2011 CHEVROLET TAHOE check engine light

Black plate (1,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
2011 Chevrolet Tahoe and GMC Yukon/Yukon Denali HybridM
In Brief. . . . . . . . . . . . . . . . . . . . . . . . 1-1
Initial Drive Information . . . . . . . . 1-1
Hybrid Features . . . . . . . . . . . . . . . 1-2
Performance and
Maintenance . . . . . . . . . . . . . . . . . 1-5
Seats and Restraints . . . . . . . . . 3-1
Front Seats . . . . . . . . . . . . . . . . . . . . 3-1
Airbag System . . . . . . . . . . . . . . . . . 3-2
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . 5-3
Information Displays . . . . . . . . . . 5-11
Vehicle Messages . . . . . . . . . . . . 5-12 Infotainment System
. . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Climate Controls . . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-1
Starting and Operating . . . . . . . . . 9-2
Engine Exhaust . . . . . . . . . . . . . . . . 9-6
Automatic Transmission . . . . . . . 9-7
Drive Systems . . . . . . . . . . . . . . . . 9-10
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-15
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-16 Vehicle Care
. . . . . . . . . . . . . . . . . 10-1
Vehicle Checks . . . . . . . . . . . . . . . 10-2
Bulb Replacement . . . . . . . . . . 10-13
Electrical System . . . . . . . . . . . . 10-14
Wheels and Tires . . . . . . . . . . . 10-17
Jump Starting . . . . . . . . . . . . . . . 10-32
Towing . . . . . . . . . . . . . . . . . . . . . . 10-36
Appearance Care . . . . . . . . . . . 10-40
Service and Maintenance . . . 11-1
Scheduled Maintenance . . . . . . 11-1
Recommended Fluids, Lubricants, and Parts . . . . . . . 11-1
Technical Data . . . . . . . . . . . . . . . 12-1
Vehicle Data . . . . . . . . . . . . . . . . . . 12-2
Index . . . . . . . . . . . . . . . . . . . . . i-1

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 (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 (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 (34,1)Chevrolet Tahoe and GMC Yukon/Yukon Denali Hybrid - 2011
10-34 Vehicle Care
5. The remote negative (−) is asolid engine ground.
{WARNING
An electric fan can start up even
when the engine is not running
and can injure you. Keep hands,
clothing and tools away from any
underhood electric fan.
{WARNING
Using an open flame near a
battery can cause battery gas to
explode. People have been hurt
doing this, and some have been
blinded. Use a flashlight if you
need more light.
Be sure the battery has enough
water. You do not need to add
water to the battery installed in
your new vehicle. But if a battery
has filler caps, be sure the right
(Continued)
WARNING (Continued)
amount of fluid is there. If it is low,
add water to take care of that
first. If you do not, explosive gas
could be present.
Battery fluid contains acid that
can burn you. Do not get it on
you. If you accidentally get it in
your eyes or on your skin, flush
the place with water and get
medical help immediately.
{WARNING
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.
6. Check that the jumper cables do not have loose or missing
insulation. If they do, you could
get a shock. The vehicles could
be damaged too. Before you connect the cables,
here are some basic things you
should know. Positive (+) goes to
positive (+) or to a remote
positive (+) terminal if the vehicle
has one. Negative (−) will go to a
heavy, unpainted metal engine
part or a solid engine ground.
Do not connect positive (+) to
negative (−) or you will get a
short that would damage the
battery and maybe other parts
too. Do not connect the
negative (−) cable to the
negative (−) terminal on the dead
battery because this can cause
sparks.
7. Connect the red positive (+) cable to the positive (+) terminal
of the vehicle with the dead
battery. Use a remote
positive (+) if the vehicle
has one.