service reset GMC YUKON XL DENALI 2007 Owners Manual

Low Fuel Warning Light
This light, under the fuel
gage, will come on
briey when you
are starting the engine.
This light and a chime will come on when the fuel
tank is low on fuel. There will also be a “FUEL
LEVEL LOW” message on the Driver Information
Center, seeDIC Warnings and Messages on
page 252for more information. When you add fuel
this light and message should go off. If it does not,
have your vehicle serviced.
Driver Information Center (DIC)
Your vehicle has a Driver Information Center (DIC).
The DIC displays information about your vehicle.
It also displays warning messages if a system
problem is detected.
All messages will appear in the DIC display
located below the tachometer in the instrument
panel cluster.
The DIC comes on when the ignition is on. After a
short delay, the DIC will display the information
that was last displayed before the engine was
turned off.
For the displays available using DIC buttons,
see “DIC Operation and Displays (Using
DIC Buttons)” later in this section andDIC Vehicle
Customization (With DIC Buttons) on page 262.
For the displays available using the trip odometer
reset stem, see “DIC Operation and Displays
(Using Trip Odometer Reset Stem)” later in this
section.
244

OIL PRESSURE LOW STOP ENGINE
Notice:If you drive your vehicle while
the engine oil pressure is low, severe engine
damage may occur. If a low oil pressure
warning appears on the Driver Information
Center (DIC), stop the vehicle as soon as
possible. Do not drive the vehicle until the
cause of the low oil pressure is corrected. See
Engine Oil on page 432for more information.
If low oil pressure levels occur, this message
will display. Stop the vehicle as soon as safely
possible and do not operate it until the cause
of the low oil pressure has been corrected. Check
your oil as soon as possible and have your
vehicle serviced by your dealer. SeeEngine Oil on
page 432.
PARK ASSIST OFF
After the vehicle has been started, this message
will display to remind the driver that the Ultrasonic
Rear Parking Assist (URPA) system has been
turned off. Press the set/reset button or the
trip odometer reset stem to acknowledge this
message and clear it from the DIC display. To turn
the URPA system back on, seeUltrasonic Rear
Parking Assist (URPA) on page 208.
PASSENGER DOOR OPEN
If the passenger’s door is not fully closed and the
vehicle is in a drive gear, this message will
display and a chime will sound. Stop and turn off
the vehicle, check the door for obstructions,
and close the door again. Check to see if the
message still appears on the DIC.
REAR ACCESS OPEN
If the liftgate or liftglass is open while the ignition
is in RUN, this message will display and a
chime will sound. Turn off the vehicle and check
the liftgate and liftglass. Restart the vehicle
and check for the message on the DIC display.
REMOTE KEY LEARNING ACTIVE
This message will display while you are matching
a remote keyless entry transmitter to your
vehicle. See “Matching Transmitter(s) to Your
Vehicle” underRemote Keyless Entry System
Operation on page 116and “DIC Operation and
Displays (Using DIC Buttons)” earlier in this
section for more information.
256

SERVICE BRAKES SOON
If there is a problem with the brake system, this
message will display. If this message appears,
stop as soon as possible and turn off the vehicle.
Restart the vehicle and check for the message
on the DIC display. If the message is still displayed
or appears again when you begin driving, the
brake system needs service. See your dealer.
SERVICE PARK ASSIST
This message will display if there is a problem
with the Ultrasonic Rear Parking Assist (URPA)
system. Do not use this system to help you park.
SeeUltrasonic Rear Parking Assist (URPA) on
page 208for more information. See your dealer for
service.
SERVICE STABILITRAK
If your vehicle has StabiliTrak®and this message
displays, it means there may be a problem
with the StabiliTrak
®system. If you see this
message, try to reset the system. Stop; turn off
the engine for at least 15 seconds; then start
the engine again. If this message still comes on, it
means there is a problem. You should see your
dealer for service. The vehicle is safe to drive,
however, you do not have the benet of
StabiliTrak
®, so reduce your speed and drive
accordingly.
SERVICE SUSPENSION SYSTEM
If your vehicle has the Autoride®suspension
system, this message will display when the
Autoride
®suspension system is not operating
properly. Have your vehicle serviced by your
dealer.
258

4(Information) (XM™ Satellite Radio Service,
MP3, and RDS Features):Press the information
button to display additional text information
related to the current FM-RDS or XM™ station,
or MP3 song. A choice of additional information
such as: Channel, Song, Artist, and CAT may
appear. Continue pressing the information button
to highlight the desired label, or press the
pushbutton positioned under any one of the labels
and the information about that label will be
displayed.
When information is not available, No Info will
appear on the display.
Storing a Radio Station as a Favorite
Drivers are encouraged to set up their radio station
favorites while the vehicle is parked. Tune to
your favorite stations using the presets, favorites
button, and steering wheel controls (if your vehicle
has them). SeeDefensive Driving on page 342.FAV (Favorites):A maximum of 36 stations
can be programmed as favorites using the
six pushbuttons positioned below the radio station
frequency labels and by using the radio favorites
page button (FAV button). Press the FAV button to
go through up to six pages of favorites, each
having six favorite stations available per page.
Each page of favorites can contain any
combination of AM, FM, or XM™ (if equipped)
stations. To store a station as a favorite, perform
the following steps:
1. Tune to the desired radio station.
2. Press the FAV button to display the page
where you want the station stored.
3. Press and hold one of the six pushbuttons
until you hear a beep. Whenever that
pushbutton is pressed and released, the
station that was set will return.
4. Repeat the steps for each pushbutton radio
station you want stored as a favorite.
279

Finding a Station
BAND:Press this button to switch between AM,
FM, or XM™ (if equipped). The display will
show the selection.
f(Tune):Turn this knob to select radio stations.
©SEEK¨:Press the right or left SEEK
arrow to go to the next or to the previous station
and stay there.
To scan stations, press and hold either SEEK
arrow for a few seconds until you hear a beep. The
radio will go to a station, play for a few seconds,
then go on to the next station. Press either
SEEK arrow again to stop scanning.
The radio will only seek and scan stations with a
strong signal that are in the selected band.
4(Information) (XM™ Satellite Radio Service,
MP3, and RDS Features):Press the information
button to display additional text information
related to the current FM-RDS or XM™ station, or
MP3 song. A choice of additional information
such as: Channel, Song, Artist, and CAT
may appear. Continue pressing the information
button to highlight the desired label, or press
the pushbutton positioned under any one of the
labels and the information about that label will be
displayed.
When information is not available, No Info will
appear on the display.
Storing a Radio Station as a Favorite
Drivers are encouraged to set up their radio station
favorites while the vehicle is parked. Tune to
your favorite stations using the presets, favorites
button, and steering wheel controls, if the
vehicle has them. SeeDefensive Driving on
page 342.
296

XM Radio Messages
Radio Display Message Condition Action Required
XL (Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer’s request, by calling 1-800-852-XMXM (9696).
XM Updating Updating encryption code The encryption code in the receiver is being updated, and
no action is required. This process should take no longer
than 30 seconds.
No XM Signal Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM™ signal. When you move
into an open area, the signal should return.
Loading XM Acquiring channel audio
(after four second delay)The audio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
Channel Off Air Channel not in service This channel is not currently in service. Tune to another
channel.
Channel Unavail Channel no longer
availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of the
presets, choose another station for that preset button.
No Artist Info Artist Name/Feature
not availableNo artist information is available at this time on this channel.
The system is working properly.
No Title Info Song/Program Title
not availableNo song title information is available at this time on this
channel. The system is working properly.
319

If the system fails to turn on or activate, the
StabiliTrak®light along with one of the following
messages will be displayed on the Driver
Information Center (DIC): TRACTION CONTROL
OFF, SERVICE TRACTION CONTROL,
STABILITRAK OFF, SERVICE STABILITRAK. If
these DIC messages appear, make sure the
StabiliTrak
®system has not been turned off using
the StabiliTrak®on/off button. Then turn the
steering wheel clockwise from the nine o’clock
position to the three o’clock position. If this clears
the message(s), your vehicle does not need
servicing. If this does not clear the message(s),
then turn the vehicle off, wait 15 seconds, and then
turn it back on again to reset the system. If any
of these messages still appear on the Driver
Information Center (DIC), your vehicle should be
taken in for service. For more information on
the DIC messages, seeDriver Information Center
(DIC) on page 244.The StabiliTrak
®light
will ash on the
instrument panel cluster
when the system is
both on and activated.
You may also feel or hear the system working;
this is normal.
The traction control
disable button is located
on the instrument
panel below the climate
controls.
The traction control part of StabiliTrak
®can
be turned off by pressing and releasing the
StabiliTrak
®button if both systems (traction control
and StabiliTrak®) were previously on. To disable
both traction control and StabiliTrak®, press
and hold the button for ve seconds.
350

When the system has calculated that oil life has
been diminished, it will indicate that an oil change
is necessary. A CHANGE ENGINE OIL SOON
message will come on. SeeDIC Warnings
and Messages on page 252. Change your oil as
soon as possible within the next 600 miles
(1 000 km). It is possible that, if you are driving
under the best conditions, the oil life system may
not indicate that an oil change is necessary for
over a year. However, your engine oil and
lter must be changed at least once a year and at
this time the system must be reset. Your dealer
has GM-trained service people who will perform
this work using genuine GM parts and reset
the system. It is also important to check your oil
regularly and keep it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km)
since your last oil change. Remember to reset the
oil life system whenever the oil is changed.How to Reset the Engine Oil Life
System
The Engine Oil Life System calculates when to
change your engine oil and lter based on vehicle
use. Anytime your oil is changed, reset the
system so it can calculate when the next oil
change is required. If a situation occurs where you
change your oil prior to a CHANGE ENGINE
OIL SOON message being turned on, reset the
system.
Always reset the engine oil life to 100% after
every oil change. It will not reset itself. To reset
the Engine Oil Life System, do the following:
1. Display the OIL LIFE REMAINING on the DIC.
2. Press and hold the SET/RESET button on
the DIC for more than ve seconds. The oil
life will change to 100%.
If the CHANGE ENGINE OIL SOON message
comes back on when you start your vehicle, the
Engine Oil Life System has not reset. Repeat
the procedure.
436

5. Inspect or replace the engine air cleaner/lter.
6. Reinstall the cover and tighten the screws.
7. Reset the air lter restriction indicator, if
the vehicle has one, by pressing the top button
on the indicator.
{CAUTION:
Operating the engine with the air
cleaner/lter off can cause you or others
to be burned. The air cleaner not only
cleans the air; it helps to stop ames if
the engine backres. If it is not there and
the engine backres, you could be
burned. Do not drive with it off, and be
careful working on the engine with the air
cleaner/lter off.
Automatic Transmission Fluid
When to Check and Change Automatic
Transmission Fluid
It is usually not necessary to check the
transmission uid level. A transmission uid leak
is the only reason for uid loss. If you suspect
a small leak, then use the following checking
procedures to check the uid level. However, if
there is a large leak, then it may be necessary to
have the vehicle towed to a dealership service
department and have it repaired before driving the
vehicle further.
Notice:Use of the incorrect automatic
transmission uid may damage your vehicle,
and the damages may not be covered by
your warranty. Always use the automatic
transmission uid listed inRecommended
Fluids and Lubricants on page 561.
Change the uid and lter at the intervals listed in
the Maintenance Schedule. SeeScheduled
Maintenance on page 551. Be sure to use the
transmission uid listed inRecommended Fluids
and Lubricants on page 561.
440

If there is still no sign of steam and your vehicle
is equipped with an engine-driven cooling fan,
push down the accelerator until the engine speed
is about twice as fast as normal idle speed for
at least ve minutes while you are parked.
If there is still no sign of steam and your vehicle is
equipped with an electric cooling fan, idle the
engine for ve minutes while you are parked.
If you still have the warning, turn off the engine
and get everyone out of the vehicle until it
cools down. Also, see “Overheated Engine
Protection Operating Mode” later in this section.
You may decide not to lift the hood but to get
service help right away.Overheated Engine Protection
Operating Mode
If an overheated engine condition exists and the
REDUCED ENGINE POWER message is
displayed, an overheat protection mode which
alternates ring groups of cylinders helps prevent
engine damage. In this mode, you will notice a
loss in power and engine performance. This
operating mode allows your vehicle to be driven to
a safe place in an emergency. Driving extended
miles (km) and/or towing a trailer in the overheat
protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil will be
severely degraded. Repair the cause of coolant
loss, change the oil and reset the oil life
system. SeeEngine Oil on page 432.
450