2007 GMC YUKON DENALI V4 mode

How Does an Airbag Restrain?
In moderate to severe frontal or near frontal
collisions, even belted occupants can contact
the steering wheel or the instrument panel.
In moderate to severe side collisions, even belted
occupants can contact the inside of the vehicle.
The airbag supplements the protection provided by
safety belts. Airbags distribute the force of the
impact more evenly over the occupant’s upper
body, stopping the occupant more gradually. But
the frontal airbags would not help you in many
types of collisions, including rollovers, rear
impacts, and many side impacts, primarily because
an occupant’s motion is not toward the airbag.Roof-mounted rollover airbags would not help
you in many types of collisions, including many
frontal or near frontal collisions, and rear impacts,
primarily because an occupant’s motion is not
toward the airbag. Airbags 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 for the
driver’s and right front passenger’s frontal airbags,
and only in moderate to severe side collisions
for roof-mounted rollover airbags.
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Keys............................................................ 113
Remote Keyless Entry System.................. 114
Remote Keyless Entry System Operation ... 116
Doors and Locks........................................ 122
Door Locks................................................ 122
Power Door Locks..................................... 123
Delayed Locking........................................ 123
Programmable Automatic Door Locks........ 124
Rear Door Security Locks......................... 124
Lockout Protection..................................... 125
Liftgate/Liftglass......................................... 126
Power Liftgate........................................... 128
Power Running Boards.............................. 132
Windows...................................................... 132
Power Windows........................................ 133
Sun Visors................................................ 134
Theft-Deterrent Systems............................. 134
Content Theft-Deterrent............................. 135
PASS-Key
®III+......................................... 136
PASS-Key®III+ Operation......................... 137Starting and Operating Your Vehicle......... 139
New Vehicle Break-In................................ 139
Ignition Positions....................................... 140
Retained Accessory Power (RAP)............. 141
Starting the Engine.................................... 141
Adjustable Throttle and Brake Pedal.......... 143
Engine Coolant Heater.............................. 144
Automatic Transmission Operation............. 145
Tow/Haul Mode......................................... 150
Parking Brake........................................... 152
Shifting Into Park (P)................................. 153
Shifting Out of Park (P)............................. 154
Parking Over Things That Burn................. 155
Engine Exhaust......................................... 156
Running the Engine While Parked............. 157
Mirrors......................................................... 158
Automatic Dimming Rearview Mirror with
OnStar
®, Compass and Temperature
Display................................................... 158
Outside Power Foldaway Mirrors............... 161
Section 2 Features and Controls
111

To replace the battery in the RKE transmitter do
the following:
1. Use a at object with a thin edge into the
notch, located below the trunk release
button, and separate the bottom half from
the top half of the transmitter.
2. Remove the old battery, but do not use a
metal object to do this.
3. Slide the new battery into the transmitter with
the positive side of the battery facing down.
Use a type CR2032 battery, or equivalent
type. Make sure the cover is on tightly,
so water will not get in.
4. Snap the front and the back of the transmitter
together.
5. Test the operation of the transmitter with the
vehicle.
Remote Vehicle Start
Your vehicle may have a remote starting feature.
This feature allows you to start the engine from
outside of the vehicle. It may also start up the
vehicle’s heating or air conditioning systems and
rear window defogger. Normal operation of the
system will return after the key is turned to the
RUN position.If your vehicle has an automatic climate control
system, during remote start, the climate control
system will default to a heating mode during colder
outside temperatures and a cooling mode during
warmer outside temperatures. If your vehicle
does not have an automatic climate control
system, during remote start the climate control
system will turn on at the setting the vehicle was
set to when the vehicle was last turned off.
Laws in some communities may restrict the use of
remote starters. For example, some laws may
require a person using the remote start to have
the vehicle in view when doing so. Check
local regulations for any requirements on remote
starting of vehicles.
Do not use the remote start feature if your vehicle
is low on fuel. Your vehicle may run out of fuel.
The RKE transmitter with the remote start button,
provides an increased range of operation. However,
the range may be less while the vehicle is running.
As a result, you may need to be closer to your
vehicle to turn it off, than you were to turn it on.
There are other conditions which can affect the
performance of the transmitter, seeRemote
Keyless Entry System on page 114for additional
information.
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Liftgate/Liftglass
{CAUTION:
It can be dangerous to drive with the
liftglass or liftgate open because carbon
monoxide (CO) gas can come into your
vehicle. You cannot see or smell CO.
It can cause unconsciousness and
even death.
If you must drive with the liftglass or
liftgate open, or if electrical wiring or
other cable connections must pass
through the seal between the body and
the liftglass or liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or
cooling system to its highest speed
with the recirculation mode off. That
will force outside air into your vehicle.
SeeDual Automatic Climate Control
System on page 214.
CAUTION: (Continued)
CAUTION: (Continued)

If you have air outlets on or under
the instrument panel, open them all
the way.
If your vehicle is equipped with a
power liftgate, disable the power
liftgate function.
SeeEngine Exhaust on page 156.
SeePower Liftgate on page 128for more
information on how to use the power liftgate.
To unlock the liftgate, use the power door lock
switch or press the door unlock button on
the Remote Keyless Entry (RKE) transmitter twice.
SeeRemote Keyless Entry System Operation
on page 116.
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When driving with the liftgate open, the power
liftgate should be switched to manual liftgate
operation — the overhead console switch set to
the “Disable” position.
Both the liftglass and liftgate have an electric
latch. If the battery is disconnected or has
low voltage, the liftglass and liftgate will not open.
The liftglass and liftgate will resume operation
when the battery is reconnected and charged.
If the battery is properly connected and has
adequate voltage, and the liftgate or liftglass still
will not function, your vehicle should be taken to a
dealership for service.
{CAUTION:
It can be dangerous to drive with the
liftglass or liftgate open because carbon
monoxide (CO) gas can come into your
vehicle. You cannot see or smell CO. It
can cause unconsciousness and even
death.
CAUTION: (Continued)
CAUTION: (Continued)
If you must drive with the liftglass or
liftgate open, or if electrical wiring or
other cable connections must pass
through the seal between the body and
the liftglass or liftgate:
Make sure all other windows are shut.
Turn the fan on your heating or
cooling system to its highest speed
with the recirculation mode off. That
will force outside air into your vehicle.
SeeDual Automatic Climate Control
System on page 214.
If you have air outlets on or under
the instrument panel, open them all
the way.
If your vehicle is equipped with a
power liftgate, disable the power
liftgate function.
SeeEngine Exhaust on page 156.
Do not drive with the liftgate open if at all possible.
131

Express-Down Windows
The driver and front passenger windows have an
express-down feature that allows the windows to be
lowered without holding the switch. Press down
fully on the window switch, then release, to activate
the express-down mode. The express-down mode
can be canceled at any time by pulling up on the
switch.
Window Lockout
o
(Window Lockout):The window lockout
switch is located with the power window switches
on the driver’s door armrest. This feature
prevents the rear passenger windows from
operating, except from the driver’s position. Press
the switch to turn on the lockout feature. An
indicator light will come on to show the lockout
feature is on. To turn the feature off, press
the switch again and the indicator light will go off.
Sun Visors
Pull the sun visor down to block glare. Detach the
sun visor from the center mount and slide it
along the rod from side-to-side to cover the driver
or passenger side of the front window. Swing
the sun visor to the side to cover the side window.
It can be moved along the rod from side-to-side
in this position also.
Lighted Visor Vanity Mirror
Your vehicle has lighted visor vanity mirrors on
both the driver’s and passenger’s sun visors. Pull
the sun visor down and lift the mirror cover to
turn the lamps on.
Theft-Deterrent Systems
Vehicle theft is big business, especially in some
cities. Although your vehicle has a number of
theft-deterrent features, we know that nothing we
put on it can make it impossible to steal.
134

DRIVE (D):This position is for normal driving. It
provides the best fuel economy for your vehicle.
If you need more power for passing, and you are:
Going less than about 35 mph (55 km/h), push
your accelerator pedal about halfway down.
Going about 35 mph (55 km/h) or more, push
the accelerator all the way down.
Drive (D) can be used when towing a trailer,
carrying a heavy load, driving on steep hills,
or for off-road driving. You may want to shift the
transmission to a lower gear selection if the
transmission shifts too often.
Downshifting the transmission in slippery road
conditions could result in skidding, see Skidding
underLoss of Control on page 357.
When temperatures are very cold, the
Hydra-Matic
®Automatic Transmission’s gear
shifting may be delayed providing more stable
shifts until the engine warms up. Shifts may
be more noticeable with a cold transmission.
This difference in shifting is normal.MANUAL MODE (M):This position lets drivers
select the range of gears appropriate for current
driving conditions. If your vehicle has this feature,
see “Driver Shift Control” later in this section.
Notice:Spinning the tires or holding the
vehicle in one place on a hill using only
the accelerator pedal may damage the
transmission. If you are stuck, do not spin
the tires. When stopping on a hill, use
the brakes to hold the vehicle in place.
Your vehicle has a shift stabilization feature that
adjusts the transmission shifting to the current
driving conditions in order to reduce rapid upshifts
and downshifts. This shift stabilization feature is
designed to determine, before making an upshift,
if the engine will be able to maintain vehicle
speed by analyzing things such as throttle position,
vehicle load, and hill grade. If the shift stabilization
feature determines that a current vehicle speed
cannot be maintained, the transmission does
not upshift and instead holds the current gear.
In some cases, this may appear to be a delayed
shift, however the transmission is operating
normally.
148

Your vehicle’s transmission uses adaptive shift
controls. Adaptive shift controls continually
compares key shift parameters to pre programmed
ideal shift conditions stored in the transmissions
computer. The transmission constantly makes
adjustments to improve vehicle performance
according to the way the vehicle is being used,
such as with a heavy load. During this adaptive
shift controls process, some shifts may feel
different as the transmission determines the best
settings for a particular shift.Driver Shift Control (DSC)
Your vehicle has a Driver Shift Control (DSC).
The DSC controls the vehicle’s transmission.
To use this feature, do the following:
1. Move the shift lever to the MANUAL
MODE (M).
2. Press the plus/minus button, to upshift or
downshift selecting the desired range of
gears for your current driving conditions.
149