2002 GMC YUKON ignition

1-6 Heated Front Seats (If Equipped)
If your vehicle has this
feature, the button used to
control the driver's heated
seat is located on the
driver's door panel. The
button used to control the
passenger's heated seat is
located on the passenger's
door panel.
To activate the heated seats, press the button once for
the HI heat setting. Press the button again for the LO
heat setting. To turn off the heated seats, press the
button a third time. An indicator light will illuminate for
each heat setting anytime the heated seats are operating.
The ignition must be in RUN for them to operate.
The heated front seats will be canceled after the ignition
is turned to OFF. If you still want to use the heated front
seat feature after you restart your vehicle, you will need
to press the heated seat button again.
Reclining Seatbacks
To adjust the front seatback, lift the manual lever located
on the outboard side of the seat. Release the lever to
lock the seatback where you want it. Lift the lever again
without pushing on the seatback and the seatback will
go to an upright position.
If your vehicle has power seats with a power recliner,
see ªPower Seatsº in the Index for further information
on how to operate the reclining seatback feature.

1-44 Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag systems in several places
around your vehicle. Your dealer and the service manual
have information about servicing your vehicle and the
air bag systems. To purchase a service manual, see
ªService and Owner Publicationsº in the Index.
CAUTION:
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured if you are close to an air bag when
it inflates. Avoid yellow connectors. They are
probably part of the air bag systems. Be sure to
follow proper service procedures, and make sure
the person performing work for you is qualified
to do so.
The air bag systems do not need regular maintenance.
Adding Equipment to Your Air
Bag-Equipped Vehicle
Q:If I add a push bumper or bicycle rack to the
front of my vehicle, will it keep the air bags
from working properly?
A:As long as the push bumper or bicycle rack is
attached to your vehicle so that the vehicle's basic
structure isn't changed, it's not likely to keep the
air bags from working properly in a crash.

2-3 Manual Windows
Turn the hand crank on each door to manually raise
or lower the manual windows.
Power Windows (If Equipped)
If you have power windows, the controls are located on
each of the side doors.
The driver's door has a switch for the passenger's
windows as well. Your power windows will work
when the ignition has been turned to ACCESSORY
or RUN or when Retained Accessory Power (RAP) is
active. See ªRetained Accessory Powerº in the Index.
Press the bottom of the switch with the power window
symbol on it to lower the window or the top of the
switch to raise it.
Express
-Down Window
The driver's window also has an express down feature
that allows the window to be lowered without holding
the switch. Press and hold the rear of the window
switch for one second to activate the express down
mode. The express down mode can be canceled at any
time by pressing the opposite side of the switch. To open
the window partway, lightly tap the switch until the
window is at the desired position.
Lock
-Out Switch
If you have power windows, the driver's door power
window switch has a lockout feature. This feature prevents
all windows from operating, except from the driver's
position, when the front driver's door button labeled
WINDOW LOCK is engaged. When the button is not
engaged, the passenger's power windows will operate.

2-4
Keys
CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons. A child or
others could be badly injured or even killed.
They could operate the power windows or other
controls or even make the vehicle move. Don't
leave the keys in a vehicle with children.

2-5
Your vehicle has one
double
-sided key for the
ignition and all door locks
as well as the spare tire
hoist lock.
Your vehicle may also have
a key that locks and unlocks
the center floor console
only (if equipped).If you ever lose your keys, your dealer will be able to
assist you with obtaining replacements.
NOTICE:
Your vehicle has a number of new features that
can help prevent theft. But you can have a lot of
trouble getting into your vehicle if you ever lock
your key inside. You may even have to damage
your vehicle to get in. So be sure you have an
extra key.
If you ever do get locked out of your vehicle, call the
GM Roadside Assistance Center. See ªRoadside
Assistanceº in the Index. If your vehicle is equipped
with the OnStar system with an active subscription and
you lock your keys inside the vehicle, OnStar may be
able to send a command to unlock your vehicle. See
ªOnStarº in the Index for more information.

2-8
On the passenger side of the
rear cargo door or liftgate
opening trim there is a
power lock switch which
can be used to lock or
unlock all of the doors.
If the rear lock switch is pressed with the rear doors
open, all of the doors will lock five seconds after the
cargo doors are closed.
The power door locks will operate at any time even
when the ignition is off.
Operating the power locks may interact with the
theft
-deterrent system (if equipped). See ªContent
Theft
-Deterrentº in the Index.
Programmable Automatic Door Locks
(If Equipped)
If your vehicle has power door locks, it is equipped
with a feature that enables you to program your power
door locks.
Your vehicle left the factory programmed to
automatically lock all doors when the vehicle is shifted
out of PARK (P), and all doors unlock when the vehicle
is shifted into PARK (P). You can set the automatic door
lock feature to unlock the doors you select once the
vehicle is in PARK (P).
The following instructions detail how to program your
door locks.

2-9
To enter the program mode you need to do
the following:
1. Beginning with the ignition in OFF. Pull back on
the turn signal/multifunction lever all the way toward
you until flash
-to-pass is activated, and hold it while
you perform the next step.
2. Turn your key to RUN and OFF twice. Then, with
the key in OFF, release the turn signal/multifunction
lever. Once you do this, you will hear the lock
mechanism lock and unlock.
3. You are now ready to program the automatic door
locks. Select one of the following four programming
options and follow the instructions. You will have
thirty seconds to begin programming. If you exceed
the thirty
-second limit, the locks will automatically
lock and unlock to indicate you have left the
program mode. If this occurs, repeat the procedure
beginning with Step 1.
You can exit the program mode any time by turning the
ignition to RUN (the locks will automatically lock and
unlock to indicate you are leaving the program mode).
If the lock/unlock switches are not pressed while in the
programming mode, the auto lock/unlock setting will
not be modified.The following is a list of the available
programming options:

All doors lock/Only the driver's door unlocks:
Press the lock side of the power lock switch on the
door panel once and then the unlock side once.

All doors lock/All doors unlock: Press the lock side
of the power lock switch on the door panel once, and
then the unlock side twice.

All doors lock/None of the doors unlock: Press the
lock side of the power lock switch on the door panel
once, and then the unlock side three times.

No doors lock/None of the doors unlock: Press the
lock side of the power lock switch on the door panel
twice. This turns off the automatic lock feature.
For more information, see your dealer.

2-10 Lockout Prevention
This feature protects you from locking your key in
the vehicle when the key is in the ignition and a door
is open.
If the power lock switch is pressed when a door is open
and the key is in the ignition, all of the doors will lock
and then the driver's door will unlock.
Child Security Locks (If Equipped)
With this feature, you can lock the rear side doors so
they cannot be opened from the inside by passengers.
Your vehicle may have one of the two child security
lock labels shown.
This feature is located on the inside edge of the
rear doors.
Move the lever forward to engage the security feature.
Move the lever rearward to return the door locks to
normal operation.