remove seats GMC SIERRA 1500 2012 User Guide

Black plate (58,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-58 Seats and Restraints
6. If the child restraint has a toptether, follow the child restraint
manufacturer's instructions
regarding the use of the top
tether. See Lower Anchors and
Tethers for Children (LATCH
System) on page 3‑47 for more
information.
7. Before placing a child in the child restraint, make sure it is
securely held in place. To
check, grasp the child restraint
at the safety belt path and
attempt to move it side‐to‐side
and back‐and‐forth. When
the child restraint is properly
installed, there should be no
more than 2.5 cm (1 in) of
movement.
To remove the child restraint,
unbuckle the vehicle safety belt and
let it return to the stowed position.
If the top tether is attached to a top
tether anchor, disconnect it.Securing Child Restraints
(Center Front Seat
Position)
{WARNING
A child in a child restraint in the
center front seat can be badly
injured or killed by the frontal
airbags if they inflate. Never
secure a child restraint in the
center front seat. It is always
better to secure a child restraint in
a rear seat.
Do not use child restraints in the
center front seat position.
Securing Child Restraints
(Right Front Seat
Position)
With Passenger Sensing
System
This vehicle has airbags. A rear
seat is a safer place to secure a
forward-facing child restraint. See
Where to Put the Restraint on
page 3‑45.
In addition, the vehicle may have a
passenger sensing system which is
designed to turn off the right front
passenger frontal airbag under
certain conditions. See Passenger
Sensing System on page 3‑32 and
Passenger Airbag Status Indicator
on page 5‑21 for more information
on this, including important safety
information.
A label on the sun visor says,
“Never put a rear-facing child seat in
the front.” This is because the risk to
the rear-facing child is so great,
if the airbag deploys.

Black plate (61,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-61
6. To tighten the belt, push downon the child restraint, pull the
shoulder portion of the belt to
tighten the lap portion of the belt,
and feed the shoulder belt back
into the retractor. When installing
a forward-facing child restraint,
it may be helpful to use your
knee to push down on the child
restraint as you tighten the belt. Try to pull the belt out of the
retractor to make sure the
retractor is locked. If the
retractor is not locked, repeat
Steps 5 and 6.
7. If the vehicle does not have a rear seat and the child restraint
has a top tether, follow the
child restraint manufacturer's
instructions regarding the use
of the top tether. See Lower
Anchors and Tethers for
Children (LATCH System) on
page 3‑47 for more information.
8. Before placing a child in the child restraint, make sure it is
securely held in place. To check,
grasp the child restraint at the
safety belt path and attempt to
move it side to side and back
and forth. When the child
restraint is properly installed,
there should be no more than
2.5 cm (1 in) of movement. If the vehicle is equipped with a
passenger sensing system, and
when the passenger sensing
system has turned off the right front
passenger frontal airbag, the off
indicator in the passenger airbag
status indicator should light and stay
lit when you start the vehicle.
If a child restraint has been installed
and the on indicator is lit, see
“If
the On Indicator is Lit for a Child
Restraint” underPassenger Sensing
System on page 3‑32 for more
information.
To remove the child restraint,
unbuckle the vehicle safety belt and
let it return to the stowed position.
If the top tether is attached to a top
tether anchor, disconnect it.

Black plate (65,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-65
7. If your vehicle does not have arear seat and your child restraint
has a top tether, follow the
child restraint manufacturer's
instructions regarding the use
of the top tether. See Lower
Anchors and Tethers for
Children (LATCH System) on
page 3‑47.
8. Before placing a child in the child restraint, make sure it is
securely held in place. To check,
grasp the child restraint at the
safety belt path and attempt to
move it side to side and back
and forth. When the child
restraint is properly installed,
there should be no more than
2.5 cm (1 in) of movement.
To remove the child restraint,
unbuckle the vehicle safety belt and
let it return to the stowed position.
If the top tether is attached to a top
tether anchor, disconnect it. If you turned the airbag off with
the switch, turn on the right front
passenger airbag when you remove
the child restraint from the vehicle
unless the person who will be sitting
there is a member of a passenger
airbag risk group. See
Airbag
On-Off Switch on page 3‑29 for
more information, including
important safety information.
Heavy Duty Crew Cab Only
This vehicle has airbags. A rear
seat is a safer place to secure a
forward-facing child restraint. See
Where to Put the Restraint on
page 3‑45.
A label on the sun visor says,
“Never put a rear-facing child seat in
the front.” This is because the risk to
the rear-facing child is so great,
if the airbag deploys. Never
put a rear-facing child
restraint in the right front passenger
seat. Here is why:
{WARNING
A child in a rear-facing child
restraint can be seriously
injured or killed if the right front
passenger's airbag inflates. This
is because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. Always secure a
rear-facing child restraint in a
rear seat.
If the vehicle does not have a rear
seat that will accommodate a
rear-facing child restraint, a
rear-facing child restraint should not
be installed in the vehicle, even if
the airbag is off.

Black plate (67,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-67
5. Pull the shoulder belt all the wayout of the retractor to set the
lock. When the retractor lock is
set, the belt can be tightened but
not pulled out of the retractor.6. To tighten the belt, push downon the child restraint, pull the
shoulder portion of the belt to
tighten the lap portion of the belt,
and feed the shoulder belt back
into the retractor. When installing
a forward-facing child restraint,
it may be helpful to use your
knee to push down on the child
restraint as you tighten the belt.
Try to pull the belt out of the
retractor to make sure the
retractor is locked. If the
retractor is not locked, repeat
Steps 5 and 6. 7. If your child restraint has a top
tether, follow the child restraint
manufacturer's instructions
regarding the use of the top
tether. See Lower Anchors and
Tethers for Children (LATCH
System) on page 3‑47 for more
information.
8. Before placing a child in the child restraint, make sure it is
securely held in place. To check,
grasp the child restraint at the
safety belt path and attempt to
move it side to side and back
and forth. When the child
restraint is properly installed,
there should be no more than
2.5 cm (1 in) of movement.
To remove the child restraint,
unbuckle the vehicle safety belt and
let it return to the stowed position.
If the top tether is attached to a top
tether anchor, disconnect it.

Black plate (53,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Instruments and Controls 5-53
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
PARK TILT MIRRORS
If the vehicle has this feature, it
allows you to select if the outside
mirror(s) will automatically tilt down
when the vehicle is shifted into
R (Reverse). SeePark Tilt Mirrors
on page 2‑17 for more information.
Press the customization button until
PARK TILT MIRRORS appears on
the DIC display. Press the set/reset
button once to access the settings
for this feature. Then press the
customization button to scroll
through the following settings:
OFF (default): Neither outside
mirror will be tilted down when the
vehicle is shifted into R (Reverse).
DRIVER MIRROR: The driver
outside mirror will be tilted down
when the vehicle is shifted into
R (Reverse). PASSENGER MIRROR:
The
passenger outside mirror will be
tilted down when the vehicle is
shifted into R (Reverse).
BOTH MIRRORS: The driver and
passenger outside mirrors will be
tilted down when the vehicle is
shifted into R (Reverse).
NO CHANGE: No change will be
made to this feature. The current
setting will remain.
To select a setting, press the set/
reset button while the desired
setting is displayed on the DIC.
EASY EXIT RECALL
If the vehicle has this feature, it
allows you to select your preference
for the automatic easy exit seat
feature. See Memory Seats on
page 3‑7 for more information. Press the customization button until
EASY EXIT RECALL appears on
the DIC display. Press the set/reset
button once to access the settings
for this feature. Then press the
customization button to scroll
through the following settings:
DOOR BUTTON ONLY:
No
automatic seat exit recall will occur.
The recall will only occur after
pressing the easy exit seat button.
BUTTON & KEY OUT (default): If
the features are enabled through
the EASY EXIT SETUP menu, the
driver seat will move back when the
key is removed from the ignition or
the easy exit seat button is pressed.
The automatic easy exit seat
movement will only occur one time
after the key is removed from the
ignition. If the automatic movement
has already occurred, and you put
the key back in the ignition and
remove it again, the seat will stay in
the original exit position, unless a
memory recall took place prior to
removing the key again.

Black plate (9,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Lighting 6-9
Lighting Features
Entry Lighting
The vehicle has an illuminated entry
feature.
When the doors are opened, the
dome lamps will come on if the
dome override button is in the
extended position. If the dome
override button is pressed in, the
lamps will not come on.
Exit Lighting
The interior lamps come on when
the key is removed from the ignition.
They turn off automatically in
20 seconds. The lights do not come
on if the dome override button is
pressed in.
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fast
enough at idle to produce all of
the power needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power whenever
needed. It can temporarily reduce
the power demands of some
accessories.

Black plate (84,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
10-84 Vehicle Care
{WARNING
Wheel nuts that are improperly or
incorrectly tightened can cause
the wheels to become loose or
come off. The wheel nuts should
be tightened with a torque wrench
to the proper torque specification
after replacing. Follow the torque
specification supplied by the
aftermarket manufacturer when
using accessory locking wheel
nuts. SeeCapacities and
Specifications on page 12‑2 for
original equipment wheel nut
torque specifications.
Notice: Improperly tightened
wheel nuts can lead to brake
pulsation and rotor damage. To
avoid expensive brake repairs,
evenly tighten the wheel nuts in
the proper sequence and to the
proper torque specification. See
Capacities and Specifications on
page 12‑2 for the wheel nut
torque specification.
13. Tighten the nuts firmly in a crisscross sequence, as
shown, by turning the wheel
wrench clockwise.
For vehicles with dual wheels,
have a technician check the wheel
nut tightness of all wheels with
a torque wrench after the first
160 km (100 mi) and then 1600 km
(1,000 mi) after that. Repeat this
service whenever you have
a tire removed or serviced. See
Capacities and Specifications on
page 12‑2 for more information.
When reinstalling the regular wheel
and tire, also reinstall either the
center cap, or bolt-on hub cap,
depending on what the vehicle is
equipped with. For center caps, place the cap on the wheel and tap
it into place until it seats flush with
the wheel. The cap only goes on
one way. Be sure to line up the
tab on the center cap with the
indentation on the wheel. For
bolt-on hub caps, align the plastic
nut caps with the wheel nuts and
then tighten by hand. Then use the
wheel wrench to tighten.
Storing a Flat or Spare Tire
and Tools
{WARNING
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
Notice: Storing an aluminum
wheel with a flat tire under your
vehicle for an extended period
of time or with the valve stem