light GMC YUKON HYBRID 2010 User Guide

Section 4 Instrument Panel
Climate Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Warning Lights, Gages, and Indicators . . . . . . . . . . .4-3
Instrument Panel Cluster . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Charging System Light . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Fuel Economy Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . 4-6
Antilock Brake System (ABS) Warning Light . . . . 4-7
StabiliTrak
®Indicator Light . . . . . . . . . . . . . . . . . . . . . . 4-7 Engine Coolant Temperature Gage . . . . . . . . . . . . . 4-8
Oil Pressure Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Fuel Gage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . .4-12
DIC Warnings and Messages . . . . . . . . . . . . . . . . . . 4-12
Audio System(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Navigation/Radio System . . . . . . . . . . . . . . . . . . . . . . 4-14
4-1

Warning Lights, Gages, and Indicators
Instrument Panel Cluster
United States version shown, Canada similar
4-3

Tachometer
United States Version
shown, Canada similar
When the gas engine is off and the key is in the
ON/RUN position, the position of the tachometer
indicator shows the state of the vehicle:
.AUTO STOP position indicates that the vehicle is
still able to move and the engine could restart, by
an Auto Start, at any time.
.OFF position indicates that the vehicle is off.
When the engine is on, the tachometer indicator shows
the engine's revolutions per minute (rpm).
Charging System Light
This 12 V battery light
comes on briefly when
the ignition is turned to
ON/RUN, but the engine
is not running, as a check
to show it is working.
It should go out once the engine has been started. If it
stays on, or comes on while driving, there could be a
problem with the 12 V charging system. Have the
vehicle serviced by your dealer/retailer. A 12 V charging
system Driver Information Center (DIC) message may
also appear. See DIC Warnings and Messages
on
page 4‑12for more information. This light could
indicate that there are electrical problems. Have it
checked right away. If a short distance must be driven
with the light on, be certain to turn off all the
accessories.
4-4

Brake System Warning Light
With the ignition in ON/RUN, the brake system warning
light comes on when the parking brake is set. If the
vehicle is driven with the parking brake engaged, a
chime sounds when the vehicle speed is greater than
5 mph (8 km/h).
The vehicle's hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop the vehicle. For good braking,
though, both parts need to be working well.
If the warning light comes on and a chime sounds there
could be a brake problem. Have the brake system
inspected right away.
This light also comes on due to low brake fluid. See the
owner manual for more information.
United StatesCanadaThis light should come on briefly when the ignition key
is turned to ON/RUN. If it does not come on then, have
it fixed so it will be ready to warn if there is a problem.
{WARNING:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system warning light on can lead to a
crash. If the light is still on after the vehicle has
been pulled off the road and carefully stopped,
have the vehicle towed for service.
If the light comes on while driving, pull off the road and
stop carefully. The pedal might be harder to push or can
go closer to the floor. It may take longer to stop. If the
light does not go out, have the vehicle towed for
service. See Towing Your Vehicle on page 5‑2.
4-6

Antilock Brake System (ABS)
Warning Light
For vehicles with the
Antilock Brake System
(ABS), this light comes on
briefly when the engine is
in ON/RUN.
That is normal. If the light does not come on then, have
it fixed so it will be ready to warn if there is a problem.
If the ABS light stays on, turn the ignition off, if the light
comes on while driving, stop as soon as it is safely
possible and turn the ignition off. Then start the engine
again to reset the system. If the ABS light still stays on,
or comes on again while driving, the vehicle needs
service. If the regular brake system warning light is not
on, the vehicle still has brakes, but not antilock brakes.
If the regular brake system warning light is also on, the
vehicle does not have antilock brakes and there is a
problem with the regular brakes. See Brake System
Warning Light on page 4‑6.
For vehicles with a Driver Information Center (DIC),
see DIC Warnings and Messages
on page 4‑12for all
brake related DIC messages.
StabiliTrak®Indicator Light
For vehicles with
StabiliTrak, this warning
light comes on briefly
when the ignition is in
ON/RUN.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light goes off.
If the light comes on and stays on while driving, there
could be a problem with the StabiliTrak system and the
vehicle might need service. When this warning light is
on, the StabiliTrak system is off and does not limit
wheel spin.
The light flashes if the system is active and is working
to assist the driver with directional control of the vehicle
in difficult driving conditions.
See the owner manual for more information.
4-7

Oil Pressure Light
{WARNING:
Do not keep driving if the oil pressure is low.
The engine can become so hot that it catches fire.
Someone could be burned. Check the oil as soon
as possible and have the vehicle serviced.
Notice: Lack of proper engine oil maintenance can
damage the engine. The repairs would not be
covered by the vehicle warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
This light comes on
briefly as a check it
works, when the ignition
is in ON/RUN. If it does
not, have the vehicle
serviced.
If the light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and might have some other system
problem.
During an AUTO STOP there is zero oil pressure, but
this light will not come on.
4-10

Driver Information Center (DIC)
Trip/Fuel Menu Items
Press the trip/fuel button to display the Trip/Fuel Menu
items. For more items see“DIC Operation and
Displays” in the owner manual.
BATTERY VOLTAGE
This display shows the current battery voltage. If the
voltage is in the normal range, the value will display.
For example, the display may read BATTERY
VOLTAGE 13.2 VOLTS. If the voltage is high or low,
the display will read HIGH or LOW. Your vehicle's
charging system regulates voltage based on the state
of the battery. The battery voltage may fluctuate when
viewing this information on the DIC. This is normal.
See“Charging System Light” in the owner manual for
more information. If there is a problem with the battery
charging system, the DIC will display a message.
See DIC Warnings and Messages on page 4‑12.
INST ECON (Instantaneous Economy)
This display normally shows instantaneous fuel
economy. When the vehicle is in Auto Stop mode
AUTO STOP or INST ECON = 99 MPG (l/00km) will be
displayed. See Starting the Vehicle
on page 3‑3for
more information.
DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed
and that some action may be needed by the driver to
correct the condition. If there is more than one message
that needs to be displayed they will appear one after
another.
Some messages may not require immediate action, but
you can press any of the DIC buttons on the instrument
panel or the trip odometer reset stem to acknowledge
that you received the messages and to clear them from
the display.
Some messages cannot be cleared from the DIC
display because they are more urgent. These
messages require action before they can be cleared.
You should take any messages that appear on the
display seriously and remember that clearing the
messages will only make the messages disappear, not
correct the problem.
For information on other DIC messages, see “DIC
Warnings and Messages” in the owner manual Index.
HOOD OPEN
If the hood is not fully closed or there is a problem with
the hood switch, this message will be displayed. Close
the hood to clear the message. If the HOOD OPEN
message continues to be displayed after verifying the
4-12

hood is closed, you should have the hood switch
serviced. Failure to service the hood switch properly
can result in an Auto Start condition.
Auto Stops will be disabled when this message is
displayed. If the vehicle is in auto stop mode when this
message appears, the engine will instantly start.
OIL PRESSURE LOW STOP ENGINE
If engine oil pressure is low, this message will be
displayed on the DIC. 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
level as soon as possible and have your vehicle
serviced. See“Engine Oil”in the owner manual Index.
SERVICE 4 WHEEL DRIVE
This message may display if a problem occurs with the
four-wheel-drive system. If this message appears, stop
as soon as possible and turn off the vehicle. Make sure
the key is in the LOCK/OFF position for at least
one minute and then 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
dealer/retailer.
SERVICE BATTERY CHARGING
SYSTEM
If the 12V battery system faults or fails this message will
appear on the DIC. The battery/charging system light
will appear in the instrument panel cluster. See “Battery
Warning Light” in the owner manual Index. Driving with
this message on could drain the battery. Have the
electrical system checked as soon as possible.
SERVICE BRAKE SYSTEM
This message will be displayed if there is a problem
with the brake system. You will still be able to brake, but
it will be noticeably more difficult. Pull off the road to a
safe location and have your vehicle towed to the
nearest dealer/retailer for service. See “Brakes,”
“Brake System Warning Light,” and“ABS Brake System
Warning Light” in the owner manual Index.
SERVICE HYBRID SYSTEM
If this message is displayed on the DIC, the vehicle may
continue to operate, but you need to have it serviced as
soon as possible.
SERVICE POWER STEERING
This message displays if a problem has been detected
with the electric power steering. Have your vehicle
serviced by your dealer/retailer immediately.
4-13

Power Steering Fluid
The vehicle has electric power steering and does not
use power steering fluid.
Brakes
Brake Fluid
The brake master cylinder
reservoir is filled with
DOT 3 brake fluid. See
Engine Compartment
Overview
on page 6‑4for the location of the
reservoir.
There are only two reasons why the brake fluid level in
the reservoir might go down:
.The brake fluid level goes down because of normal
brake lining wear. When new linings are installed,
the fluid level goes back up.
.A fluid leak in the brake hydraulic system can also
cause a low fluid level. Have the brake hydraulic
system fixed, since a leak means that sooner or
later the brakes will not work well.
Do not top off the brake fluid. Adding fluid does not
correct a leak. If fluid is added when the linings are
worn, there will be too much fluid when new brake
linings are installed. Add or remove brake fluid, as
necessary, only when work is done on the brake
hydraulic system.
{WARNING:
If too much brake fluid is added, it can spill on the
engine and burn, if the engine is hot enough.
You or others could be burned, and the vehicle
could be damaged. Add brake fluid only when
work is done on the brake hydraulic system.
See “Checking Brake Fluid” in this section.
When the brake fluid falls to a low level, the brake
warning light comes on. See “Brake System Warning
Light” in the owner manual.
Refer to the Maintenance Schedule to determine when
to check the brake fluid. See “Scheduled Maintenance”
in the owner manual.
6-13

Notice:
.Using the wrong fluid can badly damage
brake hydraulic system parts. For example,
just a few drops of mineral-based oil, such
as engine oil, in the brake hydraulic system
can damage brake hydraulic system parts
so badly that they will have to be replaced.
Do not let someone put in the wrong kind
of fluid.
.If brake fluid is spilled on the vehicle's
painted surfaces, the paint finish can be
damaged. Be careful not to spill brake fluid
on the vehicle. If you do, wash it off
immediately. See“Washing Your Vehicle”
in the owner manual.
Brake Wear
This vehicle has disc brakes. Disc brake pads have
built-in wear indicators that make a high-pitched
warning sound when the brake pads are worn and new
pads are needed. The sound can come and go or be
heard all the time the vehicle is moving, except when
applying the brake pedal firmly.
{WARNING:
The brake wear warning sound means that soon
the brakes will not work well. That could lead to
an accident. When the brake wear warning sound
is heard, have the vehicle serviced.
Notice: Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates can cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
the brakes.
6-15