ECU GMC YUKON DENALI 2010 Owner's Manual

5. To tighten the belt, push down on the childrestraint, 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. 6. If 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)
on page 2‑59for
more information.
7. Push and pull the child restraint in different directions to be sure it is secure.
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 a Child Restraint in the
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.
2-70

Securing a Child Restraint in the
Right Front Seat Position
This vehicle has airbags. A rear seat is a safer place to
secure a forward-facing child restraint. SeeWhere to
Put the Restraint on page 2‑58.
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 2‑85and
Passenger Airbag Status Indicatoron page 4‑29for
more information, 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.
{WARNING:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger airbag inflates. This is because the
back of the rear-facing child restraint would be
very close to the inflating airbag. A child in a
forward-facing child restraint can be seriously
(Continued)
WARNING: (Continued)
injured or killed if the right front passenger airbag
inflates and the passenger seat is in a forward
position.
The vehicle may have a passenger sensing
system which is designed to turn off the right front
passenger frontal airbag under certain conditions.
Even if the passenger sensing system, if
equipped, has turned off the right front passenger
frontal airbag, no system is fail-safe. No one can
guarantee that an airbag will not deploy under
some unusual circumstance, even though it is
turned off.
Secure rear-facing child restraints in a rear
seat, even if the airbag is off. If you secure a
forward-facing child restraint in the right front seat,
always move the front passenger seat as far back
as it will go. It is better to secure the child restraint
in a rear seat.
SeePassenger Sensing System
on page 2‑85
for additional information.
2-71

If the child restraint has the LATCH system, seeLower
Anchors and Tethers for Children (LATCH)on
page 2‑59for how and where to install the child
restraint using LATCH. If a child restraint is secured
using a safety belt and it uses a top tether, see Lower
Anchors and Tethers for Children (LATCH)
on
page 2‑59for top tether anchor locations.
Do not secure a child seat in a position without a top
tether anchor if a national or local law requires that the
top tether be anchored, or if the instructions that come
with the child restraint say that the top strap must be
anchored.
In Canada, the law requires that forward-facing child
restraints have a top tether, and that the tether be
attached. You will be using the lap-shoulder belt to secure the
child restraint in this position. Follow the instructions
that came with the child restraint.
1. Move the seat as far back as it will go before securing the forward-facing child restraint.
2. Put the child restraint on the seat.
3. Pick up the latch plate, and run the lap and shoulder portions of the vehicle's safety belt
through or around the restraint. The child restraint
instructions will show you how.
2-72

6. To tighten the belt, push down on the childrestraint, 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.
7. Push and pull the child restraint in different directions to be sure it is secure. If the vehicle is equipped with the 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.
See
Passenger Airbag Status Indicator on page 4‑29.
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 2‑85for more information.
To remove the child restraint, unbuckle the vehicle
safety belt and let it return to the stowed position.
2-74

{WARNING:
Children who are up against, or very close to,
any airbag when it inflates can be seriously
injured or killed. Airbags plus lap-shoulder belts
offer protection for adults and older children, but
not for young children and infants. Neither the
vehicle's safety belt system nor its airbag system
is designed for them. Young children and infants
need the protection that a child restraint system
can provide. Always secure children properly in
your vehicle. To read how, seeOlder Children
on
page 2‑49
or Infants and Young Childrenon
page 2‑52
.
There is an airbag
readiness light on the
instrument panel cluster,
which shows the airbag
symbol.
The system checks the airbag electrical system for
malfunctions. The light tells you if there is an electrical
problem. See Airbag Readiness Light
on page 4‑28for
more information.
2-77

Driver Side shown, Passenger Side similar
If the vehicle has a third row passenger seat, the
roof-rail airbags are located in the ceiling above the
rear windows for the outboard passenger positions in
the third row.
{WARNING:
If something is between an occupant and an
airbag, the airbag might not inflate properly or it
might force the object into that person causing
severe injury or even death. The path of an
inflating airbag must be kept clear. Do not put
anything between an occupant and an airbag,
and do not attach or put anything on the steering
wheel hub or on or near any other airbag
covering.
Do not use seat accessories that block the
inflation path of a seat-mounted side impact
airbag.
Never secure anything to the roof of a vehicle
with roof-rail airbags by routing a rope or tie down
through any door or window opening. If you do,
the path of an inflating roof-rail airbag will be
blocked.
2-80

United StatesCanada
The words ON and OFF, or the symbol for on and off,
will be visible during the system check. If you are using
remote start, if equipped, to start the vehicle from a
distance, you may not see the system check. When the
system check is complete, either the word ON or OFF,
or the symbol for on or off, will be visible. See
Passenger Airbag Status Indicator on page 4‑29.
The passenger sensing system will turn off the right
front passenger frontal airbag under certain conditions.
The driver airbag, seat‐mounted side impact airbags
(if equipped) and the roof-rail airbags are not affected
by the passenger sensing system. The passenger sensing system works with sensors that
are part of the right front passenger seat and safety
belt. The sensors are designed to detect the presence
of a properly-seated occupant and determine if the right
front passenger frontal airbag should be enabled (may
inflate) or not.
According to accident statistics, children are safer when
properly secured in a rear seat in the correct child
restraint for their weight and size.
We recommend that children be secured in a rear seat,
including: an infant or a child riding in a rear-facing child
restraint; a child riding in a forward-facing child seat; an
older child riding in a booster seat; and children, who
are large enough, using safety belts.
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.
2-86

{WARNING:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger airbag inflates. This is because the
back of the rear-facing child restraint would be
very close to the inflating airbag. A child in a
forward-facing child restraint can be seriously
injured or killed if the right front passenger airbag
inflates and the passenger seat is in a forward
position.
Even if the passenger sensing system has turned
off the right front passenger frontal airbag, no
system is fail-safe. No one can guarantee that an
airbag will not deploy under some unusual
circumstance, even though the airbag is
turned off.
Secure rear-facing child restraints in a rear
seat, even if the airbag is off. If you secure a
forward-facing child restraint in the right front seat,
always move the front passenger seat as far back
as it will go. It is better to secure the child restraint
in a rear seat.The passenger sensing system is designed to turn off
the right front passenger frontal airbag if:
.The right front passenger seat is unoccupied.
.The system determines an infant is present in a
child restraint.
.A right front passenger takes his/her weight off of
the seat for a period of time.
.Or, if there is a critical problem with the airbag
system or the passenger sensing system.
When the passenger sensing system has turned off the
right front passenger frontal airbag, the off indicator will
light and stay lit to remind you that the airbag is off. See
Passenger Airbag Status Indicator on page 4‑29.
The passenger sensing system is designed to turn on
(may inflate) the right front passenger frontal airbag
anytime the system senses that a person of adult size
is sitting properly in the right front passenger seat.
When the passenger sensing system has allowed the
airbag to be enabled, the on indicator will light and stay
lit to remind you that the airbag is active.
2-87

For some children, including children in child restraints,
and for very small adults, the passenger sensing
system may or may not turn off the right front passenger
frontal airbag, depending upon the person's seating
posture and body build. Everyone in your vehicle who
has outgrown child restraints should wear a safety belt
properly—whether or not there is an airbag for that
person.
{WARNING:
If the airbag readiness light ever comes on and
stays on, it means that something may be wrong
with the airbag system. To help avoid injury to
yourself or others, have the vehicle serviced right
away. See Airbag Readiness Light
on page 4‑28
for more information, including important safety
information.
If the On Indicator is Lit for a Child
Restraint
If a child restraint has been installed and the on
indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such as
blankets, cushions, seat covers, seat heaters,
or seat massagers.
4. Reinstall the child restraint following the directions provided by the child restraint manufacturer and
refer to Securing a Child Restraint in the Right
Front Seat Position on page 2‑71.
5. If, after reinstalling the child restraint and restarting the vehicle, the on indicator is still lit, turn the
vehicle off. Then slightly recline the vehicle
seatback and adjust the seat cushion, if adjustable,
to make sure that the vehicle seatback is not
pushing the child restraint into the seat cushion.
Also make sure the child restraint is not trapped
under the vehicle head restraint. If this happens,
adjust the head restraint. See Head Restraints
on
page 2‑2.
6. Restart the vehicle. The passenger sensing system may or may not
turn off the airbag for a child in a child restraint
depending upon the child’s seating posture and
body build. It is better to secure the child restraint
in a rear seat.
2-88

Section 3 Features and Controls
Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Remote Keyless Entry (RKE) System . . . . . . . . . . . 3-4
Remote Keyless Entry (RKE) System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Doors and Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Programmable Automatic Door Locks . . . . . . . . . . 3-10
Rear Door Security Locks . . . . . . . . . . . . . . . . . . . . . 3-10
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Liftgate/Liftglass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Power Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Power Assist Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20 Theft-Deterrent Systems
. . . . . . . . . . . . . . . . . . . . . . . . .3-20
Content Theft-Deterrent . . . . . . . . . . . . . . . . . . . . . . . . 3-20
PASS-Key
®III+ Electronic Immobilizer . . . . . . . . . 3-22
PASS-Key®III+ Electronic Immobilizer
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Starting and Operating Your Vehicle . . . . . . . . . . . .3-24
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25
Retained Accessory Power (RAP) . . . . . . . . . . . . . 3-26
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Adjustable Throttle and Brake Pedal . . . . . . . . . . . 3-28
Engine Coolant Heater . . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Active Fuel Management™ . . . . . . . . . . . . . . . . . . . . 3-29
Automatic Transmission Operation . . . . . . . . . . . . . 3-30
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Shifting Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
Parking Over Things That Burn . . . . . . . . . . . . . . . . 3-39
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
Running the Vehicle While Parked . . . . . . . . . . . . . 3-41
3-1