2007 GMC YUKON XL battery

If, after several seconds, all status indicator lights
remain on, or if there are no lights at all, there
may be a problem with the lights or the passenger
sensing system. See your dealer for service.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together, it
means that something may be wrong with
the airbag system. If this ever happens,
have the vehicle serviced promptly,
because an adult-size person sitting in the
right front passenger seat may not have
the protection of the frontal airbag. See
Airbag Readiness Light on page 227.
Charging System Light
The charging system
light will come on briey
when you turn on the
ignition, but the
engine is not running,
as a check to show you
it is working.
It should go out once the engine is running.
If it stays on, or comes on while you are driving,
you may have a problem with the charging system.
It could indicate that you have problems with the
generator, the generator drive belt, or another
electrical problem. Have it checked right away.
Driving while this light is on could drain your
battery.
When this light comes on, the DIC will also display
the SERVICE BATTERY NOT CHARGING
SYSTEM message. SeeDIC Warnings and
Messages on page 254for more information.
If you must drive a short distance with the light on,
be certain to turn off all your accessories, such as
the radio and air conditioner, to reduce the drain on
your battery.
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Voltmeter Gage
When your engine is not
running, but the ignition
is in RUN, this gage
shows your battery’s
state of charge in
DC volts.
When the engine is running, the gage shows the
condition of the charging system. The charging
system regulates voltage based on the state of the
battery for improved fuel economy and battery
life. The gage may transition from a higher to lower
or a lower to higher reading, this is normal.
Readings between the low and high warning zones
indicate the normal operating range.Readings in the low warning zone may occur
when a large number of electrical accessories are
operating in the vehicle and the engine is left at
an idle for an extended period. This condition
is normal since the charging system is not able to
provide full power at engine idle. As engine
speeds are increased, this condition should correct
itself as higher engine speeds allow the charging
system to create full power. If there is a problem
with the battery charging system, this light
will come on or the SERVICE BATTERY
CHARGING SYSTEM DIC message will display.
SeeDIC Warnings and Messages on page 254
andCharging System Light on page 230for more
information.
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Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have
or may begin programs to inspect the emission
control equipment on your vehicle. Failure to pass
this inspection could prevent you from getting a
vehicle registration.
Here are some things you need to know to help
your vehicle pass an inspection:
Your vehicle will not pass this inspection if the
check engine light is on or not working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that
critical emission control systems have not been
completely diagnosed by the system. The vehicle
would be considered not ready for inspection. This
can happen if you have recently replaced your
battery or if your battery has run down. The
diagnostic system is designed to evaluate critical
emission control systems during normal driving.
This may take several days of routine driving. If you
have done this and your vehicle still does not pass
the inspection for lack of OBD system readiness,
your GM dealer can prepare the vehicle for
inspection.
Oil Pressure Gage
The oil pressure gage shows the engine oil
pressure in psi (pounds per square inch) when
the engine is running. Canadian vehicles indicate
pressure in kPa (kilopascals).
Oil pressure may vary with engine speed, outside
temperature and oil viscosity, but readings above
the low pressure zone indicate the normal operating
range. When the oil pressure reaches the low
pressure zone, the “OIL PRESSURE LOW STOP
ENGINE” message will appear in the Driver
Information Center. SeeDIC Warnings and
Messages on page 254andEngine Oil on
page 438for more information.
United StatesCanada
239

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 113andDIC Operation
and Displays (With DIC Buttons) on page 244or
DIC Operation and Displays (Without DIC Buttons)
on page 251for more information.
REPLACE BATTERY IN REMOTE KEY
If a remote keyless entry transmitter battery is low,
this message will display. The battery needs to
be replaced in the transmitter. See “Battery
Replacement” underRemote Keyless Entry
System Operation on page 113.
RIGHT REAR DOOR OPEN
If the passenger’s side rear 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.
SERVICE 4 WHEEL DRIVE
If a problem occurs with the four-wheel-drive
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 four-wheel-drive system needs
service. See your GM dealer.
SERVICE AIR BAG
If there is a problem with the airbag system, this
message will display. Have your GM dealer inspect
the system for problems. SeeAirbag Readiness
Light on page 227andAirbag System on page 90
for more information.
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SERVICE BATTERY CHARGING
SYSTEM
On some vehicles, if there is a problem with the
battery charging system, this message will display.
Under certain conditions, the battery warning
light may also turn on in the instrument panel
cluster. SeeCharging System Light on page 230.
Driving with this problem could drain the battery.
Turn off all unnecessary accessories. Have
the electrical system checked as soon as possible.
See your GM dealer.
SERVICE BRAKE SYSTEM
If there is a problem with the brake system, this
message will display along with the brake system
warning light. SeeBrake System Warning Light
on page 232. 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 as soon as possible.
See your GM dealer.
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 GM dealer.
SERVICE PARK ASSIST
If your vehicle has the Ultrasonic Rear Parking
Assist (URPA) system, this message will display
if there is a problem with the URPA system. Do not
use this system to help you park. SeeUltrasonic
Rear Parking Assist (URPA) on page 205for more
information. See your GM dealer for service.
260

Headphones
The RSE includes two 2–channel wireless
headphones that are dedicated to this system.
These headphones are used to listen to media
such as CDs, DVDs, MP3s, DVDAs, radio, or any
auxiliary source connected to the auxiliary input
jack, if your vehicle has this feature or A/V
jacks. The wireless headphones have an ON/OFF
button channel 1/2 switch, and a volume control.
If your vehicle has a third row video screen
display, it will have two additional headphones.Push the power button to turn on the headphones.
An indicator light located on the headphones
will illuminate. If the light does not illuminate, the
batteries may need to be replaced. See “Battery
Replacement” later in this section for more
information. Switch the headphones to OFF when
not in use. Channel 1 is dedicated to the video
screen, while Channel 2 is dedicated to RSA
selections.
The infrared transmitters are located at the rear of
the RSE overhead console. The headphones
will shut off automatically to save the battery power
if the DVD system is shut off or if the headphones
are out of range of the transmitters for more
than 3 minutes. If you move too far forward or step
out of the vehicle, the headphones will lose the
audio signal.
The headphones will automatically turn off after
4 hours of continuous use.
To adjust the volume on the headphones, use the
volume control located on the right side.
For optimal audio performance, the headphones
must be worn correctly. The symbol L (Left)
will appear on the upper left side, above the ear
pad and should be positioned on the left ear.
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The symbol R (Right) will appear on the upper
right side, above the ear pad and should be
positioned on the right ear.
Notice:Do not store the headphones in heat
or direct sunlight. This could damage the
headphones and repairs will not be covered by
your warranty. Keep the headphones stored
in a cool, dry place.
The foam ear pads attached to the headphones
may become worn or damaged if they are
not handled or stored properly. If the foam ear
pads do become damaged or worn out, the pads
can be replaced separately from the headphone
set. It is not necessary to replace the complete
headphone set. The headphone replacement foam
ear pads can be ordered in pairs. See your
dealer for more information.Battery Replacement
To change the batteries, do the following:
1. Turn the screw with a coin or screw driver to
loosen, then slide open the battery door
located on the left side of the headphones.
2. Replace the two AAA batteries in the
compartment. Make sure that they are
installed correctly, using the diagram on the
inside of the battery compartment.
3. Replace the battery door and tighten the door
screw.
If the headphones are to be stored for a long
period of time, remove the batteries and keep them
in a cool, dry place.
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Video Screen
The video screen is located in the RSE overhead
console.
To use the video screen, do the following:
1. Push the release button located on the RSE
overhead console.
2. Rotate the screen to the desired position.
When the video screen is not in use, push it up
into its locked position.
If a DVD is playing and the screen is raised to its
locked position, the screen will remain on, this
is normal, and the DVD will continue to play
through the previous audio source.
The RSE overhead console contains the IR
transmitters for the wireless headphones and the
IR receivers for the remote control. They are
located at the rear of the console.
Notice:Avoid directly touching the video
screen, as damage may occur. See “Cleaning
the Video Screen” later in this section for
more information.
Remote Control
To use the remote control, aim it at the transmitter
window at the rear of the RSE overhead console
and press the desired button. Direct sunlight
or very bright light may affect the ability of the RSE
transmitter to receive signals from the remote
control. If the remote control does not seem to be
working, the batteries may need to be replaced.
See “Battery Replacement” later in this section.
Objects blocking the line of sight may also affect
the function of the remote control.
If a CD or DVD is in the Radio DVD slot, the
remote control power button can be used to turn
on the video screen display and start the disc.
The radio can also turn on the video screen
display. SeeRadio with CD and DVD (MP3) on
page 295for more information.
Notice:Storing the remote control in a hot
area or in direct sunlight may damage it,
and the repairs will not be covered by your
warranty. Keep the remote control stored in a
cool, dry place.
327