lock GMC YUKON DENALI 2003 Service Manual

Torque Lock
If you are parking on a hill and you don’t shift your
vehicle into PARK (P) properly, the weight of the vehicle
may put
too much force on the parking pawl in the
transmission. You may find it difficult
to pull the shift
lever
out of PARK (P). This is called torque lock.
To prevent torque lock, set the parking brake and then
shift into PARK (P) properly before you leave the
driver’s seat. To find
out how, see Shifting lnto Park (P)
on page 2-26.
When you are ready to drive, move the shift lever out of
PARK (P) before you release the parking brake.
If torque lock does occur, you may need
to have another
vehicle push yours a little uphill
to take some of the
pressure from the parking pawl in the transmission,
so
you can pull the shift lever out of PARK (P).
Shifting Out of Park (P)
Your vehicle has an automatic transmission shift lock
control system. You have
to fully apply your regular
brakes before you can shift from PARK (P) when the
ignition is in RUN. See Automatic Transmission
Operation
on page 2-22.
If you cannot shift out of PARK (P), ease pressure on
the shift lever and push the shift lever all the way up into
PARK (P) as you maintain brake application. Then,
move the shift lever into the gear you want.
If you ever hold the brake pedal down but still can’t shift
out of PARK (P), try this:
1. Turn the key to LOCK.
2. Apply and hold the brake until the end of Step 4.
3. Shift the vehicle to NEUTRAL (N).
4. Start the vehicle and then shift to the drive gear
you want.
5. Have the system fixed as soon as you can.
2-28

Mirrors
Automatic Dimming Rearview Mirror
with Onstar@, Compass
and
Temperature Display
Your vehicle may have this feature. When on, an
electrochromic mirror automatically dims to the proper
level to minimize glare from lights behind you after dark.
The mirror also includes a duel display in the upper
right corner of the mirror face. The compass reading and
the outside temperature will both appear in the display
at the same time.
Temperature and Compass Display
Press the on/off button, located to the far left, briefly to
turn the comp/temp display on or
off.
If the display reads CAL, you will need to calibrate the
compass. For more information on calibration, see
below.
To adjust between Fahrenheit and Celsius do the
following:
1.
2. Press and hold the
on/off button for approximately
four seconds until either a flashing OF, or "C
appears.
Press the button again to change the display to the
desired unit
of measurement. After approximately
four seconds of inactivity, the new unit will be locked
in and the compass/temperature display will
return.
6 (On/Off): This is the on/off button.
2-31

3. Keep pressing the on/off button until the desired
zone number appears in the display. Release the
button. After approximately four seconds of
inactivity, the new zone number will be locked in
and the comphemp display will return.
4. Calibrate the compass as described below.
Compass Calibration
The compass may need calibration if one of the
following occurs:
After approximately five seconds, the display does
not show a compass heading
(N for North, for
example), there may be a strong magnetic field
interfering with the compass. Such interference may
be caused by a magnetic antenna mount, magnetic
note pad holder or a similar magnetic item.
The compass does not display the correct heading
and the compass zone variance is set correctly. In
order
to calibrate, CAL must be displayed in the
mirror compass windows. If CAL is not displayed, push
the on/off button for approximately
12 seconds or
until CAL is displayed.
The compass can be calibrated by drivingthe vehicle in
circles at
5 mph (8 km/h) or less until the display
reads a direction.
Passenger Air Bag Indicator
Your vehicle may be equipped with a passenger air bag
indicator, on the mirror glass, just above the buttons.
If your vehicle has this feature, the mirror will display the
word
ON, or an air bag symbol in Canada, when the
passenger air bag is enabled. For more information, see
Passenger Sensing System on page
1-8 1.
Cleaning the Mirror
When cleaning the mirror, use a paper towel or similar
material dampened with glass cleaner.
Do not spray
glass cleaner directly on the mirror as that may cause
the liquid cleaner
to enter the mirror housing.
2-33

Onstar@ System Onstar@ Services
Onstar@ provides a number of service plans to closely
meet your needs. Some of the services currently
provided by Onstar@ are:
I Automatic Notification of Air Bag Deployment
Onstar@ uses global positioning system (GPS) satellite
technology, wireless communications, and state of
the art call centers
to provide you with a wide range of
safety, security, information and convenience services.
An Onstar@ subscription plan is included in the price
of your vehicle. You can easily upgrade
or extend your
Onstar@ services
to meet your personal needs.
A complete Onstar@ user’s guide and the terms and
conditions
of the Onstar@ Subscription Service
Agreement are included in your Onstar@-equipped
vehicle’s glove box literature. For more information, visit
www.onstar.com, contact Onstar@ at
1 -888-4-ONSTAR
(1 -888-466-7827), or press the blue Onstar@ button
to speak to an Onstar@ advisor 24 hours a day, 7 days
a week.
Emergency Services
Roadside Assistance Stolen Vehicle Tracking
AccidentAssist
Remote Door Unlock
Remote Diagnostics
Onstar@ MED-NET (Requires separate activation
Online and Personal Concierge Services
and annual fee
on some plans)
Route Support
RideAssist
Information and Convenience Services
2-36

HomeLink@ Transmitter
HomeLink@, a combined universal transmitter and
receiver, provides a way to replace up to three
hand-held transmitters used to activate devices such as
gate operators, garage door openers, entry door locks, security systems and home lighting. Additional
HomeLink@ information can be found
on the internet at
www.homelink.com or by calling
1-800-355-351 5.
If your vehicle is equipped with the HomeLink@
Transmitter, it complies with Part
15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation. This device complies
with
RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference, including
interference that may cause undesired operation of the
device.
Changes and modifications to this system by other than
an authorized service facility could void authorization
to use this equipment.
Programming the HomeLink@
Transmitter
Do not use the HomeLink@ Transmitter with any garage
door opener that does not have the “stop and reverse”
feature. This includes any garage door opener model
manufactured before April
1, 1982.
Keep the original transmitter for use in other vehicles as
well as for future HomeLink@ programming. It is also
recommended that upon the sale of the vehicle,
the programmed HomeLink@ buttons should be erased
for security purposes. Refer to “Erasing HomeLink@
Buttons” or, for assistance, contact HomeLink@ on the
internet at: www.homelink.com or by calling
1-800-355-351 5.
2-38

Don’t exceed the maximum vehicle capacity when
loading your vehicle. For more information on vehicle
capacity and loading, see Loading
Your Vehicle on
page
4-44.
To prevent damage or loss of cargo as you’re leaving,
check now and then to make sure the luggage and
cargo are still securely fastened.
Be sure the cargo
is properly loaded.
If small heavy objects are placed on the roof, place
the load in the area over the rear wheels (behind
the rear side door on Yukon
XL Denali models).
If you need to, cut a piece
of 3/8 inch plywood to fit
inside the crossrails and siderails to spread the
load.
If plywood is used, tie it to the siderail
supports.
0 Tie the load to the crossrails or the siderail supports.
Use the crossrails only to keep the load from
sliding. To move the crossrails, pull out on the latch
release handle at each end. Slide the crossrail to
the desired position balancing the force side to side.
Push the release handle back into the latched
position and slide the crossrail back and forth
slightly to be sure the latch snaps securely
into place.
If you need to carry long items, move the crossrails
as far apart as they will go. Tie the load to the
crossrails and the siderails or siderail supports. Also
tie the load
to the bumpers. Do not tie the load
so tightly that the crossrails or sideraiis are
damaged.
front crossrail approximately 18 to
24 inches
(46 to 58 cm) rearward
of the front supports.
For the purpose of wind noise reduction, locate the
0 After moving a crossrail, be sure it is securely
locked into the siderail.
Your vehicle has a Center High-Mounted Stoplamp
(CHMSL) located above the rear glass.
If items are loaded on the roof of the vehicle, care
should be taken not to block or damage the CHMSL unit.
2-43

Car?? Cover
An improperly storc cargo cover COL., be
thrown about the vehicle during a collision or
sudden maneuver. You or others could be
injured.
If you remove the cover, always store
it in the proper storage location. When you put
it back, always be sure that is securely
reattached.
If you have a cargo cover, you can use it to cover items
in the cargo area of your vehicle.
To use the cover, do the following:
1. Pull the cover handle toward the rear of the vehicle.
2. Latch the cover posts into the retaining sockets
on the cargo area trim panels.
To return the cover to the retracted position, do the
following:
1. Pull up on the cover handle to release the cover
2. Let the cover move forward to the full retracted
posts
from the retaining sockets.
position. To remove the cover from the vehicle, do
the following:
1. Let the cover go all the way into the holder.
2. Then, grasping the passenger’s side cover endcap,
push the cover endcap toward the driver’s side of
the vehicle. The endcap should lock in the
compressed position.
cover rearward and take it out
of the vehicle.
3. Lift the cover up on the passenger’s side, swing the
To put the cover in the vehicle, do the following:
1. Make sure the cover slot in the holder faces
rearward with the round surface facing down.
2. Then, hold the cover at an angle and place the
cover holder tab into the
slot in the driver’s side
trim panel.
3. Move the other end of the cover forward and hold it
next
to the passenger’s side trim panel slot.
4. Push the button on top of the passenger’s side
endcap. This will allow the cover to extend into
the trim
slot.
5. Lightly pull on the cover holder to make sure it is
secure. On some models there are two
slots. The
slots furthest forward allow the cover to be used
if the third seat is removed or folded down.
2-45

Sunroof
Your vehicle may be equipped with a power sliding
sunroof. To open or close your sunroof, the ignition
needs
to be on or RAP needs to be active. See
“Retained Accessory Power” under Ignition Positions on
page 2- 18.
Press and release the rear side of the button located in
the front overhead console to express-open the glass
panel and sunshade.
To close the glass panel,
press and hold the front of the button. The glass will not
be fully seated unless the button is held until the glass stops moving.
With the sunroof closed, press the
forward side of the button to open the sunroof
to the
vent position.
The sunroof
is also equipped with a sunshade which
you can pull forward to block sun rays.
If a hand, arm, or other object is blocking the sunroof
glass panel as
it is closing, the glass panel will stop
at the obstruction. After the obstruction
is removed, the
glass panel can be closed or opened.
Use care not to leave the sunroof open for long periods
of time as debris may collect in the tracks.
If the battery has been recharged, disconnected or is
not working, you may need to reprogram the sunroof.
To do this, start the vehicle and press the forward
side of the sunroof button until the glass panel moves
to
a fully closed position. Release, and press again to
move to the vent position which occurs when the sunroof
is fully tilted rearward. This will reset the memory and
enable the sunroof to function properly.
2-46

Vehicle Personalization
Memory Seat
If your vehicle has this
feature, then the controls
for the memory function
are located on the driver’s
door.
These buttons are used
to program and recall memory
settings for the driver’s seat, throttle and brake
pedals, both the driver’s and passenger’s outside mirror,
and the radio station presets. The settings for these
features can be personalized for both driver
1 and
driver
2. Driver 1 or driver 2 corresponds to the memory
buttons labeled
1 and 2 on the driver’s door and the
numbers on the back of the remote keyless entry
transmitters. To store your memory seat, throttle and brake pedals,
mirrors and radio presets, do the following:
1. Adjust the driver’s seat (including the seatback
recliner, lumbar,
and side wing area), throttle
and brake pedals, both of the outside mirrors, and
the radio station presets to your preference.
2. Press and hold the 1 or 2 (for driver 1 or 2) button
of the memory control for three seconds. A double
chime will sound
to let you know that the position
has been stored.
To repeat the procedure for a second driver, follow the
preceding steps, but press the other numbered
memory control button.
Each time button
1 or 2 is pressed and released while
the vehicle
is in PARK (P), a single chime will sound and
the memory position will be recalled.
If you use the unlock button on the remote keyless entry
transmitter to enter your vehicle, the preset driver’s
seat, throttle and brake pedal, mirror positions and the
radio station presets will be recalled
if programmed
to do so through the Driver Information Center (DIC).
See DIC Operation and Displays on page
3-43.
The numbers on the back of the transmitters, 1 or 2,
correspond to the numbers on the memory controls.
2-47

The seat, throttle and brake pedals and mirror positions
can also be recalled when placing the key in the
ignition
if programmed to do so through the Driver
Information Center (DIC). See
DIC Operation and
Displays on page
3-43.
To stop recall movement of the memory seat feature at
any time, press one
of the memory buttons or power
seat controls.
Easy Exit Seat
The controls for this memory function are located on the
driver's door.
ii! (Easy Exit Seat): This button is used to program
and recall the desired driver's seat position when
exiting/entering the vehicle. The seat position, can be
personalized for both driver
1 and driver 2.
To store the seat exit position for driver 1 or 2, do the
following:
1. Select the desired driver number by pressing and
releasing the
1 or 2 button or by pressing the
unlock button on the number
1 or 2 remote
keyless entry transmitter. The seat will move to the
stored memory position.
2. Adjust the seat to the desired exit position.
3. Press and hold the exit button of the memory
control for three seconds.
A double chime will sound
to let you know that the position has been stored
for the identified driver
(1 or 2).
To use the seat exit position, do one of the following:
Press the exit button on the memory control.
Or, if this feature is enabled (active) in the DIC,
then removing the key from the ignition will
cause the seat to move
to the exit position.
2-48