2010 GMC YUKON DENALI ECU

When the vehicle starts, the parking lamps will turn on
and remain on as long as the engine is running. The
doors will be locked and the climate control system may
come on.
The engine will continue to run for 10 minutes. Repeat
the steps for a 10-minute time extension. Remote start
can be extended only once.
Canceling a Remote Start
To cancel a remote start:
.Aim the RKE transmitter at the vehicle and press
and hold
/until the parking lamps turn off.
.Turn on the hazard warning flashers.
.Turn the ignition on and then back off.
See Remote Vehicle Start on page 3‑7.
Door Locks
There are several ways to lock and unlock the vehicle.
From outside, use the Remote Keyless Entry (RKE)
transmitter or the key in the driver door. From inside,
use the power door locks or the manual door locks.
To lock or unlock the door with the manual locks,
push down or pull up on the manual lock knob.
Power Door Locks
If available, these switches are located on the front
doors.
K:Press to unlock the doors.
Q:Remove the key from the ignition and press to lock
the doors.
For more information, see:
.Programmable Automatic Door Lockson
page 3‑10.
.Rear Door Security Locks on page 3‑10.
1-5

Ultrasonic Parking Assist
This feature uses sensors on the rear bumper to detect
objects while parking the vehicle. It operates at speeds
less than 8 km/h (5 mph). URPA uses audio beeps to
provide distance and system information.
Keep the sensors on the vehicle's rear bumper clean to
ensure proper operation.
The system can be disabled by pressing the rear park
aid disable button located next to the radio.
SeeUltrasonic Rear Parking Assist (URPA)
on
page 3‑45for more information.
Power Outlets
Accessory power outlets can be used to connect
auxiliary electrical equipment, such as a cellular
telephone.
There are two under the climate controls, one inside the
center floor console, one on the rear of the center floor
console and one accessory power outlet in the rear
cargo area on the passenger side. The accessory power outlets are powered, even with
the ignition off. Continuing to use accessory power
outlets while the ignition is in LOCK/OFF may cause
the vehicle's battery to run down.
Universal Remote System
The Universal Home Remote System allows for garage
door openers, security systems, and home automation
devices to be programmed to work with these buttons in
the vehicle.
See
Universal Home Remote System
on page 3‑55.
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OnStar®
OnStar®uses several innovative technologies and live
advisors to provide a wide range of safety, security,
navigation, diagnostics, and calling services.
Automatic Crash Response
In a crash, built in sensors can automatically alert an
OnStar advisor who is immediately connected to the
vehicle to see if you need help.
How OnStar Service Works
Q
: This blue button connects you to a specially
trained OnStar advisor to verify your account
information and to answer questions.
]: Push this red emergency button to get priority help
from specially trained OnStar emergency advisors.
X: Push this button for hands‐free, voice‐activated
calling and to give voice commands for turn‐by‐turn
navigation. Crisis Assist, Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock, Roadside
Assistance, Turn‐by‐Turn Navigation and Hands‐Free
Calling are available on most vehicles. Not all OnStar
services are available on all vehicles. For more
information see the OnStar Owner's Guide or visit
www.onstar.com (U.S.) or www.onstar.ca (Canada),
contact OnStar at 1-888-4-ONSTAR (1‐888‐466‐7827)
or TTY 1‐877‐248‐2080, or press
Qto speak with an
OnStar advisor 24 hours a day, 7 days a week.
For a full description of OnStar services and system
limitations, see the OnStar Owner's Guide in the
glove box.
OnStar service is subject to the OnStar terms and
conditions included in the OnStar Subscriber
Information.
OnStar service cannot work unless the vehicle is in a
place where OnStar has an agreement with a wireless
service provider for service in that area. OnStar service
also cannot work unless the vehicle is in a place where
the wireless service provider OnStar has hired for that
area has coverage, network capacity and reception
when the service is needed, and technology that is
compatible with the OnStar service. Not all services are
available everywhere, particularly in remote or enclosed
areas, or at all times.
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Section 2 Seats and Restraint System
Head Restraints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Power Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Power Lumbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Heated and Cooled Seats . . . . . . . . . . . . . . . . . . . . . . . 2-5
Memory Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Power Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 2-7
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
60/40 Split Bench Seat . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Bucket Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Third Row Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Safety Belts: They Are for Everyone . . . . . . . . . . . 2-26
How to Wear Safety Belts Properly . . . . . . . . . . . . 2-31
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
Safety Belt Use During Pregnancy . . . . . . . . . . . . . 2-47
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Safety Belt Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
Child Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Older Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Infants and Young Children . . . . . . . . . . . . . . . . . . . . 2-52
Child Restraint Systems . . . . . . . . . . . . . . . . . . . . . . . 2-55 Where to Put the Restraint . . . . . . . . . . . . . . . . . . . . . 2-58
Lower Anchors and Tethers for Children
(LATCH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Securing a Child Restraint in a Rear Seat Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-67
Securing a Child Restraint in the Center Front Seat Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70
Securing a Child Restraint in the Right Front Seat Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-71
Airbag System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-75
Where Are the Airbags? . . . . . . . . . . . . . . . . . . . . . . . 2-78
When Should an Airbag Inflate? . . . . . . . . . . . . . . . 2-81
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . 2-83
How Does an Airbag Restrain? . . . . . . . . . . . . . . . . 2-83
What Will You See After an Airbag Inflates? . . . 2-84
Passenger Sensing System . . . . . . . . . . . . . . . . . . . 2-85
Servicing Your Airbag-Equipped Vehicle . . . . . . . 2-91
Adding Equipment to Your Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-91
Restraint System Check . . . . . . . . . . . . . . . . . . . . . . . . .2-93
Checking the Restraint Systems . . . . . . . . . . . . . . . 2-93
Replacing Restraint System Parts After a Crash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-94
2-1

3. Unlatch the seat fromthe floor by pulling
the carrying handle,
located at the rear of
the seat, rearward.
4. Roll the seat out of the vehicle. There is a track in the floor to guide the seat wheels out of the
vehicle.
Installing the Third Row Seat
To install the seat, do the following:
1. Open the liftgate to access the rear of the vehicle.
2. Slide the front outboard seat wheels into the track on the floor and roll the seat forward. The front
latches should lock into place. If the latches do not
lock, try tilting the rear of the seat upward slightly. 3. Lower the rear of the seat and push down on the
seat to engage the rear floor latches.
{WARNING:
A seat that is not locked into place properly can
move around in a collision or sudden stop. People
in the vehicle could be injured. Be sure to lock the
seat into place properly when installing it.
4. Push and pull on the seat to make sure it is locked into place. The seatback cannot be raised to the
upright position unless the seat is secured to the
floor.
5. Pull up on the seatback until it locks into the upright position.
2-25

If the shoulder portion of a passenger belt with a
free‐falling latch plate is pulled out all the way, the
child restraint locking feature may be engaged.
If this happens, let the belt go back all the way and
start again.
Engaging the child restraint locking feature in the
right front seating position may affect the
passenger sensing system, if equipped. See
Passenger Sensing System
on page 2‑85for
more information.
If the belt stops before it reaches the buckle, for
lap‐shoulder belts with cinching latch plates, tilt the
latch plate and keep pulling the safety belt until it
can be buckled.
3. Push the latch plate into the buckle until it clicks. If you find that the latch plate will not go fully into
the buckle, see if you are using the correct buckle.
Pull up on the latch plate to make sure it is secure.
If the belt is not long enough, see Safety Belt
Extender
on page 2‑48.
Position the release button on the buckle so that
the safety belt could be quickly unbuckled if
necessary.
2-41

To make the belt shorter, pull its free end as shown until
the belt is snug.
If the belt is not long enough, seeSafety Belt Extender
on page 2‑48.
Make sure the release button on the buckle is
positioned so you would be able to unbuckle the safety
belt quickly if necessary.
If you find that the latch plate will not go fully into the
buckle, see if you are using the correct buckle. Be sure
that the latch plate clicks when inserted into the buckle.
Safety Belt Extender
If the vehicle's safety belt will fasten around you, you
should use it.
But if a safety belt is not long enough, your dealer/
retailer will order you an extender. When you go in to
order it, take the heaviest coat you will wear, so the
extender will be long enough for you. To help avoid
personal injury, do not let someone else use it, and use
it only for the seat it is made to fit. The extender has
been designed for adults. Never use it for securing child
seats. To wear it, attach it to the regular safety belt. For
more information, see the instruction sheet that comes
with the extender.
2-48

Infants and Young Children
Everyone in a vehicle needs protection! This includes
infants and all other children. Neither the distance
traveled nor the age and size of the traveler changes
the need, for everyone, to use safety restraints. In fact,
the law in every state in the United States and in every
Canadian province says children up to some age must
be restrained while in a vehicle.
{WARNING:
Children can be seriously injured or strangled if a
shoulder belt is wrapped around their neck and
the safety belt continues to tighten. Never leave
children unattended in a vehicle and never allow
children to play with the safety belts.
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. Every time infants
and young children ride in vehicles, they should have
the protection provided by appropriate child restraints. Children who are not restrained properly can strike
other people, or can be thrown out of the vehicle.
{WARNING:
Never do this.
Never hold an infant or a child while riding in a
vehicle. Due to crash forces, an infant or a child
will become so heavy it is not possible to hold it
during a crash. For example, in a crash at only
40 km/h (25 mph), a 5.5 kg (12 lb) infant will
suddenly become a 110 kg (240 lb) force on a
person's arms. An infant should be secured in
an appropriate restraint.
2-52