2003 GMC YUKON keyless

Remember, the theft-deterrent system won’t activate if
you lock the doors with a key or use the manual
door lock. It activates only if you use a power door lock
switch with the door open, or with the remote keyless
entry transmitter. You should also remember that
you can start your vehicle with the correct ignition key if
the alarm has been set off.
Here’s how to avoid setting off the alarm by accident:
If you don’t want to activate the theft-deterrent
system, the vehicle should be locked with the door
keyafterthe doors are closed.
Always unlock a door with a key, or use the remote
keyless entry transmitter. Unlocking a door any
other way will set off the alarm if the system
has been armed.
If you set off the alarm by accident, unlock any door
with the key. You can also turn off the alarm by pressing
UNLOCK on the remote keyless entry transmitter or
by placing the key in the ignition and turning it to
START.
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver’s window
and open the driver’s door.
2. Activate the system by locking the doors with the
power door lock switch while the door is open, or
with the remote keyless entry transmitter.
3. Get out of the vehicle, close the door and wait for
the security light to go out.
4. Then reach in through the window, unlock the door
with the manual door lock and open the door. This
should set off the alarm.
If the alarm does not sound when it should but the
vehicle’s headlampsash, check to see if the horn
works. The horn fuse may be blown. To replace
the fuse, seeFuses and Circuit Breakers on page 5-98.
If the alarm does not sound or the vehicle’s headlamps
do notash, the vehicle should be serviced by an
authorized service center.
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2003 - Yukon/Yukon XL

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 1or 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).
The numbers on the back of the transmitters, 1 or 2,
correspond to the numbers on the memory controls.
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).
To stop recall movement of the memory seat feature at
any time, press one of the memory buttons or power
seat controls.
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2003 - Yukon/Yukon XL

If your vehicle is not equipped with the DIC steering
wheel buttons you will not have any of these
personalization options except for DISPLAY
LANGUAGE. See DISPLAY LANGUAGE later in this
section for more information.
•AUTOMATIC LOCKING
•AUTOMATIC UNLOCKING
•REMOTE LOCK FEEDBACK
•ALARM WARNING TYPE
•REMOTE UNLOCK FEEDBACK
•HEADLAMPS ON AT EXIT
•PERIMETER LIGHTING
•SEAT POSITION RECALL
•EASY EXIT DRIVER SEAT
•CURB VIEW ASSIST
•DISPLAY LANGUAGE
•DISPLAY UNITS (ENG/MET)
The default options for the above features were set
when your vehicle left the factory. The default options
are noted in the text following, but may have been
changed from their default state since then. The driver’s
preferences are recalled by pressing the unlock
button on the remote keyless entry transmitter or by
pressing the appropriate memory button 1 or 2 located
on the driver’s door.
Alarm Warning Type
Press the personalization button until ALARM
WARNING TYPE appears in the display. To select your
personalization for alarm warning type, press the
select button while ALARM WARNING TYPE is
displayed on the DIC. Pressing the select button will
scroll through the following choices:
ALARM WARNING: BOTH (default):The headlamps
willflash and the horn will chirp when the alarm is
active.
ALARM WARNING: OFF:There will be no alarm
warning on activation.
ALARM WARNING: HORN:The horn will chirp when
the alarm is active.
ALARM WARNING: LAMPS:The headlamps willflash
when the alarm is active.
Choose one of the four options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature. For more
information on alarm warning type, seeContent
Theft-Deterrent on page 2-16.
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2003 - Yukon/Yukon XL

Seat Position Recall
Press the personalization button until SEAT POSITION
RECALL appears on the display. To select your
personalization for seat position recall, press the select
button while SEAT POSITION RECALL is displayed
on the DIC. Pressing the select button will scroll through
the following choices:
SEAT POSITION RECALL OFF (default):The memory
seat position you saved will only be recalled when the
memory button 1 or 2 is pressed on the driver’s
door panel.
SEAT POSITION RECALL AT KEY IN:The memory
seat position you saved will be recalled when you
put the key in the ignition.
SEAT POSITION RECALL ON REMOTE:The memory
seat position you saved will be recalled when you
unlock the vehicle with the remote keyless entry
transmitter.
Choose one of the three options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature. For more
information on seat position recall seeMemory Seat on
page 2-58.
Perimeter Lighting
Press the personalization button until PERIMETER
LIGHTING appears in the display. To select your
personalization for perimeter lighting, press the select
button while PERIMETER LIGHTING is displayed on the
DIC. Pressing the select button will scroll through the
following choices:
PERIMETER LIGHTING ON (default):The headlamps
and back-up lamps will come on for 40 seconds, if it
is dark enough outside, when you unlock the vehicle
with the remote keyless entry transmitter.
PERIMETER LIGHTING OFF:The perimeter lights will
not come on when you unlock the vehicle with the
remote keyless entry transmitter.
Choose on of the two options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature.
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2003 - Yukon/Yukon XL

Remote Lock Feedback
Press the personalization button until REMOTE LOCK
FEEDBACK appears in the display. To select your
personalization for the feedback you will receive when
locking the vehicle with the remote keyless entry
transmitter, press the select button while REMOTE
LOCK FEEDBACK is displayed on the DIC. Pressing
the select button will scroll through the following choices:
LOCK FEEDBACK: BOTH (default):The parking
lamps willflash each time you press the button with the
lock symbol on the remote keyless entry transmitter
and the horn will chirp the second time you press the
lock button.
LOCK FEEDBACK: OFF:There will be no feedback
when locking the vehicle.
LOCK FEEDBACK: HORN:The horn will chirp the
second time you press the button with the lock symbol
on the remote keyless entry transmitter.
LOCK FEEDBACK: LAMPS:The parking lamps will
flash each time you press the button with the lock
symbol on the remote keyless entry transmitter.
Choose one of the four options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature.
Remote Unlock Feedback
Press the personalization button until REMOTE
UNLOCK FEEDBACK appears in the display. To select
your personalization for the feedback you will receive
when unlocking the vehicle with the remote keyless
entry transmitter, press the select button while REMOTE
UNLOCK FEEDBACK is displayed on the DIC.
Pressing the select button will scroll through the
following choices:
UNLOCK FEEDBACK: LAMPS:The parking lamps will
flash each time you press the button with the unlock
symbol on the remote keyless entry transmitter.
UNLOCK FEEDBACK: BOTH (default):The parking
lamps willflash each time you press the button with the
unlock symbol on the remote keyless entry transmitter
and the horn will chirp the second time you press
the unlock button.
UNLOCK FEEDBACK: OFF:There will be no feedback
when unlocking the vehicle.
UNLOCK FEEDBACK: HORN:The horn will chirp the
second time you press the button with the unlock
symbol on the remote keyless entry transmitter.
Choose one of the four options and press the
personalization button while it is displayed on the DIC to
select it and move on to the next feature.
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2003 - Yukon/Yukon XL

A temporary solution to hotter transmission operating
temperatures may be to let the transmission cool down.
If the transmission is operated at higher temperatures
on a frequent basis, seeScheduled Maintenance
on page 6-5for the proper transmission maintenance
intervals.
DRIVER DOOR AJAR
If the driver’s door is not fully closed, this message will
appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Pressing the select
button will acknowledge this message and clear it
from the DIC display.
PASSENGER DOOR AJAR
If the passenger’s door is not fully closed, this message
will appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Pressing the select
button will acknowledge this message and clear it
from the DIC display.
LEFT REAR DOOR AJAR
If the driver’s side rear door is not fully closed, this
message will appear on the display and you will hear a
chime. Stop and turn off the vehicle, check the door
for obstacles, and close the door again. Check to see if
the message still appears on the DIC. Pressing the
select button will acknowledge this message and clear it
from the DIC display.
RIGHT REAR DOOR AJAR
If the passenger’s side rear door is not fully closed, this
message will appear on the display and you will hear
a chime. Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if
the message still appears on the DIC. Pressing
the select button will acknowledge this message and
clear it from the DIC display.
RFA # BATTERY LOW
If a remote keyless entry transmitter battery is low, this
message will appear on the DIC. The battery needs
to be replaced in the transmitter. Pressing the select
button will acknowledge this message and clear it from
the DIC display.
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2003 - Yukon/Yukon XL

Instrument Panel
Cluster.......................................................3-38
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-18
Instrument Panel Fuse Block............................5-98
Interior Lamps................................................3-18
J
Jump Starting.................................................5-44
K
Key Lock Cylinders Service..............................6-12
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Lamps
Exterior......................................................3-14
Interior.......................................................3-18
Lamps On Reminder.......................................3-16
Lap Belt........................................................1-37
Lap-Shoulder Belt...........................................1-28
LATCH System
Child Restraints...........................................1-58
Securing a Child Restraint Designed for the
LATCH System........................................1-61Leaving Your Vehicle With the Engine Running . . . 2-36
LEFT REAR DOOR AJAR................................3-69
Level Control..................................................4-59
Liftgate..........................................................2-12
Liftgate Glass and Liftgate................................2-13
Light
Air Bag Readiness.......................................3-40
Anti-Lock Brake System Warning...................3-44
Battery Warning..........................................3-42
Brake System Warning.................................3-43
Cruise Control.............................................3-52
Low Fuel Warning.......................................3-53
Malfunction Indicator....................................3-48
Passenger Air Bag Status Indicator................3-40
Safety Belt Reminder...................................3-39
Tow/Haul Mode...........................................3-52
Traction Off................................................3-45
Lighted Visor Vanity Mirror...............................2-16
Listening to a DVD................................3-97, 3-110
Loading Your Vehicle.......................................4-58
Loading Your Vehicle for Off-Road Driving..........4-25
Locking Rear Axle...........................................4-12
Lockout Protection..........................................2-12
Lock-Out Switch
.............................................2-15
Locks
Delayed Locking
........................................... 2-9
Door
........................................................... 2-7
Lockout Protection
.......................................2-12
Power Door
.................................................. 2-8
Programmable Automatic Door Locks
............... 2-9
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2003 - Yukon/Yukon XL

Rear Axle......................................................5-50
Locking......................................................4-12
Rear Door Security Locks................................2-11
Rear Safety Belt Comfort Guides......................1-41
Rear Seat Audio Controls...............................3-121
Rear Seat Audio (RSA)..................................3-120
Rear Seat Entertainment System.....................3-111
Rear Seat Operation......................................... 1-8
Rear Seat Outside Passenger Positions.............1-38
Rear Seat Passengers, Safety Belts..................1-38
Rear Storage Area..........................................2-56
Rear Window Defogger............................3-24, 3-31
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display................2-43
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature Display . . . 2-40
Rearview Mirrors.............................................2-40
Reclining Seatbacks.......................................... 1-6
Reclining the Seatbacks...................................1-20
Recreational Vehicle Towing.............................4-55
REDUCED ENGINE POWER...........................3-65
Remote Alarm.................................................. 2-5
Remote Control.............................................3-114
Remote Keyless Entry System............................ 2-4
Remote Keyless Entry System, Operation............ 2-5
Removing the 50/50 Split Bench Seat
................1-13
Removing the Bench Seat
................................1-18
Removing the Flat Tire and Installing the
Spare Tire
..................................................5-74
Removing the Spare Tire and Tools
...................5-70Replacement Bulbs
.........................................5-59
Replacing Brake System Parts
..........................5-43
Replacing Restraint System Parts After a Crash
.....1-87
Replacing the 50/50 Split Bench Seat
................1-14
Replacing the Bench Seat
................................1-19
Reporting Safety Defects
Canadian Government
..................................7-10
General Motors
...........................................7-10
United States Government
.............................. 7-9
Reprogramming a Single HomeLink
®Button
.......2-53
Resetting Defaults
...........................................2-54
Restraint System Check
...................................6-12
Checking Your Restraint Systems
...................1-86
Replacing Restraint System Parts After a
Crash
.....................................................1-87
Restraint Systems
Checking
....................................................1-86
Replacing Parts
...........................................1-87
Resynchronization
............................................. 2-7
Retained Accessory Power (RAP)
......................2-19
RFA # BATTERY LOW
....................................3-69
Right Front Passenger Position, Safety Belts
......1-36
RIGHT REAR DOOR AJAR
..............................3-69
Roadside
Assistance Program
....................................... 7-5
Rocking Your Vehicle To Get It Out
...................4-52
Running Your Engine While You Are Parked
.......2-39
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2003 - Yukon/Yukon XL