rear of
the vehicle.
Moving the whole button up or down raises or lowers
the entire seat cushion.
Vertical Control: If your vehicle has the power
reclining seats, you can use this button to adjust the
angle of the seatback. Move the reclining front seatback
rearward by moving the button toward the rear of the
vehicle. Move the seatback forward by moving the
button toward the front of the vehicle. See ªReclining
Seatbacksº in the Index for further information.

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1-5 Power Lumbar Control (If Equipped)
If you have power lumbar
adjustment, you can
increase or decrease lumbar
support in an area of the
lower seatback.
To increase support, press and hold the front of the
control. Let go of the control when the lower seatback
reaches the desired level of support.
To decrease support, press and hold the rear of the
control. Let go of the control when the lower seatback
reaches the desired level of support.
You can also reshape the back wing area of the
lower seatback.
To increase support, press and hold the top of the
control. Let go of the control when the lower seatback
reaches the desired level of support.
To decrease support, press and hold the bottom of the
control. Let go of the control when the lower seatback
reaches the desired level of support.
Memory Seat (If Equipped)
The memory function
controls the driver's
seat cushion and
recliner positions.
It does not store the lumbar or back support positions.
To set your memory seat:
1. Adjust the driver's seat to your desired position.
2. Press the SET button and then press the 1 or 2 side
of the memory control within five seconds.
When your vehicle is in PARK (P), press the 1 or 2
button of the memory control to recall the seat setting.
To do the same thing for a second driver, follow the
preceding steps, but press the other number of the
memory control.

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1-8 Head Restraints
Slide the head restraint up or down so that the top of the
restraint is closest to the top of your ears. This position
reduces the chance of a neck injury in a crash.
On some models, the head restraints tilt forward and
rearward also.
To tilt the head restraints forward, grasp the top of the
restraint and move it forward to where you want it to go
until you hear a click. It will then be locked into that
position until you need to move it again. Pulling it
forward past the last position will allow the restraint to
return to its upright position.
Seatback Latches
CAUTION:
If the seatback isn't locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it
is locked.
The seatbacks fold forward to let you access the rear of
the cab.
To fold a front seatback
forward, pull this lever
forward and fold the
seatback forward.
To return the seatback to the upright position, just push
the seatback rearward until it latches. After returning the
seatback to its upright position, pull the seatback
forward to make sure it is locked.

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1-9 Easy Entry Seat (Extended Cab Only)
(If Equipped)
CAUTION:
If any easy entry seat isn't locked, it can move.
In a sudden stop or crash, the person sitting there
could be injured. And, even if there is no crash or
sudden stop, a driver sitting in an unlocked easy
entry seat could be startled by the sudden
movement and hit the wrong control or pedal,
causing an accident. After you've used it, be sure
to push rearward on any easy entry seat to be
sure it is locked.
The manual driver side front bucket seat and the manual
driver side split bench seat of your vehicle may have an
easy entry feature. This makes it easy to get in and out
of the rear seat.
To operate the seat, pull
forward on the top of this
lever and tilt the seatback
forward toward the front of
the vehicle.
When you do, the seat bottom will release. Just pull or
push the seat forward until it stops.
To return the seat to its regular position, return the
seatback to its upright position, then push the whole seat
rearward until it latches.
After returning the seat to its regular position, try to
move the seat with your body in order to make sure the
seat is locked into place.

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1-10 Rear Seat (Extended Cab)
Folding the Rear Seat
The extended cab's rear seat can be folded up to provide
more cargo space. To fold the seat:
1. Pull forward on the
release strap located
under the rear
seat cushion.
2. Fold the seat cushion upward until it latches with
the seatback.
3. Push and pull on the seat
to make sure the seat
is secure.
The extended cab's rear seat can also be folded open for
more seating space. To use the seat:
1. Push rearward on the seat cushion while pulling up
on the release strap under the seat cushion. Pull the
seat cushion downward until it latches.
2. After pulling the seat cushion down, pull up on it to
make sure it is locked.

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1-24
The best way to protect the fetus is to protect the
mother. When a safety belt is worn properly, it's more
likely that the fetus won't be hurt in a crash. For
pregnant women, as for anyone, the key to making
safety belts effective is wearing them properly.
Right Front Passenger Position
To learn how to wear the right front passenger's safety
belt properly, see ªDriver Positionº earlier in
this section.
The right front passenger's safety belt works the same
way as the driver's safety belt
-- except for one thing.
If you ever pull the shoulder portion of the belt out all
the way, you will engage the child restraint locking
feature. If this happens, just let the belt go back all the
way and start again.
Air Bag System
This part explains the air bag system.
Your vehicle has air bags
-- one air bag for the driver
and another air bag for the right front passenger.
Frontal air bags are designed to help reduce the risk of
injury from the force of an inflating air bag. But these
air bags must inflate very quickly to do their job and
comply with federal regulations.Here are the most important things to know about the air
bag system:
CAUTION:
You can be severely injured or killed in a crash if
you aren't wearing your safety belt
-- even if you
have air bags. Wearing your safety belt during a
crash helps reduce your chance of hitting things
inside the vehicle or being ejected from it. Air
bags are ªsupplemental restraintsº to the safety
belts. All air bags are designed to work with
safety belts, but don't replace them. Air bags are
designed to work only in moderate to severe
crashes where the front of your vehicle hits
something. They aren't designed to inflate at all
in rollover, rear, side or low
-speed frontal
crashes. And, for unrestrained occupants, air
bags may provide less protection in frontal
crashes than more forceful air bags have
provided in the past. Everyone in your vehicle
should wear a safety belt properly
-- whether or
not there's an air bag for that person.

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1-28
When should an air bag inflate?
An air bag is designed to inflate in a moderate to severe
frontal or near
-frontal crash. The air bag will inflate
only if the impact speed is above the system's designed
ªthreshold level.º If your vehicle goes straight into a
wall that doesn't move or deform, the threshold level is
about 9 to 16 mph (14 to 26 km/h). The threshold level
can vary, however, with specific vehicle design, so that
it can be somewhat above or below this range. If your
vehicle strikes something that will move or deform, such
as a parked car, the threshold level will be higher. The
air bag is not designed to inflate in rollovers, side
impacts or rear impacts, because inflation would not
help the occupant.
In any particular crash, no one can say whether an air
bag should have inflated simply because of the damage
to a vehicle or because of what the repair costs were.
Inflation is determined by the angle of the impact and
how quickly the vehicle slows down in frontal or
near
-frontal impacts.
The air bag system is designed to work properly under a
wide range of conditions, including off
-road usage.
Observe safe driving speeds, especially on rough terrain.
As always, wear your safety belt. See ªOff
-Road
Drivingº in the Index for more tips on off
-road driving.What makes an air bag inflate?
In an impact of sufficient severity, the air bag sensing
system detects that the vehicle is in a crash. The sensing
system triggers a release of gas from the inflator, which
inflates the air bag. The inflator, air bag and related
hardware are all part of the air bag modules inside the
steering wheel and in the instrument panel in front of the
right front passenger.
How does an air bag restrain?
In moderate to severe frontal or near
-frontal collisions,
even belted occupants can contact the steering wheel or
the instrument panel. Air bags supplement the protection
provided by safety belts. Air bags distribute the force of
the impact more evenly over the occupant's upper body,
stopping the occupant more gradually. But air bags
would not help you in many types of collisions,
including rollovers, rear impacts and side impacts,
primarily because an occupant's motion is not toward
those air bags. Air bags should never be regarded as
anything more than a supplement to safety belts,
and then only in moderate to severe frontal or
near
-frontal collisions.