2007 GMC SIERRA CLASSIC lock

Seats and Restraint Systems
....................... 7
Front Seats
.............................................. 9
Rear Seats
............................................. 19
Safety Belts
............................................ 22
Child Restraints
...................................... 44
Airbag System
........................................ 91
Restraint System Check
....................... 111
Features and Controls
.............................. 113
Keys
..................................................... 115
Doors and Locks
.................................. 120
Windows
............................................... 129
Theft-Deterrent Systems
....................... 131
Starting and Operating Your Vehicle
..... 134
Mirrors
.................................................. 176OnStar®System
................................... 189
Universal Home Remote System
.......... 191
Storage Areas
...................................... 202
Sunroof
................................................ 205
Instrument Panel
....................................... 207
Instrument Panel Overview
................... 210
Climate Controls
................................... 230
Warning Lights, Gages, and Indicators
.... 244
Driver Information Center (DIC)
............ 265
Audio System(s)
................................... 289
Driving Your Vehicle
................................. 355
Your Driving, the Road, and
Your Vehicle
..................................... 356
Towing
................................................. 423
2007 GMC Sierra Classic Owner ManualM
1

Front Seats
Manual Seats
{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.If your vehicle has a manual bucket or a split
bench seat, you can adjust the seat forward or
rearward with the bar located under the front of the
seat cushion.
Lift the bar to unlock the seat. Slide the seat to
where you want it and release the bar. Try to move
the seat with your body to be sure the seat is
locked in place.
9

Reclining Seatbacks
Manual Reclining Seatbacks
{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.
{CAUTION:
If the seatback is not locked, it could
move forward in a sudden stop or crash.
That could cause injury to the person
sitting there. Always push and pull on the
seatback to be sure it is locked.If your seats have manual reclining seatbacks, the
lever used to operate them is located on the
outboard side of the seat(s).
To recline the seatback, do the following:
1. Lift the recline lever.
2. Move the seatback to the desired position,
then release the lever to lock the seatback
in place.
3. Push and pull on the seatback to make sure it
is locked.
15

To return the seatback to an upright position, do
the following:
1. Lift the lever fully without applying pressure to
the seatback and the seatback will return to
the upright position.
2. Push and pull on the seatback to make sure it
is locked.Power Reclining Seatbacks
If your seats have power reclining seatbacks, use
the vertical power seat control located on the
outboard side of the seat(s).
To recline the seatback, press the control
toward the rear of the vehicle.
To raise the seatback, press the control
toward the front of the vehicle.
16

Head Restraints
Adjust the head restraint so that the top of the
restraint is at the same height as the occupant’s
head. This position reduces the chance of a
neck injury in a crash.
Pull the head restraint up to raise it. Push the
head restraint down to lower it.
The rear seats may have head restraints that can
be adjusted up and down.
Seatback Latches
The front seatbacks fold forward to allow access
to the rear of the cab.
To fold the seatback forward, lift the lever located
on the outboard side of the seat cushion.
{CAUTION:
If the seatback is not locked, it could
move forward in a sudden stop or crash.
That could cause injury to the person
sitting there. Always push and pull on the
seatback to be sure it is locked.
To return the seatback to the upright position,
push the seatback rearward until it latches. After
returning the seatback to its upright position,
push and pull on the seatback to make sure it is
locked.
18

Rear Seats
Rear Seat Operation (Extended Cab)
Folding the Rear Seat
The rear seat in the extended cab can be folded
up to provide more cargo space.
To fold the seat up, do the following:
Notice:Folding a rear seat with the safety
belts still fastened may cause damage to the
seat or the safety belts. Always unbuckle
the safety belts and return them to their normal
stowed position before folding a rear seat.
1. Push down on the
front of the seat
cushion while pulling
down on the
release strap,
located under the
seat cushion.2. Pull the seat cushion up until it latches with
the seatback.
3. After latching the seat cushion up, pull
forward on it to make sure it is locked.
The seat can also be folded down for more
seating space.
To fold the seat down, do the following:
1. Push the seat cushion while pulling the
release strap, located under the seat cushion.
Pull the seat cushion down until it latches.
2. After latching the seat cushion, pull up on it to
make sure it is locked.
19

To return the seat to the normal seating position,
do the following:
1. Lift the seatback up and push it rearward all
the way.
{CAUTION:
If the seatback is not locked, it could
move forward in a sudden stop or crash.
That could cause injury to the person
sitting there. Always push and pull on the
seatback to be sure it is locked.
2. Push and pull on the seatback to make sure it
is locked into place.
3. Lower the seat cushion until it latches into
position. Pull up on the cushion to make
sure it is locked into place.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not
provide the protection needed in a crash.
The person wearing the belt could be
seriously injured. After raising the rear
seatback, always check to be sure that the
safety belts are properly routed and
attached, and are not twisted.
Make sure that the safety belt buckles on the
driver’s side seatback are accessible to the
outboard and center occupant and are not under
the seat cushions.
21

Q:If I am a good driver, and I never drive far
from home, why should I wear safety belts?
A:You may be an excellent driver, but if you are
in an accident — even one that is not your
fault — you and your passengers can be hurt.
Being a good driver does not protect you
from things beyond your control, such as bad
drivers.
Most accidents occur within 25 miles (40 km)
of home. And the greatest number of
serious injuries and deaths occur at speeds of
less than 40 mph (65 km/h).
Safety belts are for everyone.
How to Wear Safety Belts Properly
This part is only for people of adult size.
Be aware that there are special things to know
about safety belts and children. And there
are different rules for smaller children and babies.
If a child will be riding in your vehicle, see
Older Children on page 44orInfants and Young
Children on page 47. Follow those rules for
everyone’s protection.
First, you will want to know which restraint
systems your vehicle has.
We will start with the driver position.
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.
27