2007 GMC YUKON XL brake

Memory Seat, Mirrors, and Pedals
Your vehicle may have the memory package.
The controls for this
feature are located on
the driver’s door
panel, and are used to
program and recall
memory settings for the
driver’s seat, outside
mirrors, and the
adjustable throttle and
brake pedal feature
if your vehicle has it.
To save your positions in memory, do the following:
1. Adjust the driver’s seat, including the
seatback recliner and lumbar, both outside
mirrors, and the throttle and brake pedals to a
comfortable position.
SeeOutside Power Mirrors on page 164and
Adjustable Throttle and Brake Pedal on
page 140for more information.
Some mirrors might not function with the
memory feature.2. Press and hold button 1 until two beeps
sound through the driver’s front speaker
to let you know that the position has been
stored.
A second seating, mirror, and throttle and brake
pedal position can be programmed by repeating
the above steps and pressing button 2.
To recall the memory positions, the vehicle must
be in PARK (P). Press and release either button 1
or button 2 corresponding to the desired driving
position. The seat, outside mirrors, and adjustable
throttle and brake pedals will move to the position
previously stored. You will hear a single beep.
If you use the remote keyless entry transmitter to
enter your vehicle and the remote recall memory
feature is on, automatic seat, mirror, and
adjustable pedal movement will occur. See
“MEMORY SEAT RECALL” underDIC Vehicle
Customization (With DIC Buttons) on page 264
for more information.
To stop recall movement of the memory feature at
any time, press one of the power seat controls,
memory buttons, power mirror buttons, or
adjustable pedal switch.
13

Keys.............................................................111
Remote Keyless Entry System.....................112
Remote Keyless Entry System Operation......113
Doors and Locks.........................................120
Door Locks................................................120
Power Door Locks......................................121
Delayed Locking.........................................121
Programmable Automatic Door Locks.........121
Rear Door Security Locks..........................122
Lockout Protection......................................122
Liftgate/Liftglass..........................................123
Power Liftgate............................................125
Power Running Boards...............................129
Windows......................................................130
Power Windows.........................................131
Sun Visors.................................................132
Theft-Deterrent Systems..............................132
Content Theft-Deterrent..............................132
PASS-Key
®III+..........................................134
PASS-Key®III+ Operation..........................134
Starting and Operating Your Vehicle..........136
New Vehicle Break-In.................................136
Ignition Positions........................................137Retained Accessory Power (RAP)..............138
Starting the Engine.....................................138
Adjustable Throttle and Brake Pedal...........140
Engine Coolant Heater...............................140
Displacement on Demand™ (DoD™)..........141
Automatic Transmission Operation..............142
Tow/Haul Mode..........................................145
Four-Wheel Drive.......................................146
Parking Brake............................................151
Shifting Into Park (P)..................................152
Shifting Out of Park (P)..............................154
Parking Over Things That Burn..................154
Engine Exhaust..........................................155
Running the Engine While Parked..............156
Mirrors..........................................................157
Automatic Dimming Rearview Mirror with
OnStar
®, Compass and Temperature
Display....................................................157
Automatic Dimming Rearview Mirror with
Compass and Temperature Display.........160
Outside Manual Mirrors..............................163
Outside Trailer-Tow Mirrors........................163
Outside Power Mirrors................................164
Section 2 Features and Controls
109

Starting and Operating Your
Vehicle
New Vehicle Break-In
Notice:Your vehicle does not need an
elaborate break-in. But it will perform better in
the long run if you follow these guidelines:
Keep your speed at 55 mph (88 km/h)
or less for the rst 500 miles (805 km).
Do not drive at any one constant speed,
fast or slow, for the rst 500 miles
(805 km). Do not make full-throttle starts.
Avoid downshifting to brake, or slow,
the vehicle.
Avoid making hard stops for the rst
200 miles (322 km) or so. During this time
your new brake linings are not yet broken
in. Hard stops with new linings can mean
premature wear and earlier replacement.
Follow this breaking-in guideline every time
you get new brake linings.
Do not tow a trailer during break-in. See
Towing a Trailer on page 405for the trailer
towing capabilities of your vehicle and more
information.
Following break-in, engine speed and load can
be gradually increased.
136

Adjustable Throttle and Brake Pedal
If your vehicle has this feature, you can change
the position of the throttle and brake pedals.
The switch used to
adjust the pedals is
located on the center
console below the
climate control system.
Press the arrow at the bottom of the switch to
move the pedals closer to your body. Press
the arrow at the top of the switch to move the
pedals away from your body.
This feature is designed for shorter drivers, since
the pedals can not move farther away from
the standard position, but can move toward the
driver for better pedal reach.No adjustment to the pedals can be made when
the vehicle is in REVERSE (R) or while using
the cruise control.
Your vehicle may have a memory function which
allows pedal settings to be saved and recalled.
SeeMemory Seat, Mirrors, and Pedals on
page 13for more information.
Engine Coolant Heater
Your vehicle may have an engine coolant heater.
In very cold weather, 0°F (−18°C) or colder,
the engine coolant heater can help. You will get
easier starting and better fuel economy during
engine warm-up.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle.
At temperatures above 32°F (0°C), use of the
coolant heater is not required. Your vehicle may
also have an internal thermostat in the plug end of
the cord. This will prevent operation of the engine
coolant heater when the temperature is at or above
0°F (−18°C) as noted on the cord.
140

Automatic Transmission Operation
There are several different positions for the
shift lever.
Your vehicle has an automatic transmission with
an electronic shift position indicator within the
instrument panel cluster. This display will show the
position anytime the shift lever is moved out of
PARK (P).
PARK (P):This position locks your rear wheels. It
is the best position to use when you start your
engine because your vehicle cannot move easily.{CAUTION:
It is dangerous to get out of your vehicle
if the shift lever is not fully in PARK (P)
with the parking brake rmly set. Your
vehicle can roll.
Do not leave your vehicle when the engine
is running unless you have to. If you have
left the engine running, the vehicle can
move suddenly. You or others could be
injured. To be sure your vehicle will not
move, even when you are on fairly level
ground, always set your parking brake
and move the shift lever to PARK (P).
SeeShifting Into Park (P) on page 152.If
you are pulling a trailer, seeTowing a
Trailer on page 405.
142

{CAUTION:
If you have four-wheel drive, your vehicle
will be free to roll — even if your shift
lever is in PARK (P) — if your transfer
case is in NEUTRAL. So, be sure the
transfer case is in a drive gear, two-wheel
high, four-wheel high or four-wheel
low — not in NEUTRAL. SeeShifting Into
Park (P) on page 152.
REVERSE (R):Use this gear to back up.
Notice:Shifting to REVERSE (R) while your
vehicle is moving forward could damage the
transmission. The repairs would not be covered
by your warranty. Shift to REVERSE (R) only
after your vehicle is stopped.
To rock your vehicle back and forth to get out of
snow, ice, or sand without damaging your
transmission, seeIf Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow on page 388.NEUTRAL (N):In this position, your engine does
not connect with the wheels. To restart when
you are already moving, use NEUTRAL (N) only.
Also, use NEUTRAL (N) when your two-wheel
drive vehicle is being towed.
{CAUTION:
Shifting into a drive gear while your
engine is running at high speed is
dangerous. Unless your foot is rmly on
the brake pedal, your vehicle could move
very rapidly. You could lose control and
hit people or objects. Do not shift into a
drive gear while your engine is running at
high speed.
Notice:Shifting out of PARK (P) or
NEUTRAL (N) with the engine running at high
speed may damage the transmission. The
repairs would not be covered by your warranty.
Be sure the engine is not running at high
speed when shifting your vehicle.
143

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 (56 km/h),
push your accelerator pedal about
halfway down.
Going about 35 mph (56 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 THIRD (3) or, if necessary, 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 355
THIRD (3):This position is also used for normal
driving. However, it reduces vehicle speed
more than DRIVE (D) without using your brakes.
You can use THIRD (3) on hills. It can help control
your speed as you go down steep mountain
roads, but then you would also want to use your
brakes off and on.SECOND (2):This position reduces vehicle speed
even more than THIRD (3) without using your
brakes. You can use SECOND (2) on hills. It can
help control your speed as you go down steep
mountain roads, but then you would also want to
use your brakes off and on.
If you select SECOND (2) and the Tow/Haul has
not been selected, the transmission will drive
in SECOND (2) gear. You may use this feature for
reducing the speed of the rear wheels when
you are trying to start your vehicle from a stop on
slippery road surfaces.
If you select SECOND (2) and the Tow/Haul has
also been selected, the transmission operation will
be limited to FIRST (1) and SECOND (2) gears.
You may use this feature for reducing the speed of
the rear wheels when you are trying to start
your vehicle from a stop on slippery road surfaces.
FIRST (1):This position reduces vehicle speed
even more than SECOND (2) without using
your brakes. You can use it on very steep hills, or
in deep snow or mud. If the shift lever is put in
FIRST (1) while the vehicle is moving forward, the
transmission will not shift into rst gear until the
vehicle is going slowly enough.
144

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.
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.
The transmission torque converter clutch operation
is restricted during cold operation. When the
startup transmission temperature is approximately
64°F (18° C) your torque converter clutch will
temporarily not operate. Once the transmission
temperature rises above 68° F (20° C), normal
operation will resume.Tow/Haul Mode
Your vehicle has a Tow/Haul mode. The selector
button is located on the end of the column
shift lever. You can use this feature to assist when
towing or hauling a heavy load or if there is a
need to charge a battery installed in a trailer.
SeeTowing a Trailer on page 405for more
information.
145