2011 CHEVROLET TAHOE service

Black plate (8,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
5-8 Instruments and Controls
Engine Coolant
Temperature Gauge
United States
Canada
This gauge shows the engine
coolant temperature.
It also provides an indicator of how
hard the vehicle is working. During a
majority of the operation, the gauge
reads 100°C (210°F) or less. If a
load is being pulled or going up
hills, it is normal for the temperature
to fluctuate and go over the 113°C
(235°F) mark. However, if the gauge
reaches the 125°C (260°F) mark, it
indicates that the cooling system is
working beyond its capacity.
Charging System Light
This 12‐volt 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‐volt
charging system. Have the vehicle
serviced by your dealer. A 12‐volt
charging system Driver Information
Center (DIC) message may also
appear. See Driver Information
Center (DIC) on page 5‑11 for more
information. This light could indicate
that there are electrical problems.

Black plate (9,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Instruments and Controls 5-9
Have it checked right away. If a
short distance must be driven with
the light on, be certain to turn off all
the accessories.
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 8 km/h (5 mph).
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.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.
MetricEnglish
This 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 General Towing
Information on page 9‑16.

Black plate (10,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
5-10 Instruments and Controls
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 vehiclestill 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
Fuel Economy Gauge
on page 5‑6.
See Driver Information Center (DIC)
on page 5‑11 for all brake related
DIC messages.
StabiliTrak®OFF 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. 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.

Black plate (11,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Instruments and Controls 5-11
Engine 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 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.
Information Displays
Driver Information
Center (DIC)
Trip/Fuel Menu Items
Press the trip/fuel button to display
the Trip/Fuel Menu items. For more
items see “Driver Information Center
(DIC)” 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 VOLTS. 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,

Black plate (12,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
5-12 Instruments and Controls
the DIC will display a message. See
Battery Voltage and Charging
Messages on page 5‑12.
INST ECON (Instantaneous
Economy)
This display normally shows
instantaneous fuel economy. When
the vehicle is in Auto Stop mode
AUTO STOP or IFE = 0 L/100km or
IFE = 99 MPG will be displayed.
SeeStarting the Vehicle on
page 9‑2 for more information.Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing
V(Set/Reset).
The messages that require
immediate action cannot be cleared
until that action is performed.
All messages should be taken
seriously. Clearing the message
does not correct the problem.
The following are the possible
messages for the Hybrid and some
information about them. For
information on other DIC messages,
see “Vehicle Messages” in the
owner manual.
Battery Voltage and
Charging Messages
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. Driving
with this message on could drain
the battery. Have the electrical
system checked as soon as
possible.
Brake System Messages
SERVICE BRAKE SYSTEM
This message may 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 for
service. See “Brakes,” “Brake

Black plate (13,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Instruments and Controls 5-13
System Warning Light,”and“ABS
Brake System Warning Light” in the
owner manual.
This message may also come on
when you are towing a trailer. See
“Trailer Brakes” underTrailer Towing
on page 9‑16 for more information.
Door Ajar Messages
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 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.
Engine Oil Messages
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.
Service Vehicle Messages
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 immediately.
Transmission Messages
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.

Black plate (11,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
Driving and Operating 9-11
Automatic Transfer Case
The transfer case knob is located to
the left of the instrument panel
cluster.
Use this dial to shift into and out of
four-wheel drive.
You can choose among five driving
settings:
Indicator lights in the switches show
you which setting you are in. The
indicator lights will come on briefly
when you turn on the ignition and
the last chosen setting will stay on.If the lights do not come on, you
should take the vehicle to your
dealer for service. An indicator light
will flash while shifting. It will stay on
when the shift is completed. If for
some reason the transfer case
cannot make a requested shift, it will
return to the last chosen setting.
2
m(Two-Wheel Drive High):
This
setting is used for driving in most
street and highway situations. The
front axle is not engaged in
two-wheel drive. This setting also
provides the best fuel economy.
AUTO (Automatic Four-Wheel
Drive): This setting is ideal for use
when road surface traction
conditions are variable. When
driving your vehicle in AUTO, the
front axle is engaged, but the
vehicle's power is primarily sent to
the rear wheels. When the vehicle's
software determines a need for
more traction, the system will
transfer more power to the front wheels. Driving in this mode results
in slightly lower fuel economy than
Two-Wheel Drive High.
4
m(Four-Wheel Drive High):
Use
the four-wheel high position when
you need extra traction, such as on
snowy or icy roads or in most
off-road situations. This setting also
engages the front axle to help drive
the vehicle. This is the best setting
to use when plowing snow.
4
n(Four-Wheel Drive Low) : This
setting also engages the front axle
and delivers extra torque. You may
never need this setting. It sends
maximum power to all four wheels.
You might choose Four-Wheel Drive
Low if you are driving off-road in
deep sand, deep mud, deep snow,
and while climbing or descending
steep hills.

Black plate (12,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
9-12 Driving and Operating
The vehicle has StabiliTrak. Shifting
into Four-Wheel-Drive Low will turn
Traction Control and StabiliTrak off.
See“StabiliTrak System” in the
owner manual.
{WARNING
Shifting the transfer case to
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or someone else
could be seriously injured. Be
sure to set the parking brake
before placing the transfer case in
N (Neutral). See “Parking Brake”
in the owner manual for more
information.
N (Neutral): Shift the vehicle's
transfer case to N (Neutral) only
when towing the vehicle. See
“Recreational Vehicle Towing” or
“Towing Your Vehicle” in the owner
manual. If the SERVICE 4 WHEEL DRIVE
message stays on, you should take
the vehicle to your dealer for
service. See
Transmission
Messages on page 5‑13.
Shifting Into Four-Wheel Drive
High or AUTO (Automatic
Four-Wheel Drive)
Turn the knob to the Four-Wheel
High or AUTO position. This can be
done at any speed, except when
shifting from Four-Wheel Drive Low.
The indicator light will flash while
shifting. It will remain on when the
shift is completed.
Shifting Into Two-Wheel
Drive High
Turn the knob to the Two-Wheel
High position. This can be done at
any speed, except when shifting
from Four-Wheel Drive Low.
See “Shifting Out of Four-Wheel
Drive Low” in this section for more
information. Shifting Into Four-Wheel
Drive Low
When Four-Wheel Low is engaged,
vehicle speed should be kept below
64 km/h (40 mph). Extended
high-speed operation in 4L may
damage or shorten the life of the
drivetrain.
To shift to the Four-Wheel Drive
Low position, the ignition must be in
ON/RUN and the vehicle must be
stopped or moving less than 5 km/h
(3 mph) with the transmission in
N (Neutral). The preferred method
for shifting into Four-Wheel Drive
Low is to have the vehicle moving
1.6 to 3.2 km/h (1 to 2 mph). Turn
the knob to the Four-Wheel Drive
Low position. You must wait for the
Four-Wheel Drive Low indicator light
to stop flashing and remain on
before shifting the transmission
into gear.